| Diseases & Viruses | Pesticide | MOA1 | Efficacy2 | Rate per Acre3 | REI4 | PHI5 | Notes |
|---|---|---|---|---|---|---|---|
| Fusarium dry rot | Cruiser Maxx Potato Insecticide and Fungicide thiamethoxam + + fludioxonil | 4A; 12 | G | 12 h | There are reports of fludioxonil-resistant Fusarium populations. Combine with mancozeb, maneb, or another fungicide for resistance management. | ||
| Rhizoctonia canker and black scurf | Cruiser Maxx Potato Insecticide and Fungicide thiamethoxam + + fludioxonil | 4A; 12 | G | 12 h | Active against seed-borne Rhizoctonia. Use a soil-applied product (in-furrow) to control soil-borne Rhizoctonia. | ||
| Silver scurf | Cruiser Maxx Potato Insecticide and Fungicide thiamethoxam + + fludioxonil | 4A; 12 | G | 12 h |
| Insects & Mites | Pesticide | MOA1 | Efficacy2 | Rate per Acre3 | REI4 | PHI5 | Notes |
|---|---|---|---|---|---|---|---|
| Aphid | Admire Pro (seed treatment) imidacloprid | 4A | E | See Label | It may work too slowly to prevent spread of Potato Virus Y, especially when winged (migratory) aphid numbers are high. Apply at 0.17-0.35 fl oz/100 lb seed. | ||
| Belay (seed treatment) clothianidin | 4A | E | See Label | It may work too slowly to prevent spread of Potato Virus Y, especially when winged (migratory) aphid numbers are high. Apply at 0.4-0.6 fl oz/100 lb seed. | |||
| Cruiser Maxx Potato Insecticide and Fungicide thiamethoxam + + fludioxonil | 4A; 12 | E | See Label | 12 h | It may work too slowly to prevent spread of Potato Virus Y, especially when winged (migratory) aphid numbers are high. Apply at 0.19-0.27 fl oz/100 lb seed. | ||
| Beet Leafhopper | Admire Pro (seed treatment) imidacloprid | 4A | G | See Label | Should provide some early season control, but it may work too slowly to prevent rapid spread of phytoplasma diseases (e.g., purple top disease) when BLH numbers are high. Apply at 0.17-0.35 fl oz/100 lb seed. | ||
| Belay (seed treatment) clothianidin | 4A | G | See Label | Should provide some early season control, but it may work too slowly to prevent rapid spread of phytoplasma diseases (e.g., purple top disease) when BLH numbers are high. Apply at 0.4-0.6 fl oz/100 lb seed. | |||
| Cruiser Maxx Potato Insecticide and Fungicide thiamethoxam + + fludioxonil | 4A; 12 | G | See Label | 12 h | Should provide some early season control. It may work too slowly to prevent rapid spread of phytoplasma diseases (e.g., purple top disease) when BLH numbers are high. | ||
| Colorado Potato Beetle | Admire Pro (seed treatment) imidacloprid | 4A | E | See Label | Don’t be alarmed to find newly emerged adult beetles alive on treated plants, because it can take days for them to start feeding, ingest the insecticide, and then die. But if larvae are found on treated plants, then the product residual is probably no longer active. Apply at 0.17-0.35 fl oz/100 lb seed. | ||
| Belay (seed treatment) clothianidin | 4A | E | See Label | Don’t be alarmed to find newly emerged adult beetles alive on treated plants, because it can take days for them to start feeding, ingest the insecticide, and then die. But if larvae are found on treated plants, then the product residual is probably no longer active. Apply at 0.4-0.6 fl oz/100 lb seed. | |||
| Cruiser Maxx Potato Insecticide and Fungicide thiamethoxam + + fludioxonil | 4A; 12 | E | See Label | 12 h | Don't be alarmed to find newly emerged adult beetles alive on treated plants, because it can take days for them to start feeding, ingest the insecticide, and then die. But if larvae are found on treated plants, then the product residual is probably no longer active. Apply at 0.19-0.27 fl oz/100 lb seed. | ||
| Potato Psyllid | Admire Pro (seed treatment) imidacloprid | 4A | E (a) | See Label | It should control migrating adult potato psyllids for 60-90 days. The application may be followed-up with in-season, foliar insecticides for a no-gaps psyllid management strategy. Apply at 0.17-0.35 fl oz/100 lb seed. | ||
| Belay (seed treatment) clothianidin | 4A | E (a) | See Label | It should control migrating adult potato psyllids for 60-90 days. The application may be followed-up with in-season, foliar insecticides for a no-gaps psyllid management strategy. Apply at 0.4-0.6 fl oz/100 lb seed. | |||
| Cruiser Maxx Potato Insecticide and Fungicide thiamethoxam + + fludioxonil | 4A; 12 | E (a) | See Label | 12 h | It should control migrating adult potato psyllids for 60-90 days. The application may be followed-up with in-season, foliar insecticides for a no-gaps psyllid management strategy. Apply at 0.19-0.27 fl oz/100 lb seed. | ||
| Wireworms | Admire Pro (seed treatment) imidacloprid | 4A | P | See Label | It can reduce wireworm damage to seed-pieces, but it will not prevent most damage to daughter tubers during the growing season. Apply at 0.17-0.35 fl oz/100 lb seed. | ||
| Belay (seed treatment) clothianidin | 4A | P | See Label | It can reduce wireworm damage to seed-pieces, but it will not prevent damage to daughter tubers during the growing season. Apply at 0.4-0.6 fl oz/100 lb seed. | |||
| Cruiser Maxx Potato Insecticide and Fungicide thiamethoxam + + fludioxonil | 4A; 12 | P | See Label | 12 h | It can control wireworms that feed on the seed piece, but it will not prevent most damage to daughter tubers during the growing season. Apply at 0.19-0.27 fl oz/100 lb seed. | ||
| Mocap 15% Granular (broadcast) ethoprop | 1B | G | 27-40 lb | 72 h | Apply at a rate of 40 lbs/A to control wireworms and symphylans (80 lbs/A is used to control nematodes). The label suggests 2–4-inch incorporation for wireworms, but 6–8-inches may be better. | ||
| Mocap EC (broadcast) ethoprop | 1B | G | 0.67-1 gal | 72 h | Apply at a rate of 1 gal/A to control wireworms and symphylans (up to 2 gal/A can be used to control nematodes). The label suggests 2–4-inch incorporation for wireworms, but 6–8-inches may be better. | ||
| Telone II dichloropropene | 11 | G-F | 20-25 gal | 5 d | Apply when wireworms are present. Soil temperature at application depth must be > 50°F or wireworms may be too deep. Use 20 gal/A for mineral soil or 25 gal/A for muck. Shank-in at 14-inch depth or more, or at least 18-inch depth if also targeting nematodes. |
| Nematodes | Pesticide | MOA1 | Efficacy2 | Rate per Acre3 | REI4 | PHI5 | Notes |
|---|---|---|---|---|---|---|---|
| Nematodes (various spp.) | Mocap 15% Granular (broadcast) ethoprop | 1B | F | 40-80 lb | 72 h | Expect suppression of Northern root knot, Columbia root knot, and stubby root nematodes for 5 to 6 weeks. Severe infestations may not be adequately controlled. Apply at a rate of 80 lbs/A to control nematodes (40 lbs/A is used to control wireworms). | |
| Mocap EC (broadcast) ethoprop | 1B | F | 1-2 gal | 72 h | Expect suppression of Northern root knot, Columbia root knot, and stubby root nematodes for 5 to 6 weeks. Severe infestations may not be adequately controlled. Apply at a rate of 2 gal per acre to control nematodes (1 gal per acre is used to control wireworms). | ||
| Telone II dichloropropene | 11 | E-G | See Label | 5 d | Supplemental labeling for Telone II provides specific instructions for root knot and stubby root nematodes. | ||
| Root Lesion Nematodes | Telone II dichloropropene | 11 | E-G | 9-25 gal | 5 d | Apply by shanking in at ≥18-inch depth. Use 9-12 gal/A for mineral soils, and 25 gal/A for muck. Soil temperature must be between 40°F and 80°F. | |
| Root-Knot Nematodes | Telone II dichloropropene | 11 | E-G | 15-25 gal | 5 d | Columbia root knot nematodes: use 20 gal/A for mineral soil or 25 gal/A for muck. Northern root knot nematodes: use 15 gal/A for mineral soil or 18 gal/A for muck. Shank-in at 18-inch depth or more. Soil temperature must be between 40°F and 80°F. | |
| Stubby Root Nematodes | Telone II dichloropropene | 11 | E-G | 20-25 gal | 5 d | Use 20 gal/A for mineral soil or 25 gal/A for muck. Shank-in at 18-inch depth or more. Soil temperature must be between 40°F and 80°F. |
1Mode of action. NC = not classified..
2 Efficacy ratings denote the relative ability of a pesticide to control its target. The ratings are E = excellent, G = good, F = fair/suppression; P = poor, and ND = no data. Efficacy ratings are based on the inherent toxicity of the pesticide against its target, the likelihood that the target will contact or ingest the product as applied, duration of impact on the target, and undesired effects, such as negative impacts on natural enemies that could lead to future pest outbreaks.
3 Rate per acre per application. Refer to the product label for maximum use rate per season.
4 Reentry interval.
5The minimum pre-harvest interval. Some products do not list PHI.
Note: always read and follow the directions on the pesticide label.
| Insects & Mites | Pesticide | MOA1 | Efficacy2 | Rate per Acre3 | REI4 | PHI5 | Notes |
|---|---|---|---|---|---|---|---|
| Aphid | Admire Pro (soil application) imidacloprid | 4A | E | 5.7-8.7 fl oz | 12 h | It may work too slowly to prevent spread of Potato Virus Y, especially when winged (migratory) aphid numbers are high. | |
| Belay (soil application) clothianidin | 4A | E | 9-12 fl oz | 12 h | It may work too slowly to prevent spread of Potato Virus Y, especially when winged (migratory) aphid numbers are high. | ||
| Platinum 75 SG thiamethoxam | 4A | E | 1.66-2.67 oz | 12 h | It may work too slowly to prevent spread of Potato Virus Y, especially when winged (migratory) aphid numbers are high. | ||
| Thimet 20-G SmartBox phorate | 1 | G-F | See Label | 72 h | 90 d | Expect only 50 days of residual control. It may work too slowly to prevent spread of Potato Virus Y, especially when winged (migratory) aphid numbers are high. | |
| Beet Leafhopper | Admire Pro (soil application) imidacloprid | 4A | G | 5.7-8.7 fl oz | 12 h | Should provide some early season control, but it may work too slowly to prevent rapid spread of phytoplasma diseases (e.g., purple top disease) when BLH numbers are high. Watch the Contour Maps in the Potato DAS every week to monitor regional BLH population densities. | |
| Belay (soil application) clothianidin | 4A | G | 9-12 fl oz | 12 h | Should provide some early season control, but it may work too slowly to prevent rapid spread of phytoplasma diseases (e.g., purple top disease) when BLH numbers are high. | ||
| Platinum 75 SG thiamethoxam | 4A | G | 1.66-2.67 oz | 12 h | It should provide some early season control, but it may work too slowly to prevent rapid spread of phytoplasma diseases (e.g., purple top) when BLH numbers are high. Watch the Contour Maps in the Potato DAS every week to monitor regional BLH population densities. | ||
| Colorado Potato Beetle | Admire Pro (soil application) imidacloprid | 4A | E | 5.7-8.7 fl oz | 12 h | Don’t be alarmed to find newly emerged adult beetles alive on treated plants, because it can take days for them to start feeding, ingest the insecticide, and then die. But if larvae are found on treated plants, then the product residual is probably no longer active. | |
| Belay (soil application) clothianidin | 4A | E | 9-12 fl oz | 12 h | Don’t be alarmed to find newly emerged adult beetles alive on treated plants, because it can take days for them to start feeding, ingest the insecticide, and then die. But if larvae are found on treated plants, then the product residual is probably no longer active. | ||
| Platinum 75 SG thiamethoxam | 4A | E | 1.66-2.67 oz | 12 h | Don't be alarmed to find newly emerged adult beetles alive on treated plants, because it can take days for them to start feeding, ingest the insecticide, and then die. But if larvae are found on treated plants, then the product residual is probably no longer active. | ||
| Thimet 20-G SmartBox phorate | 1 | G-F | See Label | 72 h | 90 d | Expect only 50 days of residual control. | |
| Potato Psyllid | Admire Pro (soil application) imidacloprid | 4A | E (a) | 5.7-8.7 fl oz | 12 h | It should control migrating adult potato psyllids for 60-90 days. The application may be followed-up with in-season, foliar insecticides for a no-gaps psyllid management strategy. | |
| Belay (soil application) clothianidin | 4A | E (a) | 9-12 fl oz | 12 h | It should control migrating adult potato psyllids for 60-90 days. The application may be followed-up with in-season, foliar insecticides for a no-gaps psyllid management strategy. | ||
| Platinum 75 SG thiamethoxam | 4A | E (a) | 1.66-2.67 oz | 12 h | It should control migrating adult potato psyllids for 60-90 days. The application may be followed-up with in-season, foliar insecticides for a no-gaps psyllid management strategy. | ||
| Wireworms | Admire Pro (soil application) imidacloprid | 4A | P | 5.7-8.7 fl oz | 12 h | It can reduce wireworm damage to seed-pieces, but it will not prevent damage to daughter tubers during the growing season. | |
| Belay (soil application) clothianidin | 4A | P | 9-12 fl oz | 12 h | It can reduce wireworm damage to seed-pieces, but it will not prevent damage to daughter tubers during the growing season. | ||
| Brigade 2EC bifenthrin | 3 | F-P | 9.6-19.2 fl oz | 12 h | 21 d | Apply as a soil incorporated broadcast spray into the furrow at planting or at hilling to control wireworms. | |
| Mocap 15% Granular (banded) ethoprop | 1B | G | See Label | 72 h | Apply at a rate of 1.4 lbs. per 1,000 row feet to control wireworms and symphylans. | ||
| Mocap EC (banded) ethoprop | 1B | G | See Label | 72 h | Apply at a rate of 4.4 fl. oz per 1,000 row feet to control wireworms and symphylans. | ||
| Nurizma broflanilide | 30 | E | See Label See Label | 12 h | Use the highest labeled rate when wireworm pressure is high. It will also control white grubs. | ||
| Platinum 75 SG thiamethoxam | 4A | P | 1.66-2.67 oz | 12 h | It can control wireworms that feed on the seed piece, but it will not prevent most damage to daughter tubers during the growing season. | ||
| Regent 4SC fipronil | 2B | E | 3.2 fl oz | 0 h | 90 d | ||
| Seduce Insect Bait spinosad | 5 | F | 20-44 lb | 4 h | 7 d | Wireworms are not mentioned on the label, but applications made to target other pests (earwigs, cutworms) can suppress wireworms. Trials conducted by Agriculture Development Group, Inc. found an application at 40 lbs. per acre significantly reduced wireworm damage in a heavy pressure situation. Organic |
| Nematodes | Pesticide | MOA1 | Efficacy2 | Rate per Acre3 | REI4 | PHI5 | Notes |
|---|---|---|---|---|---|---|---|
| Nematodes (various spp.) | Vydate C-LV oxamyl | 1A | G | See Label | 48 h | 7 d | Vydate C-LV application instructions vary with nematode types. See instructions for Root-Knot Nematodes, Stubby-Root Nematodes, and Root Lesion Nematodes. |
| Root Lesion Nematodes | Vydate C-LV oxamyl | 1A | G | 2.1-4.25 pt | 48 h | 7 d | Start with an in-furrow application at planting and follow with foliar applications via chemigation. The in-furrow application is optional but is recommended to risk-averse growers and when following alfalfa. |
| Root-Knot Nematodes | Vydate C-LV oxamyl | 1A | G | 2.1-4.25 pt | 48 h | 7 d | Start with an in-furrow application at planting and follow with foliar applications via chemigation. The in-furrow application is optional but is recommended for risk-averse growers and when following alfalfa. |
| Stubby Root Nematodes | Vydate C-LV oxamyl | 1A | G | 2.1-4.25 pt | 48 h | 7 d | Start with an in-furrow application at planting and follow with foliar applications via chemigation. The in-furrow application is optional but is recommended to risk-averse growers and when following alfalfa. Corky ringspot may not be controlled if nematodes are not suppressed prior to tuber initiation. |
1Mode of action. NC = not classified..
2 Efficacy ratings denote the relative ability of a pesticide to control its target. The ratings are E = excellent, G = good, F = fair/suppression; P = poor, and ND = no data. Efficacy ratings are based on the inherent toxicity of the pesticide against its target, the likelihood that the target will contact or ingest the product as applied, duration of impact on the target, and undesired effects, such as negative impacts on natural enemies that could lead to future pest outbreaks.
3 Rate per acre per application. Refer to the product label for maximum use rate per season.
4 Reentry interval.
5The minimum pre-harvest interval. Some products do not list PHI.
Note: always read and follow the directions on the pesticide label.
| Insects & Mites | Pesticide | MOA1 | Efficacy2 | Rate per Acre3 | REI4 | PHI5 | Notes |
|---|---|---|---|---|---|---|---|
| Aphid | Actara thiamethoxam | 4A | E | 3 oz | 12 h | 14 d | Apply when aphids are first detected. |
| Admire Pro (foliar) imidacloprid | 4A | G | 1.3 fl oz | 12 h | 7 d | Apply to foliage when aphids are first detected. Expect shorter residual activity compared to seed treatment or soil application of Admire Pro. | |
| Asana XL esfenvalerate | 3 | F-P | 5.8-9.6 fl oz | 12 h | 7 d | Apply before aphid populations start to build, but only if it’s before mid-June. Not particularly effective for aphids. | |
| Assail 70WP acetamiprid | 4A | E | 1-1.7 oz | 12 h | 7 d | Apply when aphids are first detected. | |
| Athena abamectin (avermectin) and bifenthrin | 3, 6 | F-P | 7-17 fl oz | 12 h | 21 d | Apply before aphid populations build, but only if it’s before mid-June. Not very effective for aphids. | |
| Aza-Direct azadirachtin | NC | F-P | 1-3.5 pt | 4 h | 0 d | Apply when aphids first appear. It may work too slowly to limit spread of Potato Virus Y, especially when winged (migratory) aphid numbers are high. Does not provide immediate mortality.Organic | |
| Baythroid XL beta-cyfluthrin | 3 | F-P | 2.8 fl oz | 12 h | 0 d | Apply before aphid populations build, but only if it’s before mid-June. Not very effective for aphids. | |
| BioCover MLT mineral oil/petroleum distillate | NC | F-P | See Label | 4 h | Apply when aphids first appear to limit spread of Potato Virus Y, or before aphids are present in large numbers if the goal is to keep aphid numbers in check and virus spread is not a concern.Organic | ||
| Brigadier bifenthrin, imidacloprid | 3, 4A | G | 3.8-6.14 fl oz | 12 h | 21 d | Apply before aphid populations build, but only if it’s before mid-June. | |
| Carbine 50 WG flonicamid | 29 | E | 2-2.8 oz | 12 h | 7 d | Apply before populations start to build, or before a systemic aphicide treatment breaks down. Rapid feeding cessation, so it is a good choice to limit spread of Potato Virus Y. | |
| Cormoran novaluron, acetamidiprid | 15, 4A | G | 9-12 fl oz | 12 h | 14 d | Apply when aphids are first detected. The novaluron in Cormoran is not very effective for aphids. | |
| Dimethoate 400 EC dimethoate | 1B | G | 0.5-1 pt | 48 h | 0 d | It will knockback aphid populations, but products with longer residual activity are preferred for controlling migratory aphids and limiting Potato Virus Y spread. Better for late season to knockback multiple pests. | |
| Exirel cyantraniliprole | 28 | G | 13.5-20.5 fl oz | 12 h | 7 d | Apply before aphid populations build. Rapid anti-feeding activity helps to limit spread of viruses, like Potato Virus Y, that spread quickly. | |
| Fulfill pymetrozine | 9B | E | 2.75-5.5 oz | 12 h | 14 d | Apply before populations start to build, or before a systemic aphicide treatment breaks down. Rapid feeding cessation, and aphids die 3-5 days later. A good choice to limit spread of Potato Virus Y. Apply 5.5 oz/A if also targeting psyllids. | |
| Lannate LV methomyl | 1A | F | 1.5-3 pt | 48 h | 6 d | It will knockback aphids. Products with longer residuals are preferred for controlling migratory aphids and limiting Potato Virus Y spread. Better for late season to knockback multiple pests. | |
| Leverage 360 beta-cyfluthrin, imidacloprid | 3, 4 | G | 2.8 fl oz | 12 h | 7 d | Apply before aphid populations build, but only if it’s before mid-June. | |
| Minecto Pro abamectin, cyantraniprole | 6, 28 | G | 10 fl oz | 12 h | 14 d | Apply before aphid populations build. Rapid anti-feeding activity helps to limit spread of viruses, like Potato Virus Y, that spread quickly. The abamectin in Minecto Pro is not very effective for aphids. | |
| Movento HL spirotetramat | 23 | E-G | 2-2.5 fl oz | 24 h | 7 d | Apply before populations build, or about 10 days before an earlier systemic insecticide breaks down. It may work too slowly to prevent spread of Potato Virus Y, especially when winged (migratory) aphid numbers are high. | |
| Mustang Maxx zeta-cypermethrin | 3 | F-P | 3.2-4 fl oz | 12 h | 1 d | Apply before aphid populations start to build, and it is before mid-June. Not particularly effective for aphids. | |
| Neemix 4.5 IGR azadirachtin | NC | F-P | 5-7 fl oz | 4 h | 0 d | Apply when aphids first appear. It may work too slowly to limit spread of Potato Virus Y, especially when winged (migratory) aphid numbers are high. Does not provide immediate mortality.Organic | |
| PyGanic Crop Protection EC 5.0 pyrethrins | 3A | F-P | 4.5-15.61 fl oz | 12 h | 0 d | Apply when insects first appear. Don’t wait until plants are heavily infested. It may work too slowly to limit spread of Potato Virus Y, especially when winged (migratory) aphid numbers are high. Organic | |
| Sefina afidopyropen | 9D | E | 3 fl oz | 12 h | 7 d | Apply at the first sign of aphids. Anti-feeding activity should limit spread of potato viruses. | |
| Sivanto 200 SL flupyradifurone | 4D | E | 7-10.5 fl oz | 4 h | 7 d | Early-to-mid season application will cover several migrating pests. Apply before populations build. Rapid anti-feeding activity helps to limit spread of viruses, like Potato Virus Y, that spread quickly. Use the highest allowed rate when aphid pressure is high, foliage is dense, or with aerial application. | |
| Torac tolfenpyrad | 21A | G | 17-21 fl oz | 12 h | 14 d | Apply when aphids are present for knockback control with anti-feeding. Contact insecticide with limited residual activity, so good coverage is important, especially when leaf growth is rapid, and other insecticides may be needed to extend control. | |
| Transform WG sulfoxaflor | 4C | E | 0.75-1.5 oz | 24 h | 7 d | Early-to-mid season application will cover aphids and some other migrating pests. Apply when aphids are migrating into potatoes. | |
| Trilogy neem oil | NC | F-P | See Label | 4 h | 0 d | Apply before aphids are present in large numbers if the goal is to keep aphid numbers in check and virus spread is not a concern. Apply when aphids first appear to limit virus spread, however it may work too slowly to limit spread of Potato Virus Y, especially when winged (migratory) aphid numbers are high. Does not provide immediate mortality.Organic | |
| Vydate C-LV oxamyl | 1A | G-F | 1.1-2.1 pt | 48 h | 7 d | Applications targeting nematodes may suppress aphids but are not expected to control large infestations. Apply before populations build, or before an earlier systemic aphicide breaks down. Re-treat after 14-days if aphids continue to move into the field and your goal is to limit spread of Potato Virus Y. | |
| Warrior II lambda-cyhalothrin | 3 | F-P | 1.28-1.92 fl oz | 24 h | 7 d | Apply before aphid populations start to build, and it is before mid-June. Not particularly effective for aphids. | |
| Armyworms, Cutworms, Loopers | Asana XL esfenvalerate | 3 | G | 5.8-9.6 fl oz | 12 h | 7 d | Apply when small caterpillars are present, but only if it’s before mid-June. |
| Athena abamectin (avermectin) and bifenthrin | 3, 6 | G | 7-17 fl oz | 12 h | 21 d | Apply when small caterpillars are present if it’s before mid-June. | |
| Avaunt Insecticide indoxacarb | 22 | E-G | 2.5-6 oz | 12 h | 7 d | Apply when caterpillars are small. | |
| Aza-Direct azadirachtin | NC | ND | 1-3.5 pt | 4 h | 0 d | Apply when caterpillars are small. If needed, follow-up with 2-3 applications at 7-10 day intervals.Organic | |
| Baythroid XL beta-cyfluthrin | 3 | G | 1.6 to 2.8 fl oz | 12 h | 0 d | Apply when small caterpillars are present, but only if it’s before mid-June. | |
| Blackhawk spinosad | 5 | G | 2.25-3.5 oz | 4 h | 7 d | Apply when larvae are small. The lower rate of 2.25 oz. per acre may be used for small larvae, and 3 to 3.5 oz. per acre should be used for larger larvae, but the largest larval stages may not be controlled at any rate. | |
| Brigade 2EC bifenthrin | 3 | G | 2.1-6.4 fl oz | 12 h | 21 d | Worms are on the label but not in the potato section. Apply when small caterpillars are present, but only if it’s before mid-June. | |
| Brigadier bifenthrin, imidacloprid | 3, 4A | G | 4.8-6.14 fl oz | 12 h | 21 d | Apply when caterpillars are small, but only if it’s before mid-June. | |
| Cormoran novaluron, acetamidiprid | 15, 4A | E | 6-12 fl oz | 12 h | 14 d | Apply when caterpillars are small. | |
| Delegate WG spinetoram | 5 | E | 3-4 oz | 4 h | 7 d | Apply when caterpillars are small. | |
| Exirel cyantraniliprole | 28 | E | See Label | 12 h | 7 d | Apply when caterpillars are small. | |
| Lannate LV methomyl | 1A | G | 1.5-3 pt | 48 h | 6 d | Kills worms on contact for knockback control, but it may also knockback some beneficial, predatory insects. Apply when insects are active. | |
| Leverage 360 beta-cyfluthrin, imidacloprid | 3, 4 | G | 2.8 fl oz | 12 h | 7 d | Apply when caterpillars are small, but only if it’s before mid-June. | |
| Minecto Pro abamectin, cyantraniprole | 6, 28 | E | See Label | 12 h | 14 d | Apply when caterpillars are small. | |
| Mustang Maxx zeta-cypermethrin | 3 | G | See Label | 12 h | 1 d | Apply when small caterpillars are present, but only if it’s before mid-June. | |
| Neemix 4.5 IGR azadirachtin | NC | ND | 4-10 fl oz | 4 h | 0 d | Apply when caterpillars are small. If needed, follow-up with 2-3 applications at 7-10 day intervals.Organic | |
| PyGanic Crop Protection EC 5.0 pyrethrins | 3A | ND | 4.5-15.61 fl oz | 12 h | 0 d | Apply when caterpillars first appear. Don’t wait until plants are heavily infested. Organic | |
| Radiant SC spinetoram | 5 | E | 6-8 fl oz | 4 h | 7 d | Apply when caterpillars are small. | |
| Rimon novaluron | 15 | E | 6-12 fl oz | 12 h | 14 d | Apply when larvae are small. | |
| Torac tolfenpyrad | 21A | G | See Label | 12 h | 14 d | Lepidopteran caterpillars are on the label but not in the potato section. It can knockback their numbers, especially if used when caterpillars are small. | |
| Vantacor chlorantraniliprole | 28 | E | 1.2-2.5 fl oz | 4 h | 14 d | Apply when larvae are small. | |
| Warrior II lambda-cyhalothrin | 3 | G | fl oz | 24 h | 7 d | Apply when small caterpillars are present, but only if it’s before mid-June. | |
| Beet Leafhopper | Actara thiamethoxam | 4A | E | 1.5-3 oz | 12 h | 14 d | Apply when BLHs are present to minimize spread of phytoplasma diseases (e.g., purple top). |
| Admire Pro (foliar) imidacloprid | 4A | G-F | 1.3 fl oz | 12 h | 7 d | Apply to foliage when BLHs are present to minimize spread of phytoplasma diseases (e.g., purple top). | |
| Asana XL esfenvalerate | 3 | G | 2.9-5.8 fl oz | 12 h | 7 d | Apply in May and/or early-to-mid June if BLH populations are building. | |
| Assail 70WP acetamiprid | 4A | E | 0.6-1.7 oz | 12 h | 7 d | Apply when BLHs are present to minimize spread of phytoplasma diseases (e.g., purple top). Retreat after 7-10 days to maintain control of incoming BLHs. | |
| Aza-Direct azadirachtin | NC | ND | 1-3.5 pt | 4 h | 0 d | Apply when leafhoppers first appear. It may work too slowly to limit spread of phytoplasma diseases (e.g., purple top).Organic | |
| Baythroid XL beta-cyfluthrin | 3 | G | 0.8-1.6 fl oz | 12 h | 0 d | Apply in May and/or early-to-mid June if BLH populations are building. | |
| Brigadier bifenthrin, imidacloprid | 3, 4A | G | 3.8-6.14 fl oz | 12 h | 21 d | Apply in May and June to minimize spread of phytoplasma diseases (e.g., purple top) if BLH populations are building. | |
| Dimethoate 400 EC dimethoate | 1B | P | 0.5-1 pt | 48 h | 0 d | It will control BLHs on contact but is not recommended because it provides only a few days of residual control. Products with longer residual activity are more cost-effective for maintaining control of BLH during their migration periods and limiting spread of phytoplasma diseases (e.g., purple top). | |
| Imidan 70-W phosmet | 1B | P | 1.33 lb | 5 d | 7 d | It will control BLHs on contact but is not recommended for this pest because residues last only a few days. Products with longer residual activity are better for maintaining control of BLH during their migration periods and limiting spread of phytoplasma diseases (e.g., purple top). | |
| Lannate LV methomyl | 1A | P | 1.5-3 pt | 48 h | 6 d | It will control BLHs on contact but is not recommended for this pest because it provides only 5-7 days of residual control. Products with longer residual activity are more cost-effective for maintaining control of BLH during their migration periods and limiting spread of phytoplasma diseases (e.g., purple top). | |
| Leverage 360 beta-cyfluthrin, imidacloprid | 3, 4 | G | 2.8 fl oz | 12 h | 7 d | Apply in May and/or early-to-mid June if BLH populations are building. | |
| Mustang Maxx zeta-cypermethrin | 3 | G | 1.76-4 fl oz | 12 h | 1 d | Apply in May and/or early-to-mid June if BLH populations are building. | |
| Neemix 4.5 IGR azadirachtin | NC | ND | 7-16 fl oz | 4 h | 0 d | Apply when beet leafhoppers first appear. It may work too slowly to limit spread of phytoplasma diseases (e.g., purple top).Organic | |
| Sivanto 200 SL flupyradifurone | 4D | E | 7-10.5 fl oz | 4 h | 7 d | Early-to-mid season application will cover many migrating pests, including BLHs. Watch the Contour Maps in the Potato DAS every week to monitor regional BLH population densities. | |
| Transform WG sulfoxaflor | 4C | E | 1.5-2.25 oz | 24 h | 7 d | Early-to-mid season application will cover many migrating pests, including BLHs. Watch the Contour Maps in the Potato DAS every week to monitor regional BLH population densities. | |
| Vydate C-LV oxamyl | 1A | G | 1.1-2.1 pt | 48 h | 7 d | Apply when BLH populations are increasing. Re-treat after 14-days to maintain control of migrating BLHs. Making 3-4 applications late May to early July has been observed to control BLHs and prevent transmission of purple top disease. Later applications are not usually warranted. | |
| Warrior II lambda-cyhalothrin | 3 | G | 0.96-1.6 fl oz | 24 h | 7 d | Apply in May and June to minimize spread of phytoplasma diseases (e.g., purple top) if BLH populations are building. | |
| Colorado Potato Beetle | Actara thiamethoxam | 4A | E | 1.5-3 oz | 12 h | 14 d | Apply when about 50% of the eggs have hatched larvae are small. |
| Admire Pro (foliar) imidacloprid | 4A | G | 1.3 fl oz | 12 h | 7 d | Apply to foliage when about 50% of the eggs have hatched larvae are small. | |
| Agri-Mek SC abamectin | 6 | G | 1.75-3.5 fl oz | 12 h | 14 d | Apply when 50% of eggs have hatched and larvae are small. If two applications are needed, limit them to a single CPB generation. | |
| Asana XL esfenvalerate | 3 | G | 5.8-9.6 fl oz | 12 h | 7 d | Apply at 50% egg hatch while larvae are small, but only if it’s before mid-June. | |
| Assail 70WP acetamiprid | 4A | E | 0.6-1.7 oz | 12 h | 7 d | Apply when about 50% of the eggs have hatched larvae are small. | |
| Athena abamectin (avermectin) and bifenthrin | 3, 6 | G | 7-17 fl oz | 12 h | 21 d | Apply at 50% egg hatch when larvae are small, but only if it’s before mid-June. | |
| Avaunt Insecticide indoxacarb | 22 | E-G | 3.5-6 oz | 12 h | 7 d | Apply at 50% egg hatch when larvae are small. | |
| Aza-Direct azadirachtin | NC | F | 1-3.5 pt | 4 h | 0 d | Apply at 30% egg hatch when larvae are very small. If needed, follow-up with 2-3 applications at 7-10 day intervals.Organic | |
| Baythroid XL beta-cyfluthrin | 3 | G | 1.6-2.8 fl oz | 12 h | 0 d | Apply at 50% egg hatch while larvae are small, but only if it’s before mid-June. | |
| Blackhawk spinosad | 5 | G | 1.7-3.3 oz | 4 h | 7 d | Apply when about 50% of the eggs have hatched and most larvae are small. Do not apply to consecutive generations of CPB. | |
| Brigade 2EC bifenthrin | 3 | G | 2.1-6.4 fl oz | 12 h | 21 d | CPBs are on the label but not in the potato section. Apply at 50% egg hatch while larvae are small, but only if it’s before mid-June. | |
| Brigadier bifenthrin, imidacloprid | 3, 4A | G | 4.8-6.14 fl oz | 12 h | 21 d | Apply at 50% eggs hatch when larvae are small, but only if it’s before mid-June. | |
| Calantha ledprona | 35 | E | 12-16 fl oz | 4 hr | Apply at 25% egg hatch. This product will work on all life stages (except eggs) but is most effective against small larvae (up to 1/4 inch). | ||
| Cormoran novaluron, acetamidiprid | 15, 4A | E | 6-12 fl oz | 12 h | 14 d | Apply at 50% eggs hatch when larvae are small. Don’t apply to successive generations of CPB. | |
| Delegate WG spinetoram | 5 | G | 2.25-4 oz | 4 h | 7 d | Apply at 50% egg hatch when larvae are small. | |
| Entrust SC Naturalyte Insect Control spinosad | 5 | G | 4 h | 7 d | Apply at 30% egg hatch when larvae are very small. Organic | ||
| Exirel cyantraniliprole | 28 | E | 5-15.5 fl oz | 12 h | 7 d | Apply at 50% egg hatch when larvae are small. Do not apply more than once via chemigation for CPBs. | |
| Harvanta 50SL cyclaniliprole | 28 | E | 5.5-10.9 fl oz | 4 h | 7 d | See Section 2(ee) Recommendation. Apply at 50% eggs hatch when larvae are small. | |
| Imidan 70-W phosmet | 1B | G-F | 1.33 lb | 5 d | 7 d | Apply when about 50% of eggs have hatched and larvae are small for knockback control. | |
| Lannate LV methomyl | 1A | G | 1.5-3 pt | 48 h | 6 d | The label doesn’t mention CPBs, but applications made to target other pests will control beetles and larvae. It will also knockback some predator insects. | |
| Leverage 360 beta-cyfluthrin, imidacloprid | 3, 4 | G | 2.8 fl oz | 12 h | 7 d | Apply at 50% eggs hatch when larvae are small, but only if it’s before mid-June. | |
| Minecto Pro abamectin, cyantraniprole | 6, 28 | E | 5.5 to 10 fl oz | 12 h | 14 d | Apply at 50% egg hatch when larvae are small. Don’t apply more than twice to a generation of CPB, or within any 30-day period. | |
| Mustang Maxx zeta-cypermethrin | 3 | G | 3.2-4 fl oz | 12 h | 1 d | Apply at 50% egg hatch while larvae are small, but only if it’s before mid-June. | |
| Neemix 4.5 IGR azadirachtin | NC | F | 4-10 fl oz | 4 h | 0 d | Apply at 30% egg hatch when larvae are very small. If needed, follow-up with 2-3 applications at 7-10 day intervals.Organic | |
| PyGanic Crop Protection EC 5.0 pyrethrins | 3A | F | 4.5-15.61 fl oz | 12 h | 0 d | Apply at 30% egg hatch when larvae are first instars. Don’t wait until plants are heavily infested. Don’t apply to consecutive generations of CPB.Organic | |
| Radiant SC spinetoram | 5 | G | 4.5-8 fl oz | 4 h | 7 d | Apply at 50% egg hatch when larvae are small. | |
| Rimon novaluron | 15 | G | 6-12 fl oz | 12 h | 14 d | Apply at 50% egg hatch when larvae are small. Use higher rates and higher spray volumes when larvae are large. | |
| Sivanto 200 SL flupyradifurone | 4D | G | 10.5-14 fl oz | 4 h | 7 d | Apply at 50% egg hatch when larvae are small. | |
| Torac tolfenpyrad | 21A | E | 14-21 fl oz | 12 h | 14 d | Apply when about 50% of the eggs have hatched for best results. Rapid anti-feeding activity. It controls eggs, larvae, and adults. | |
| Trident Biological Insecticide Bacillus thuringiensis ssp. | 11 | ND | 3-6 qt | 4 h | 0 d | Apply as soon as eggs begin to hatch. Larvae stop eating within a few hours, and they die within 2-4 days. Organic | |
| Vantacor chlorantraniliprole | 28 | E | 1.2-2.5 fl oz | 4 h | 14 d | Apply when about 50% of the eggs have hatched and most larvae are small. Don’t apply more than once via chemigation for CPBs. | |
| Vydate C-LV oxamyl | 1A | G | 0.5-2.1 pt | 48 h | 7 d | Apply when 50% of eggs have hatched and most larvae are small. Expect 7-14 days of residual control. | |
| Warrior II lambda-cyhalothrin | 3 | G | 1.28-1.92 fl oz | 24 h | 7 d | Apply at 50% egg hatch while larvae are small, but only if it’s before mid-June. | |
| Lygus Bugs | Asana XL esfenvalerate | 3 | G | 5.8 to 9.6 fl oz | 12 h | 7 d | Lygus bugs are on the label but not in the potato section. Apply when nymphs are present if it’s before mid-June. |
| Athena abamectin (avermectin) and bifenthrin | 3, 6 | G | 10-17 fl oz | 12 h | 21 d | Apply when nymph stages are present and it’s before mid-June. | |
| Aza-Direct azadirachtin | NC | ND | 1-3.5 pt | 4 h | 0 d | Apply when nymphs are present.Organic | |
| Baythroid XL beta-cyfluthrin | 3 | G | See Label fl oz | 12 h | 0 d | Lygus bugs are on the label but not in the potato section. Apply when nymphs are present if it’s before mid-June. | |
| Brigade 2EC bifenthrin | 3 | G | 2.1-6.4 fl oz | 12 h | 21 d | Lygus bugs are on the label but not in the potato section. Apply when nymphs are present before mid-June. | |
| Brigadier bifenthrin, imidacloprid | 3, 4A | G | 4.8-6.14 fl oz | 12 h | 21 d | Apply when nymphs are present, but only if it’s before mid-June. | |
| Carbine 50 WG flonicamid | 29 | E | 2-2.8 oz | 12 h | 7 d | Apply when nymph stages are present. | |
| Dimethoate 400 EC dimethoate | 1B | G | 0.5-1 pt | 48 h | 0 d | Lygus bugs are on the label but not in the potato section. It will knockback lygus bugs, especially if applied when nymphs are present. | |
| Imidan 70-W phosmet | 1B | G-F | See Label | 5 d | 7 d | Lygus bugs are on the label but not in the potato section. It can knockback lygus bugs, especially if applied when nymphs are present. | |
| Lannate LV methomyl | 1A | G | 1.5-3 pt | 48 h | 6 d | Kills lygus bugs on contact for knockback control, but it may also knockback some beneficial, predatory insects. Apply when nymphs are present for best results. | |
| Leverage 360 beta-cyfluthrin, imidacloprid | 3, 4 | G | 2.8 fl oz | 12 h | 7 d | Apply when nymphs are present, but only if it’s before mid-June. | |
| Mustang Maxx zeta-cypermethrin | 3 | G | 3.2-4 fl oz | 12 h | 1 d | Apply when nymphs are present before mid-June. | |
| Neemix 4.5 IGR azadirachtin | NC | ND | 7-16 fl oz | 4 h | 0 d | Apply when nymphs are present. Organic | |
| PyGanic Crop Protection EC 5.0 pyrethrins | 3A | ND | 4.5-15.61 fl oz | 12 h | 0 d | Apply when nymphs first appear. Don’t wait until plants are heavily infested. Organic | |
| Rimon novaluron | 15 | G | See Label | 12 h | 14 d | Lygus bugs are not listed in the potato section of the label but are mentioned for other crops. Apply when early nymph stages are present. | |
| Transform WG sulfoxaflor | 4C | E | 1.5-2.25 oz | 24 h | 7 d | See Section 2ee Recommendation for plant bugs in potatoes. Apply when nymph stages are present. | |
| Vydate C-LV oxamyl | 1A | G | 1.1-2.1 pt | 48 h | 7 d | Apply when nymphs are present. | |
| Warrior II lambda-cyhalothrin | 3 | G | 1.28-1.92 fl oz | 24 h | 7 d | Apply when nymphs are present before mid-June. | |
| Potato Psyllid | Actara thiamethoxam | 4A | G (a) | 1.5-3 oz | 12 h | 14 d | The label does not mention potato psyllids, but applications targeting other pests can control them. Apply when adult psyllids are migrating into the field. |
| Admire Pro (foliar) imidacloprid | 4A | G (a) | 1.3 fl oz | 12 h | 7 d | Apply to foliage when adult potato psyllids are migrating. | |
| Agri-Mek SC abamectin | 6 | E (n+a) | 1.75-3.5 fl oz | 12 h | 14 d | Apply when psyllids are present, especially if eggs are hatching. It will control all life stages and is a good choice when eggs and nymphs are present. Translaminar, so it will control nymphs on the underside of leaves. | |
| Asana XL esfenvalerate | 3 | G (n+a) | 2.9-5.8 fl oz | 12 h | 7 d | Apply when adult psyllids are migrating into the field and it's before mid-June. If early nymphs are present, it may not control the nymphs that are on the underside of leaves where the product may not be as well distributed. | |
| Assail 70WP acetamiprid | 4A | G (a) | 0.6-1.7 oz | 12 h | 7 d | The label does not mention potato psyllids, but applications targeting other pests can control them. Apply when adult psyllids are migrating into the field. | |
| Athena abamectin (avermectin) and bifenthrin | 3, 6 | G (n+a) | 10-17 fl oz | 12 h | 21 d | Apply when psyllids are present, but only if it’s before mid-June. In addition to adults, it should control nymphs if they show up early in the season. | |
| Aza-Direct azadirachtin | NC | F | 1-3.5 pt | 4 h | 0 d | Apply when adults psyllids are depositing eggs and/or when nymphs are present. Organic | |
| Baythroid XL beta-cyfluthrin | 3 | G (n+a) | 1.6-2.8 fl oz | 12 h | 0 d | Apply when adult psyllids are migrating into the field and it’s before mid-June. If early nymphs are present, it may not control nymphs on the underside of leaves where the product is not well distributed. | |
| BioCover MLT mineral oil/petroleum distillate | NC | ND | See Label | 4 h | Apply before psyllids colonize the field (i.e., before nymphs develop into second generation adults) to limit spread of zebra chip disease. Organic | ||
| Blackhawk spinosad | 5 | G (n) | See Label | 4 h | 7 d | Psyllids are not on the label, but applications targeting other pests may control psyllid nymphs. No adult activity. Translaminar, so it should get to the nymphs on the underside of leaves. | |
| Brigade 2EC bifenthrin | 3 | G (n+a) | 2.1 to 6.4 fl oz | 12 h | 21 d | Apply when adult psyllids are migrating into the field, but only if it’s before mid-June. If early nymphs are present, it may not control the nymphs on the underside of leaves where the product is not well distributed. | |
| Brigadier bifenthrin, imidacloprid | 3, 4A | G (n+a) | 4.8-6.14 fl oz | 12 h | 21 d | Apply when adult psyllids are migrating into the field, but only if it’s before mid-June. It should also control nymphs. | |
| Carbine 50 WG flonicamid | 29 | E (n+a) | 2-2.8 oz | 12 h | 7 d | Apply when adult psyllids are migrating into the field and are depositing eggs. Rapid feeding cessation, so it is a good choice to limit zebra chip spread. Translaminar, so it will control nymphs on the underside of leaves, but not systemic. | |
| Cormoran novaluron, acetamidiprid | 15, 4A | G (n+a) | 12 fl oz | 12 h | 14 d | Apply when eggs are hatching/nymphs are present. It should control all life stages. | |
| Delegate WG spinetoram | 5 | G (n) | 3-4 oz | 4 h | 7 d | Apply when psyllids have deposited eggs that are hatching. It will not control adults. | |
| Dimethoate 400 EC dimethoate | 1B | F-P (a) | See Label | 48 h | 0 d | The label doesn’t mention psyllids, but applications made to target other pests will knockback psyllids. Products with longer residuals are preferred for controlling psyllids as they slowly migrate into potatoes. | |
| Entrust SC Naturalyte Insect Control spinosad | 5 | G (n) | See Label | 4 h | 7 d | The label does not mention psyllids, but it should provide some control. Apply when psyllid nymphs are present. Translaminar, so it should control nymphs on the underside of leaves. Organic | |
| Exirel cyantraniliprole | 28 | E (a) | 13.5-20.5 fl oz | 12 h | 7 d | Apply before psyllid populations build. Target the adult life stage. Rapid anti-feeding activity will also help to limit spread of zebra chip disease. | |
| Fulfill pymetrozine | 9B | G (n+a) | 5.5 oz | 12 h | 14 d | Apply when adults are migrating into the field and are depositing eggs. Translaminar, so it should control nymphs on the underside of leaves, but not systemic. | |
| Imidan 70-W phosmet | 1B | F-P (a) | 1.33 lb | 5 d | 7 d | It can knockback adult psyllid populations. Products with longer residuals are preferred for controlling psyllids as they slowly migrate into potatoes. | |
| Lannate LV methomyl | 1A | F | See Label | 48 h | 6 d | The label doesn’t mention psyllids, but applications made to target other pests will knockback adult psyllids. It will also knockback some predatory insects. Products with longer residuals are preferred for controlling psyllids as they slowly migrate into potatoes. Better for late season to knockback multiple pests. | |
| Leverage 360 beta-cyfluthrin, imidacloprid | 3, 4 | G (n+a) | 2.8 fl oz | 12 h | 7 d | Apply when adult psyllids are migrating into the field and it’s before mid-June. It should also control nymphs. | |
| Minecto Pro abamectin, cyantraniprole | 6, 28 | E (n+a) | 10 fl oz | 12 h | 14 d | Apply when adults are migrating into the field, especially if they are depositing eggs. Rapid anti-feeding activity will also help to limit spread of zebra chip disease. Controls all life stages. Translaminar, so it will control nymphs on the underside of leaves. | |
| Movento HL spirotetramat | 23 | E (n+a) | 2-2.5 fl oz | 24 h | 7 d | Apply at the first appearance of psyllids, or about 10 days before an earlier systemic insecticide breaks down. It is best used early in the outbreak cycle due to its systemic properties and to take advantage of its efficacy against all psyllid life stages. | |
| Mustang Maxx zeta-cypermethrin | 3 | G (n+a) | See Label | 12 h | 1 d | Psyllids are on the label but not in the potato section. Apply when adult psyllids are migrating into the field and it’s before mid-June. It may not control nymphs on the underside of leaves where the product is not well distributed. | |
| Neemix 4.5 IGR azadirachtin | NC | F | 7-16 fl oz | 4 h | 0 d | Apply when adults psyllids are depositing eggs and/or when nymphs are present. Organic | |
| PyGanic Crop Protection EC 5.0 pyrethrins | 3A | ND | 4.5-15.61 fl oz | 12 h | 0 d | Apply when psyllids first appear. Don't wait until plants are heavily infested.Organic | |
| Radiant SC spinetoram | 5 | G (n) | 6-8 fl oz | 4 h | 7 d | Apply when psyllids have deposited eggs that are hatching. It will not control adults. | |
| Rimon novaluron | 15 | F (n) | 12 fl oz | 12 h | 14 d | Apply when psyllid eggs are hatching/nymphs are present. This product does not control adults. The Rimon label recommends applying with an adulticide for optimum control. No systemic or translaminar activity, so it may not always reach nymphs on the underside of leaves. | |
| Sefina afidopyropen | 9D | G (n+a) | 14 fl oz | 12 h | 7 d | Apply when adults are migrating into the field, especially if they are depositing eggs. Rapid anti-feeding activity will also help to limit spread of zebra chip disease. Controls all life stages. Translaminar, so it will control nymphs on the underside of leaves. | |
| Torac tolfenpyrad | 21A | G (n+a) | 17-21 fl oz | 12 h | 14 d | Apply when psyllids are present for knockback control with anti-feeding. Products with longer residuals are preferred for controlling psyllids that slowly migrate into potatoes. Torac can control all life stages, but it may not always reach nymphs on the underside of leaves. | |
| Transform WG sulfoxaflor | 4C | E (n+a) | 2-2.25 oz | 24 h | 7 d | Early-to-mid season application will cover many incoming, migrating pests, including psyllids. Translaminar so it should get to the nymphs on the underside of leaves. Watch the Contour Maps in the Potato DAS every week to monitor regional potato psyllid population densities. | |
| Trilogy neem oil | NC | ND | See Label | 4 h | 0 d | Apply when adults psyllids are depositing eggs and/or when nymphs are present. Organic | |
| Warrior II lambda-cyhalothrin | 3 | G (n+a) | 1.28-1.92 fl oz | 24 h | 7 d | Apply when adult psyllids are migrating into the field and it’s before mid-June. If early nymphs are present, it may not control nymphs on the underside of leaves where the product is not well distributed. | |
| Thrips | Agri-Mek SC abamectin | 6 | F | 3.5 fl oz | 12 h | 14 d | Not recommended as a rescue treatment for thrips, but it can help to suppress thrips populations. |
| BioCover MLT mineral oil/petroleum distillate | NC | ND | See Label | 4 h | Apply before thrips are present in large numbers.Organic | ||
| Blackhawk spinosad | 5 | E | 2.25-3.5 oz | 4 h | 7 d | An adjuvant added to spray solution may improve thrips control. | |
| Delegate WG spinetoram | 5 | E | 3-4 oz | 4 h | 7 d | ||
| Entrust SC Naturalyte Insect Control spinosad | 5 | G | 4 h | 7 d | Organic | ||
| Lannate LV methomyl | 1A | G | 1.5-3 pt | 48 h | 6 d | Kills thrips on contact for knockback control. It may also knockback some beneficial, predatory insects. Apply when thrips are active. | |
| Minecto Pro abamectin, cyantraniprole | 6, 28 | F | 10 fl oz | 12 h | 14 d | Minecto Pro is not recommended as a rescue treatment for thrips, but it can help to suppress thrips populations. | |
| Movento HL spirotetramat | 23 | F | 2-2.5 fl oz | 24 h | 7 d | Movento HL can suppress thrips larvae, but it is not recommended as a rescue treatment. | |
| PyGanic Crop Protection EC 5.0 pyrethrins | 3A | ND | 4.5-15.61 fl oz | 12 h | 0 d | Don’t wait until plants are heavily infested. Organic | |
| Radiant SC spinetoram | 5 | E | 6-8 fl oz | 4 h | 7 d | ||
| Torac tolfenpyrad | 21A | G | 17-21 fl oz | 12 h | 14 d | Apply when thrips are present for knockback control. | |
| Trilogy neem oil | NC | ND | See Label | 4 h | 0 d | Apply before thrips are present in large numbers. Organic |
| Nematodes | Pesticide | MOA1 | Efficacy2 | Rate per Acre3 | REI4 | PHI5 | Notes |
|---|---|---|---|---|---|---|---|
| Nematodes (various spp.) | Movento HL spirotetramat | 23 | P | 2-2.5 fl oz | 24 h | 7 d | Movento HL can suppress nematodes, but it is best used in combination with other nematode controls, like fumigant nematicides or a Vydate (oxamyl) program. |
| Vydate C-LV oxamyl | 1A | G | See Label | 48 h | 7 d | Vydate C-LV application instructions vary with nematode types. See instructions for Root-Knot Nematodes, Stubby-Root Nematodes, and Root Lesion Nematodes. | |
| Root Lesion Nematodes | Vydate C-LV oxamyl | 1A | G | 2.1 pt | 48 h | 7 d | Apply the first foliar treatment of 2.1 pints/A via chemigation at crop emergence. Follow with three applications of 2.1 pints/A on 14-day intervals. |
| Root-Knot Nematodes | Vydate C-LV oxamyl | 1A | G | 2.1 pt | 48 h | 7 d | Apply the first foliar treatment of 2.1 pints/A via chemigation at crop emergence. Follow with 2.1 pints/A when soil degree-days reach 1440 DD °F, and then 2.1 pints/A on 14-day intervals until 7 days to harvest. |
| Stubby Root Nematodes | Vydate C-LV oxamyl | 1A | G | 2.1 pt | 48 h | 7 d | Apply the first foliar treatment of 2.1 pints/A via chemigation at crop emergence. Follow with three applications of 2.1 pints/A on 14-day intervals. Stubby root nematodes must be suppressed prior to tuber initiation to control corky ringspot. |
1Mode of action. NC = not classified..
2 Efficacy ratings denote the relative ability of a pesticide to control its target. The ratings are E = excellent, G = good, F = fair/suppression; P = poor, and ND = no data. Efficacy ratings are based on the inherent toxicity of the pesticide against its target, the likelihood that the target will contact or ingest the product as applied, duration of impact on the target, and undesired effects, such as negative impacts on natural enemies that could lead to future pest outbreaks.
3 Rate per acre per application. Refer to the product label for maximum use rate per season.
4 Reentry interval.
5The minimum pre-harvest interval. Some products do not list PHI.
Note: always read and follow the directions on the pesticide label.
| Insects & Mites | Pesticide | MOA1 | Efficacy2 | Rate per Acre3 | REI4 | PHI5 | Notes |
|---|---|---|---|---|---|---|---|
| Aphid | Actara thiamethoxam | 4A | E | 3 oz | 12 h | 14 d | Apply when aphids are first detected. |
| Asana XL esfenvalerate | 3 | P | 5.8 to 9.6 fl oz | 12 h | 7 d | Not particularly effective for aphids. Use of pyrethroid insecticides is not recommended mid-season. If used, monitor for subsequent pest outbreaks. | |
| Assail 70WP acetamiprid | 4A | E | 1-1.7 oz | 12 h | 7 d | Apply when aphids are first detected. | |
| Athena abamectin (avermectin) and bifenthrin | 3, 6 | P | 7 to 17 fl oz | 12 h | 21 d | Use of pyrethroid insecticides, including package mixes with other active ingredients, is not recommended mid-season. If used, apply before aphid populations build. Monitor for subsequent pest outbreaks. | |
| Aza-Direct azadirachtin | NC | F-P | 1-3.5 pt | 4 h | 0 d | Apply when aphids first appear. It may work too slowly to limit spread of Potato Virus Y, especially when winged (migratory) aphid numbers are high. Does not provide immediate mortality.Organic | |
| Baythroid XL beta-cyfluthrin | 3 | P | 2.8 fl oz | 12 h | 0 d | Use of pyrethroid insecticides is not recommended mid-season. Not very effective for aphids. If used, apply before aphid populations build. Monitor for subsequent pest outbreaks. | |
| BioCover MLT mineral oil/petroleum distillate | NC | F-P | See Label | 4 h | Apply when aphids first appear to limit spread of Potato Virus Y, or before aphids are present in large numbers if the goal is to keep aphid numbers in check and virus spread is not a concern.Organic | ||
| Brigadier bifenthrin, imidacloprid | 3, 4A | P | 3.8-6.14 fl oz | 12 h | 21 d | Use of pyrethroid insecticides is not recommended mid-season. If used, apply before aphid populations build. Monitor for subsequent pest outbreaks. | |
| Carbine 50 WG flonicamid | 29 | E | 2-2.8 oz | 12 h | 7 d | Apply before populations start to build, or before a systemic aphicide treatment breaks down. Rapid feeding cessation, so it is a good choice to limit spread of Potato Virus Y. | |
| Cormoran novaluron, acetamidiprid | 15, 4A | G | 9-12 fl oz | 12 h | 14 d | Apply when aphids are first detected. The novaluron in Cormoran is not very effective for aphids. | |
| Dimethoate 400 EC dimethoate | 1B | G | 0.5-1 pt | 48 h | 0 d | It will knockback aphid populations, but products with longer residual activity are preferred for controlling migratory aphids and limiting Potato Virus Y spread. Better for late season to knockback multiple pests. | |
| Exirel cyantraniliprole | 28 | G | 13.5-20.5 fl oz | 12 h | 7 d | Apply before aphid populations build. Rapid anti-feeding activity helps to limit spread of viruses, like Potato Virus Y, that spread quickly. | |
| Fulfill pymetrozine | 9B | E | 2.75-5.5 oz | 12 h | 14 d | Apply before populations start to build, or before a systemic aphicide treatment breaks down. Rapid feeding cessation, and aphids die 3-5 days later. A good choice to limit spread of Potato Virus Y. Apply 5.5 oz/A if also targeting psyllids. | |
| Lannate LV methomyl | 1A | F | 1.5-3 pt | 48 h | 6 d | It will knockback aphids. Products with longer residuals are preferred for controlling migratory aphids and limiting Potato Virus Y spread. Better for late season to knockback multiple pests. | |
| Leverage 360 beta-cyfluthrin, imidacloprid | 3, 4 | P | 2.8 fl oz | 12 h | 7 d | Use of pyrethroid insecticides is not recommended mid-season. If used, apply before aphid populations build. Monitor for subsequent pest outbreaks. | |
| Minecto Pro abamectin, cyantraniprole | 6, 28 | G | 10 fl oz | 12 h | 14 d | Apply before aphid populations build. Rapid anti-feeding activity helps to limit spread of viruses, like Potato Virus Y, that spread quickly. The abamectin in Minecto Pro is not very effective for aphids. | |
| Movento HL spirotetramat | 23 | E-G | 2-2.5 fl oz | 24 h | 7 d | Apply before populations build, or about 10 days before an earlier systemic insecticide breaks down. It may work too slowly to prevent spread of Potato Virus Y, especially when winged (migratory) aphid numbers are high. | |
| Mustang Maxx zeta-cypermethrin | 3 | P | 3.2-4 fl oz | 12 h | 1 d | Use of pyrethroid insecticides is not recommended mid-season. Not very effective for aphids. If used, apply before aphid populations build. Monitor for subsequent pest outbreaks. | |
| Neemix 4.5 IGR azadirachtin | NC | F-P | 5-7 fl oz | 4 h | 0 d | Apply when aphids first appear. It may work too slowly to limit spread of Potato Virus Y, especially when winged (migratory) aphid numbers are high. Does not provide immediate mortality.Organic | |
| PyGanic Crop Protection EC 5.0 pyrethrins | 3A | F-P | 4.5-15.61 fl oz | 12 h | 0 d | Apply when insects first appear. Don’t wait until plants are heavily infested. It may work too slowly to limit spread of Potato Virus Y, especially when winged (migratory) aphid numbers are high. Organic | |
| Sefina afidopyropen | 9D | E | 3 fl oz | 12 h | 7 d | Apply at the first sign of aphids. Anti-feeding activity should limit spread of potato viruses. | |
| Sivanto 200 SL flupyradifurone | 4D | E | 7-10.5 fl oz | 4 h | 7 d | Early-to-mid season application will cover several migrating pests. Apply before populations build. Rapid anti-feeding activity helps to limit spread of viruses, like Potato Virus Y, that spread quickly. Use the highest allowed rate when aphid pressure is high, foliage is dense, or with aerial application. | |
| Torac tolfenpyrad | 21A | G | 17-21 fl oz | 12 h | 14 d | Apply when aphids are present for knockback control with anti-feeding. Contact insecticide with limited residual activity, so good coverage is important, especially when leaf growth is rapid, and other insecticides may be needed to extend control. | |
| Transform WG sulfoxaflor | 4C | E | 0.75-1.5 oz | 24 h | 7 d | Early-to-mid season application will cover aphids and some other migrating pests. Apply when aphids are migrating into potatoes. | |
| Trilogy neem oil | NC | F-P | See Label | 4 h | 0 d | Apply before aphids are present in large numbers if the goal is to keep aphid numbers in check and virus spread is not a concern. Apply when aphids first appear to limit virus spread, however it may work too slowly to limit spread of Potato Virus Y, especially when winged (migratory) aphid numbers are high. Does not provide immediate mortality.Organic | |
| Vydate C-LV oxamyl | 1A | G-F | 1.1-2.1 pt | 48 h | 7 d | Applications targeting nematodes may suppress aphids but are not expected to control large infestations. Apply before populations build, or before an earlier systemic aphicide breaks down. Re-treat after 14-days if aphids continue to move into the field and your goal is to limit spread of Potato Virus Y. | |
| Warrior II lambda-cyhalothrin | 3 | P | 1.28-1.92 fl oz | 24 h | 7 d | Use of pyrethroid insecticides is not recommended mid-season. Not very effective for aphids. If used, apply before aphid populations build. Monitor for subsequent pest outbreaks. | |
| Notes: Early-to-mid season application will cover aphids and some other migrating pests. Apply when aphids are migrating into potatoes. | |||||||
| Armyworms, Cutworms, Loopers | Asana XL esfenvalerate | 3 | P | 5.8 to 9.6 fl oz | 12 h | 7 d | Use of pyrethroid insecticides is not recommended mid-season. If used, apply when small caterpillars are present. Monitor for subsequent pest outbreaks. |
| Athena abamectin (avermectin) and bifenthrin | 3, 6 | P | 7 to 17 fl oz | 12 h | 21 d | Use of pyrethroid insecticides, including package mixes with other active ingredients, is not recommended mid-season. If used, apply when caterpillars are small. Monitor for subsequent pest outbreaks. | |
| Avaunt Insecticide indoxacarb | 22 | E-G | 2.5-6 oz | 12 h | 7 d | Apply when caterpillars are small. | |
| Aza-Direct azadirachtin | NC | ND | 1-3.5 pt | 4 h | 0 d | Apply when caterpillars are small. If needed, follow-up with 2-3 applications at 7-10 day intervals.Organic | |
| Baythroid XL beta-cyfluthrin | 3 | P | 1.6 to 2.8 fl oz | 12 h | 0 d | Pyrethroid insecticides should not be applied mid-season. If used, apply when small caterpillars are present. Monitor for subsequent pest outbreaks. | |
| Blackhawk spinosad | 5 | G | 2.25-3.5 oz | 4 h | 7 d | Apply when larvae are small. The lower rate of 2.25 oz. per acre may be used for small larvae, and 3 to 3.5 oz. per acre should be used for larger larvae, but the largest larval stages may not be controlled at any rate. | |
| Brigade 2EC bifenthrin | 3 | P | 2.1 to 6.4 fl oz | 12 h | 21 d | Worms are on the label but not in the potato section. Use of pyrethroid insecticides is not recommended mid-season. If used, apply when small caterpillars are present. Monitor for subsequent pest outbreaks. | |
| Brigadier bifenthrin, imidacloprid | 3, 4A | P | 4.8-6.14 fl oz | 12 h | 21 d | Use of pyrethroid insecticides is not recommended mid-season. If used, apply when caterpillars are small. Monitor for subsequent pest outbreaks. | |
| Cormoran novaluron, acetamidiprid | 15, 4A | E | 6-12 fl oz | 12 h | 14 d | Apply when caterpillars are small. | |
| Delegate WG spinetoram | 5 | E | 3-4 oz | 4 h | 7 d | Apply when caterpillars are small. | |
| Exirel cyantraniliprole | 28 | E | See Label | 12 h | 7 d | Apply when caterpillars are small. | |
| Lannate LV methomyl | 1A | G | 1.5-3 pt | 48 h | 6 d | Kills worms on contact for knockback control, but it may also knockback some beneficial, predatory insects. Apply when insects are active. | |
| Leverage 360 beta-cyfluthrin, imidacloprid | 3, 4 | P | 2.8 fl oz | 12 h | 7 d | Use of pyrethroid insecticides is not recommended mid-season. If used, apply when caterpillars are small. Monitor for subsequent pest outbreaks. | |
| Minecto Pro abamectin, cyantraniprole | 6, 28 | E | See Label | 12 h | 14 d | Apply when caterpillars are small. | |
| Mustang Maxx zeta-cypermethrin | 3 | P | See Label | 12 h | 1 d | Use of pyrethroid insecticides is not recommended mid-season. If used, apply when small caterpillars are present. Monitor for subsequent pest outbreaks. | |
| Neemix 4.5 IGR azadirachtin | NC | ND | 4-10 fl oz | 4 h | 0 d | Apply when caterpillars are small. If needed, follow-up with 2-3 applications at 7-10 day intervals.Organic | |
| PyGanic Crop Protection EC 5.0 pyrethrins | 3A | ND | 4.5-15.61 fl oz | 12 h | 0 d | Apply when caterpillars first appear. Don’t wait until plants are heavily infested. Organic | |
| Radiant SC spinetoram | 5 | E | 6-8 fl oz | 4 h | 7 d | Apply when caterpillars are small. | |
| Rimon novaluron | 15 | E | 6-12 fl oz | 12 h | 14 d | Apply when larvae are small. | |
| Torac tolfenpyrad | 21A | G | See Label | 12 h | 14 d | Lepidopteran caterpillars are on the label but not in the potato section. It can knockback their numbers, especially if used when caterpillars are small. | |
| Vantacor chlorantraniliprole | 28 | E | 1.2-2.5 fl oz | 4 h | 14 d | Apply when larvae are small. | |
| Warrior II lambda-cyhalothrin | 3 | P | fl oz | 24 h | 7 d | Use of pyrethroid insecticides is not recommended mid-season. If used, apply when small caterpillars are present. Monitor for subsequent pest outbreaks. | |
| Beet Leafhopper | Actara thiamethoxam | 4A | E | 1.5-3 oz | 12 h | 14 d | Apply when BLHs are present to minimize spread of phytoplasma diseases (e.g., purple top). |
| Assail 70WP acetamiprid | 4A | E | 0.6-1.7 oz | 12 h | 7 d | Apply when BLHs are present to minimize spread of phytoplasma diseases (e.g., purple top). Retreat after 7-10 days to maintain control of incoming BLHs. | |
| Sivanto 200 SL flupyradifurone | 4D | E | 7-10.5 fl oz | 4 h | 7 d | Early-to-mid season application will cover many migrating pests, including BLHs. Watch the Contour Maps in the Potato DAS every week to monitor regional BLH population densities. | |
| Transform WG sulfoxaflor | 4C | E | 1.5-2.25 oz | 24 h | 7 d | Early-to-mid season application will cover many migrating pests, including BLHs. Watch the Contour Maps in the Potato DAS every week to monitor regional BLH population densities. | |
| Colorado Potato Beetle | Actara thiamethoxam | 4A | E | 1.5-3 oz | 12 h | 14 d | Apply when about 50% of the eggs have hatched larvae are small. |
| Agri-Mek SC abamectin | 6 | G | 1.75-3.5 fl oz | 12 h | 14 d | Apply when 50% of eggs have hatched and larvae are small. If two applications are needed, limit them to a single CPB generation. | |
| Asana XL esfenvalerate | 3 | P | 5.8 to 9.6 fl oz | 12 h | 7 d | Use of pyrethroid insecticides is not recommended mid-season. If used, apply when larvae are small. Monitor for subsequent pest outbreaks. | |
| Assail 70WP acetamiprid | 4A | E | 0.6-1.7 oz | 12 h | 7 d | Apply when about 50% of the eggs have hatched larvae are small. | |
| Athena abamectin (avermectin) and bifenthrin | 3, 6 | P | 7 to 17 fl oz | 12 h | 21 d | Use of pyrethroid insecticides, including package mixes with other active ingredients, is not recommended mid-season. If used, apply when larvae are small. Monitor for subsequent pest outbreaks. | |
| Avaunt Insecticide indoxacarb | 22 | E-G | 3.5-6 oz | 12 h | 7 d | Apply at 50% egg hatch when larvae are small. | |
| Aza-Direct azadirachtin | NC | F | 1-3.5 pt | 4 h | 0 d | Apply at 30% egg hatch when larvae are very small. If needed, follow-up with 2-3 applications at 7-10 day intervals.Organic | |
| Baythroid XL beta-cyfluthrin | 3 | P | 1.6-2.8 fl oz | 12 h | 0 d | Use of pyrethroid insecticides is not recommended mid-season. If used, apply when larvae are small. Monitor for subsequent pest outbreaks. | |
| Blackhawk spinosad | 5 | G | 1.7-3.3 oz | 4 h | 7 d | Apply when about 50% of the eggs have hatched and most larvae are small. Do not apply to consecutive generations of CPB. | |
| Brigade 2EC bifenthrin | 3 | P | 2.1 to 6.4 fl oz | 12 h | 21 d | CPBs are on the label but not in the potato section. Use of pyrethroid insecticides is not recommended mid-season. If used, apply when larvae are small. Monitor for subsequent pest outbreaks. | |
| Brigadier bifenthrin, imidacloprid | 3, 4A | P | 4.8-6.14 fl oz | 12 h | 21 d | Use of pyrethroid insecticides is not recommended mid-season. If used, apply at 50% eggs hatch when larvae are small. Monitor for subsequent pest outbreaks. | |
| Calantha ledprona | 35 | E | 12-16 fl oz | 4 hr | Apply at 25% egg hatch. This product will work on all life stages (except eggs) but is most effective against small larvae (up to 1/4 inch). | ||
| Cormoran novaluron, acetamidiprid | 15, 4A | E | 6-12 fl oz | 12 h | 14 d | Apply at 50% eggs hatch when larvae are small. Don’t apply to successive generations of CPB. | |
| Delegate WG spinetoram | 5 | G | 2.25-4 oz | 4 h | 7 d | Apply at 50% egg hatch when larvae are small. | |
| Entrust SC Naturalyte Insect Control spinosad | 5 | G | 4 h | 7 d | Apply at 30% egg hatch when larvae are very small. Organic | ||
| Exirel cyantraniliprole | 28 | E | 5-15.5 fl oz | 12 h | 7 d | Apply at 50% egg hatch when larvae are small. Do not apply more than once via chemigation for CPBs. | |
| Harvanta 50SL cyclaniliprole | 28 | E | 5.5-10.9 fl oz | 4 h | 7 d | See Section 2(ee) Recommendation. Apply at 50% eggs hatch when larvae are small. | |
| Imidan 70-W phosmet | 1B | G-F | 1.33 lb | 5 d | 7 d | Apply when about 50% of eggs have hatched and larvae are small for knockback control. | |
| Lannate LV methomyl | 1A | G | 1.5-3 pt | 48 h | 6 d | The label doesn’t mention CPBs, but applications made to target other pests will control beetles and larvae. It will also knockback some predator insects. | |
| Leverage 360 beta-cyfluthrin, imidacloprid | 3, 4 | P | 2.8 fl oz | 12 h | 7 d | Use of pyrethroid insecticides is not recommended mid-season. If used, apply before aphid populations build. Monitor for subsequent pest outbreaks. | |
| Minecto Pro abamectin, cyantraniprole | 6, 28 | E | 5.5 to 10 fl oz | 12 h | 14 d | Apply at 50% egg hatch when larvae are small. Don’t apply more than twice to a generation of CPB, or within any 30-day period. | |
| Mustang Maxx zeta-cypermethrin | 3 | P | 3.2-4 fl oz | 12 h | 1 d | Use of pyrethroid insecticides is not recommended mid-season. If used, apply when larvae are small. Monitor for subsequent pest outbreaks. | |
| Neemix 4.5 IGR azadirachtin | NC | F | 4-10 fl oz | 4 h | 0 d | Apply at 30% egg hatch when larvae are very small. If needed, follow-up with 2-3 applications at 7-10 day intervals.Organic | |
| PyGanic Crop Protection EC 5.0 pyrethrins | 3A | F | 4.5-15.61 fl oz | 12 h | 0 d | Apply at 30% egg hatch when larvae are first instars. Don’t wait until plants are heavily infested. Don’t apply to consecutive generations of CPB.Organic | |
| Radiant SC spinetoram | 5 | G | 4.5-8 fl oz | 4 h | 7 d | Apply at 50% egg hatch when larvae are small. | |
| Rimon novaluron | 15 | G | 6-12 fl oz | 12 h | 14 d | Apply at 50% egg hatch when larvae are small. Use higher rates and higher spray volumes when larvae are large. | |
| Sivanto 200 SL flupyradifurone | 4D | G | 10.5-14 fl oz | 4 h | 7 d | Apply at 50% egg hatch when larvae are small. | |
| Torac tolfenpyrad | 21A | E | 14-21 fl oz | 12 h | 14 d | Apply when about 50% of the eggs have hatched for best results. Rapid anti-feeding activity. It controls eggs, larvae, and adults. | |
| Trident Biological Insecticide Bacillus thuringiensis ssp. | 11 | ND | 3-6 qt | 4 h | 0 d | Apply as soon as eggs begin to hatch. Larvae stop eating within a few hours, and they die within 2-4 days. Organic | |
| Vantacor chlorantraniliprole | 28 | E | 1.2-2.5 fl oz | 4 h | 14 d | Apply when about 50% of the eggs have hatched and most larvae are small. Don’t apply more than once via chemigation for CPBs. | |
| Vydate C-LV oxamyl | 1A | G | 0.5-2.1 pt | 48 h | 7 d | Apply when 50% of eggs have hatched and most larvae are small. Expect 7-14 days of residual control. | |
| Warrior II lambda-cyhalothrin | 3 | P | 1.28-1.92 fl oz | 24 h | 7 d | Use of pyrethroid insecticides is not recommended mid-season. If used, apply when larvae are small. Monitor for subsequent pest outbreaks. | |
| Lygus Bugs | Asana XL esfenvalerate | 3 | P | 5.8 to 9.6 fl oz | 12 h | 7 d | Lygus bugs are on the label but not in the potato section. Use of pyrethroid insecticides is not recommended mid-season. If used, apply when nymphs are present. Monitor for subsequent pest outbreaks. |
| Athena abamectin (avermectin) and bifenthrin | 3, 6 | P | 10 to 17 fl oz | 12 h | 21 d | Use of pyrethroid insecticides, including package mixes with other active ingredients, is not recommended mid-season. If used, apply when nymphs are small. Monitor for subsequent pest outbreaks. | |
| Aza-Direct azadirachtin | NC | ND | 1-3.5 pt | 4 h | 0 d | Apply when nymphs are present.Organic | |
| Baythroid XL beta-cyfluthrin | 3 | P | See Label fl oz | 12 h | 0 d | Lygus bugs are on the label but not in the potato section. Use of pyrethroid insecticides is not recommended mid-season. If used, apply when nymphs are present. Monitor for subsequent pest outbreaks. | |
| Brigade 2EC bifenthrin | 3 | P | 2.1-6.4 fl oz | 12 h | 21 d | Lygus bugs are on the label but not in the potato section. Use of pyrethroid insecticides is not recommended mid-season. If used, apply when small larvae are present. Monitor for subsequent pest outbreaks. | |
| Brigadier bifenthrin, imidacloprid | 3, 4A | P | 4.8-6.14 fl oz | 12 h | 21 d | Use of pyrethroid insecticides is not recommended mid-season. If used, apply when nymphs are present. Monitor for subsequent pest outbreaks. | |
| Carbine 50 WG flonicamid | 29 | E | 2-2.8 oz | 12 h | 7 d | Apply when nymph stages are present. | |
| Dimethoate 400 EC dimethoate | 1B | G | 0.5-1 pt | 48 h | 0 d | Lygus bugs are on the label but not in the potato section. It will knockback lygus bugs, especially if applied when nymphs are present. | |
| Imidan 70-W phosmet | 1B | G-F | See Label | 5 d | 7 d | Lygus bugs are on the label but not in the potato section. It can knockback lygus bugs, especially if applied when nymphs are present. | |
| Lannate LV methomyl | 1A | G | 1.5-3 pt | 48 h | 6 d | Kills lygus bugs on contact for knockback control, but it may also knockback some beneficial, predatory insects. Apply when nymphs are present for best results. | |
| Leverage 360 beta-cyfluthrin, imidacloprid | 3, 4 | P | 2.8 fl oz | 12 h | 7 d | Use of pyrethroid insecticides is not recommended mid-season. If used, apply when nymphs are present. Monitor for subsequent pest outbreaks. | |
| Mustang Maxx zeta-cypermethrin | 3 | P | 3.2-4 fl oz | 12 h | 1 d | Use of pyrethroid insecticides is not recommended mid-season. If used, apply when nymphs are present. Monitor for subsequent pest outbreaks. | |
| Neemix 4.5 IGR azadirachtin | NC | ND | 7-16 fl oz | 4 h | 0 d | Apply when nymphs are present. Organic | |
| PyGanic Crop Protection EC 5.0 pyrethrins | 3A | ND | 4.5-15.61 fl oz | 12 h | 0 d | Apply when nymphs first appear. Don’t wait until plants are heavily infested. Organic | |
| Rimon novaluron | 15 | G | See Label | 12 h | 14 d | Lygus bugs are not listed in the potato section of the label but are mentioned for other crops. Apply when early nymph stages are present. | |
| Transform WG sulfoxaflor | 4C | E | 1.5-2.25 oz | 24 h | 7 d | See Section 2ee Recommendation for plant bugs in potatoes. Apply when nymph stages are present. | |
| Vydate C-LV oxamyl | 1A | G | 1.1-2.1 pt | 48 h | 7 d | Apply when nymphs are present. | |
| Warrior II lambda-cyhalothrin | 3 | P | 1.28-1.92 fl oz | 24 h | 7 d | Use of pyrethroid insecticides is not recommended mid-season. If used, apply when nymphs are present. Monitor for subsequent pest outbreaks. | |
| Potato Psyllid | Actara thiamethoxam | 4A | G (a) | 1.5-3 oz | 12 h | 14 d | The label does not mention potato psyllids, but applications targeting other pests can control them. Apply when adult psyllids are migrating into the field. |
| Agri-Mek SC abamectin | 6 | E (n+a) | 1.75-3.5 fl oz | 12 h | 14 d | Apply when psyllids are present, especially if eggs are hatching. It will control all life stages and is a good choice when eggs and nymphs are present. Translaminar, so it will control nymphs on the underside of leaves. | |
| Asana XL esfenvalerate | 3 | P (n+a) | 12 h | 7 d | Use of pyrethroid insecticides is not recommended mid-season. If used, apply when psyllids are present. It may not provide adequate control of nymphs on the underside of leaves. Monitor for subsequent pest outbreaks. | ||
| Assail 70WP acetamiprid | 4A | G (a) | 0.6-1.7 oz | 12 h | 7 d | The label does not mention potato psyllids, but applications targeting other pests can control them. Apply when adult psyllids are migrating into the field. | |
| Athena abamectin (avermectin) and bifenthrin | 3, 6 | P (n+a) | 10 to 17 fl oz | 12 h | 21 d | Use of pyrethroid insecticides, including package mixes with other active ingredients, is not recommended mid-season. If used, apply when psyllids are present. It will control nymphs and adults. Monitor for subsequent pest outbreaks. | |
| Aza-Direct azadirachtin | NC | F | 1-3.5 pt | 4 h | 0 d | Apply when adults psyllids are depositing eggs and/or when nymphs are present. Organic | |
| Baythroid XL beta-cyfluthrin | 3 | P | 1.6-2.8 fl oz | 12 h | 0 d | Use of pyrethroid insecticides is not recommended mid-season. If used, apply when psyllids are present. It may not control nymphs on the underside of leaves where the product is not well distributed. Monitor for subsequent pest outbreaks. | |
| BioCover MLT mineral oil/petroleum distillate | NC | ND | See Label | 4 h | Apply before psyllids colonize the field (i.e., before nymphs develop into second generation adults) to limit spread of zebra chip disease. Organic | ||
| Blackhawk spinosad | 5 | G (n) | See Label | 4 h | 7 d | Psyllids are not on the label, but applications targeting other pests may control psyllid nymphs. No adult activity. Translaminar, so it should get to the nymphs on the underside of leaves. | |
| Brigade 2EC bifenthrin | 3 | P (n+a) | 2.1-6.4 fl oz | 12 h | 21 d | Use of pyrethroid insecticides is not recommended mid-season. If used, apply when psyllids are present. It may not control nymphs on the underside of leaves where the product is not well distributed. Monitor for subsequent pest outbreaks. | |
| Brigadier bifenthrin, imidacloprid | 3, 4A | P | 4.8-6.14 fl oz | 12 h | 21 d | Use of pyrethroid insecticides is not recommended mid-season. If used, apply when adult psyllids are migrating into the field. It should also control nymphs. Monitor for subsequent pest outbreaks. | |
| Carbine 50 WG flonicamid | 29 | E (n+a) | 2-2.8 oz | 12 h | 7 d | Apply when adult psyllids are migrating into the field and are depositing eggs. Rapid feeding cessation, so it is a good choice to limit zebra chip spread. Translaminar, so it will control nymphs on the underside of leaves, but not systemic. | |
| Cormoran novaluron, acetamidiprid | 15, 4A | G (n+a) | 12 fl oz | 12 h | 14 d | Apply when eggs are hatching/nymphs are present. It should control all life stages. | |
| Delegate WG spinetoram | 5 | G (n) | 3-4 oz | 4 h | 7 d | Apply when psyllids have deposited eggs that are hatching. It will not control adults. | |
| Dimethoate 400 EC dimethoate | 1B | F-P (a) | See Label | 48 h | 0 d | The label doesn’t mention psyllids, but applications made to target other pests will knockback psyllids. Products with longer residuals are preferred for controlling psyllids as they slowly migrate into potatoes. | |
| Entrust SC Naturalyte Insect Control spinosad | 5 | G (n) | See Label | 4 h | 7 d | The label does not mention psyllids, but it should provide some control. Apply when psyllid nymphs are present. Translaminar, so it should control nymphs on the underside of leaves. Organic | |
| Exirel cyantraniliprole | 28 | E (a) | 13.5-20.5 fl oz | 12 h | 7 d | Apply before psyllid populations build. Target the adult life stage. Rapid anti-feeding activity will also help to limit spread of zebra chip disease. | |
| Fulfill pymetrozine | 9B | G (n+a) | 5.5 oz | 12 h | 14 d | Apply when adults are migrating into the field and are depositing eggs. Translaminar, so it should control nymphs on the underside of leaves, but not systemic. | |
| Imidan 70-W phosmet | 1B | F-P (a) | 1.33 lb | 5 d | 7 d | It can knockback adult psyllid populations. Products with longer residuals are preferred for controlling psyllids as they slowly migrate into potatoes. | |
| Lannate LV methomyl | 1A | G | See Label | 48 h | 6 d | The label doesn't mention psyllids, but applications made to target other pests will knockback adult psyllids. It will also knockback some predatory insects. Products with longer residuals are preferred for controlling psyllids as they slowly migrate into potatoes. Best used late in the season to knockback multiple pests. | |
| Leverage 360 beta-cyfluthrin, imidacloprid | 3, 4 | P (n+a) | 2.8 fl oz | 12 h | 7 d | Use of pyrethroid insecticides is not recommended mid-season. If used, apply when adult psyllids are migrating into the field. Monitor for subsequent pest outbreaks. | |
| Minecto Pro abamectin, cyantraniprole | 6, 28 | E (n+a) | 10 fl oz | 12 h | 14 d | Apply when adults are migrating into the field, especially if they are depositing eggs. Rapid anti-feeding activity will also help to limit spread of zebra chip disease. Controls all life stages. Translaminar, so it will control nymphs on the underside of leaves. | |
| Miteus fenpyroximate | 21A | E (n+a) | 2 pt | 12 h | 7 d | Apply when adults have migrated into the field and are depositing eggs. Controls all life stages, also stops feeding and egg laying. | |
| Movento HL spirotetramat | 23 | E (n+a) | 2-2.5 fl oz | 24 h | 7 d | Apply at the first appearance of psyllids, or about 10 days before an earlier systemic insecticide breaks down. It is best used early in the outbreak cycle due to its systemic properties and to take advantage of its efficacy against all psyllid life stages. | |
| Mustang Maxx zeta-cypermethrin | 3 | P | fl oz | 12 h | 1 d | Psyllids are on the label but not in the potato section. Use of pyrethroid insecticides is not recommended mid-season. If used, apply when psyllids are present. It may not control nymphs on the underside of leaves where the product is not well distributed. Monitor for subsequent pest outbreaks. | |
| Neemix 4.5 IGR azadirachtin | NC | F | 7-16 fl oz | 4 h | 0 d | Apply when adults psyllids are depositing eggs and/or when nymphs are present. Organic | |
| Oberon 4SC spiromesifen | 23 | E-G (n) | 4-8 oz | 12 h | 7 d | Apply to control psyllid eggs and nymphs. Translaminar, so it should control nymphs on the underside of leaves. It will not control adults. | |
| Onager, Onager Optek hexythiazox | 10A | G (n) | 16 to 24 fl oz | 12 h | 21 d | Apply to control psyllid eggs and nymphs. Translaminar, so it should control nymphs on the underside of leaves. It will not control adults. | |
| PyGanic Crop Protection EC 5.0 pyrethrins | 3A | ND | 4.5-15.61 fl oz | 12 h | 0 d | Apply when psyllids first appear. Don't wait until plants are heavily infested.Organic | |
| Radiant SC spinetoram | 5 | G (n) | 6-8 fl oz | 4 h | 7 d | Apply when psyllids have deposited eggs that are hatching. It will not control adults. | |
| Rimon novaluron | 15 | F (n) | 12 fl oz | 12 h | 14 d | Apply when psyllid eggs are hatching/nymphs are present. This product does not control adults. The Rimon label recommends applying with an adulticide for optimum control. No systemic or translaminar activity, so it may not always reach nymphs on the underside of leaves. | |
| Sefina afidopyropen | 9D | G (n+a) | 14 fl oz | 12 h | 7 d | Apply when adults are migrating into the field, especially if they are depositing eggs. Rapid anti-feeding activity will also help to limit spread of zebra chip disease. Controls all life stages. Translaminar, so it will control nymphs on the underside of leaves. | |
| Torac tolfenpyrad | 21A | G (n+a) | 17-21 fl oz | 12 h | 14 d | Apply when psyllids are present for knockback control with anti-feeding. Products with longer residuals are preferred for controlling psyllids that slowly migrate into potatoes. Torac can control all life stages, but it may not always reach nymphs on the underside of leaves. | |
| Transform WG sulfoxaflor | 4C | E (n+a) | 2-2.25 oz | 24 h | 7 d | Early-to-mid season application will cover many incoming, migrating pests, including psyllids. Translaminar so it should get to the nymphs on the underside of leaves. Watch the Contour Maps in the Potato DAS every week to monitor regional potato psyllid population densities. | |
| Trilogy neem oil | NC | ND | See Label | 4 h | 0 d | Apply when adults psyllids are depositing eggs and/or when nymphs are present. Organic | |
| Warrior II lambda-cyhalothrin | 3 | P | 1.28-1.92 fl oz | 24 h | 7 d | Use of pyrethroid insecticides is not recommended mid-season. If used, apply when psyllids are present. It may not control nymphs on the underside of leaves where the product is not well distributed. Monitor for subsequent pest outbreaks. | |
| Thrips | Agri-Mek SC abamectin | 6 | F | 3.5 fl oz | 12 h | 14 d | Not recommended as a rescue treatment for thrips, but it can help to suppress thrips populations. |
| BioCover MLT mineral oil/petroleum distillate | NC | ND | See Label | 4 h | Apply before thrips are present in large numbers.Organic | ||
| Blackhawk spinosad | 5 | E | 2.25-3.5 oz | 4 h | 7 d | An adjuvant added to spray solution may improve thrips control. | |
| Delegate WG spinetoram | 5 | E | 3-4 oz | 4 h | 7 d | ||
| Entrust SC Naturalyte Insect Control spinosad | 5 | G | 4 h | 7 d | Organic | ||
| Lannate LV methomyl | 1A | G | 1.5-3 pt | 48 h | 6 d | Kills thrips on contact for knockback control. It may also knockback some beneficial, predatory insects. Apply when thrips are active. | |
| Minecto Pro abamectin, cyantraniprole | 6, 28 | F | 10 fl oz | 12 h | 14 d | Minecto Pro is not recommended as a rescue treatment for thrips, but it can help to suppress thrips populations. | |
| Movento HL spirotetramat | 23 | F | 2-2.5 fl oz | 24 h | 7 d | Movento HL can suppress thrips larvae, but it is not recommended as a rescue treatment. | |
| PyGanic Crop Protection EC 5.0 pyrethrins | 3A | ND | 4.5-15.61 fl oz | 12 h | 0 d | Don’t wait until plants are heavily infested. Organic | |
| Radiant SC spinetoram | 5 | E | 6-8 fl oz | 4 h | 7 d | ||
| Torac tolfenpyrad | 21A | G | 17-21 fl oz | 12 h | 14 d | Apply when thrips are present for knockback control. | |
| Two-spotted Spider Mite | Acramite 4SC bifenazate | 20 | E-G | 16 to 24 fl oz | 12 h | 14 d | Apply when spider mites are present. |
| Agri-Mek SC abamectin | 6 | G-F | 1.75-3.5 fl oz | 12 h | 14 d | Apply when mites are first detected. | |
| BioCover MLT mineral oil/petroleum distillate | NC | ND | See Label | 4 h | Apply when spider mites first appear.Organic | ||
| Comite proparagite | 12C | G | 32 to 40 fl oz | 2 d | 14 d | Apply when spider mites are present. Comite has a REI of 2 days, which is long compared to other miticides. | |
| Minecto Pro abamectin, cyantraniprole | 6, 28 | G-F | 5.5 to 10 fl oz | 12 h | 14 d | Apply when mites first appear. Repeat the application after 7+ days if needed to maintain control. | |
| Miteus fenpyroximate | 21A | E | 2 pt | 12 h | 7 d | Apply before mite populations begin to build. Controls all life stages, also stops feeding and egg laying. | |
| Movento HL spirotetramat | 23 | F | 2-2.5 fl oz | 24 h | 7 d | Movento HL is not recommended as a rescue treatment for spider mites, but it may delay or prevent mite outbreaks when it’s applied to control other pests. Do not apply after Oberon (another Group 23) unless an application of an insecticide with a different mode of action is used first. | |
| Oberon 4SC spiromesifen | 23 | E-G | 4-8 oz | 12 h | 7 d | Apply at the first sign of mites before adult populations build up. Controls all mite stages, but juveniles are more susceptible. | |
| Onager, Onager Optek hexythiazox | 10A | G | 16 to 24 fl oz | 12 h | 21 d | Apply at the first sign of mites i.e., apply early in the outbreak cycle. Controls mites via activity on eggs and immatures; it will not control adults, but they won’t lay viable eggs. | |
| Trilogy neem oil | NC | ND | See Label | 4 h | 0 d | Apply when mites first appear. Organic | |
| Nematodes | Pesticide | MOA1 | Efficacy2 | Rate per Acre3 | REI4 | PHI5 | Notes |
|---|---|---|---|---|---|---|---|
| Nematodes (various spp.) | Movento HL spirotetramat | 23 | P | 2-2.5 fl oz | 24 h | 7 d | Movento HL can suppress nematodes, but it is best used in combination with other nematode controls, like fumigant nematicides or a Vydate (oxamyl) program. |
| Root-Knot Nematodes | Vydate C-LV oxamyl | 1A | G | 2.1 pt | 48 h | 7 d | The first foliar treatment should have been applied at crop emergence. Follow with 2.1 pints/A when soil degree-days reach 1440 DD °F, and then 2.1 pints/A on 14-day intervals until 7 days to harvest. |
1Mode of action. NC = not classified..
2 Efficacy ratings denote the relative ability of a pesticide to control its target. The ratings are E = excellent, G = good, F = fair/suppression; P = poor, and ND = no data. Efficacy ratings are based on the inherent toxicity of the pesticide against its target, the likelihood that the target will contact or ingest the product as applied, duration of impact on the target, and undesired effects, such as negative impacts on natural enemies that could lead to future pest outbreaks.
3 Rate per acre per application. Refer to the product label for maximum use rate per season.
4 Reentry interval.
5The minimum pre-harvest interval. Some products do not list PHI.
Note: always read and follow the directions on the pesticide label.
| Insects & Mites | Pesticide | MOA1 | Efficacy2 | Rate per Acre3 | REI4 | PHI5 | Notes |
|---|---|---|---|---|---|---|---|
| Aphid | Actara thiamethoxam | 4A | E | 3 oz | 12 h | 14 d | Apply when aphids are first detected. |
| Asana XL esfenvalerate | 3 | F-P | 5.8 to 9.6 fl oz | 12 h | 7 d | Not particularly effective for aphids. | |
| Assail 70WP acetamiprid | 4A | E | 1-1.7 oz | 12 h | 7 d | Apply when aphids are first detected. | |
| Athena abamectin (avermectin) and bifenthrin | 3, 6 | F-P | 12 h | 21 d | Apply before aphid populations build. Not very effective for aphids, especially compared to most other target pests. | ||
| Aza-Direct azadirachtin | NC | F-P | 1-3.5 pt | 4 h | 0 d | Apply when aphids first appear. It may work too slowly to limit spread of Potato Virus Y, especially when winged (migratory) aphid numbers are high. Does not provide immediate mortality.Organic | |
| BioCover MLT mineral oil/petroleum distillate | NC | F-P | See Label | 4 h | Apply when aphids first appear to limit spread of Potato Virus Y, or before aphids are present in large numbers if the goal is to keep aphid numbers in check and virus spread is not a concern.Organic | ||
| Brigadier bifenthrin, imidacloprid | 3, 4A | E | 3.8-6.14 fl oz | 12 h | 21 d | Apply before aphid populations build. | |
| Carbine 50 WG flonicamid | 29 | E | 2-2.8 oz | 12 h | 7 d | Apply before populations start to build, or before a systemic aphicide treatment breaks down. Rapid feeding cessation, so it is a good choice to limit spread of Potato Virus Y. | |
| Cormoran novaluron, acetamidiprid | 15, 4A | G | 9-12 fl oz | 12 h | 14 d | Apply when aphids are first detected. The novaluron in Cormoran is not very effective for aphids. | |
| Dimethoate 400 EC dimethoate | 1B | G | 0.5-1 pt | 48 h | 0 d | It will knockback aphid populations. | |
| Exirel cyantraniliprole | 28 | G | 13.5-20.5 fl oz | 12 h | 7 d | Apply before aphid populations build. Rapid anti-feeding activity helps to limit spread of viruses, like Potato Virus Y, that spread quickly. | |
| Fulfill pymetrozine | 9B | E | 2.75-5.5 oz | 12 h | 14 d | Apply before populations start to build, or before a systemic aphicide treatment breaks down. Rapid feeding cessation, and aphids die 3-5 days later. A good choice to limit spread of Potato Virus Y. Apply 5.5 oz/A if also targeting psyllids. | |
| Lannate LV methomyl | 1A | E | 1.5 to 3.0 pt | 48 h | 6 d | It will knockback aphids. Lannate LV is best used late season to knockback multiple pests. | |
| Leverage 360 beta-cyfluthrin, imidacloprid | 3, 4 | E-G | 2.8 fl oz | 12 h | 7 d | Apply before aphid populations build. | |
| Minecto Pro abamectin, cyantraniprole | 6, 28 | G | 10 fl oz | 12 h | 14 d | Apply before aphid populations build. Rapid anti-feeding activity helps to limit spread of viruses, like Potato Virus Y, that spread quickly. The abamectin in Minecto Pro is not very effective for aphids. | |
| Neemix 4.5 IGR azadirachtin | NC | F-P | 5-7 fl oz | 4 h | 0 d | Apply when aphids first appear. It may work too slowly to limit spread of Potato Virus Y, especially when winged (migratory) aphid numbers are high. Does not provide immediate mortality.Organic | |
| PyGanic Crop Protection EC 5.0 pyrethrins | 3A | F-P | 4.5-15.61 fl oz | 12 h | 0 d | Apply when insects first appear. Don’t wait until plants are heavily infested. It may work too slowly to limit spread of Potato Virus Y, especially when winged (migratory) aphid numbers are high. Organic | |
| Sefina afidopyropen | 9D | E | 3 fl oz | 12 h | 7 d | Apply at the first sign of aphids. Anti-feeding activity should limit spread of potato viruses. | |
| Sivanto 200 SL flupyradifurone | 4D | E | 7-10.5 fl oz | 4 h | 7 d | Early-to-mid season application will cover several migrating pests. Apply before populations build. Rapid anti-feeding activity helps to limit spread of viruses, like Potato Virus Y, that spread quickly. Use the highest allowed rate when aphid pressure is high, foliage is dense, or with aerial application. | |
| Torac tolfenpyrad | 21A | G | 17-21 fl oz | 12 h | 14 d | Apply when aphids are present for knockback control with anti-feeding. | |
| Transform WG sulfoxaflor | 4C | E | 24 h | 7 d | Apply when aphids are present. | ||
| Trilogy neem oil | NC | F-P | See Label | 4 h | 0 d | Apply before aphids are present in large numbers if the goal is to keep aphid numbers in check and virus spread is not a concern. Apply when aphids first appear to limit virus spread, however it may work too slowly to limit spread of Potato Virus Y, especially when winged (migratory) aphid numbers are high. Does not provide immediate mortality.Organic | |
| Colorado Potato Beetle | Actara thiamethoxam | 4A | E | 1.5-3 oz | 12 h | 14 d | Apply when about 50% of the eggs have hatched larvae are small. |
| Agri-Mek SC abamectin | 6 | G | 1.75-3.5 fl oz | 12 h | 14 d | Apply when 50% of eggs have hatched and larvae are small. If two applications are needed, limit them to a single CPB generation. | |
| Asana XL esfenvalerate | 3 | G | 5.8 to 9.6 fl oz | 12 h | 7 d | Apply at 50% egg hatch while larvae are small. | |
| Assail 70WP acetamiprid | 4A | E | 0.6-1.7 oz | 12 h | 7 d | Apply when about 50% of the eggs have hatched larvae are small. | |
| Athena abamectin (avermectin) and bifenthrin | 3, 6 | G | 7 to 17 fl oz | 12 h | 21 d | Apply at 50% egg hatch when larvae are small. | |
| Avaunt Insecticide indoxacarb | 22 | E-G | 3.5-6 oz | 12 h | 7 d | Apply at 50% egg hatch when larvae are small. | |
| Aza-Direct azadirachtin | NC | F | 1-3.5 pt | 4 h | 0 d | Apply at 30% egg hatch when larvae are very small. If needed, follow-up with 2-3 applications at 7-10 day intervals.Organic | |
| Baythroid XL beta-cyfluthrin | 3 | G | 1.6-2.8 fl oz | 12 h | 0 d | Apply at 50% egg hatch while larvae are small. | |
| Blackhawk spinosad | 5 | G | 1.7-3.3 oz | 4 h | 7 d | Apply when about 50% of the eggs have hatched and most larvae are small. Do not apply to consecutive generations of CPB. | |
| Brigade 2EC bifenthrin | 3 | G | 2.1-6.4 fl oz | 12 h | 21 d | CPBs are on the label but not in the potato section. Apply at 50% egg hatch while larvae are small. | |
| Brigadier bifenthrin, imidacloprid | 3, 4A | E | 4.8-6.14 fl oz | 12 h | 21 d | Apply at 50% eggs hatch when larvae are small. | |
| Calantha ledprona | 35 | E | 12-16 fl oz | 4 hr | Apply at 25% egg hatch. This product will work on all life stages (except eggs) but is most effective against small larvae (up to 1/4 inch). | ||
| Cormoran novaluron, acetamidiprid | 15, 4A | E | 6-12 fl oz | 12 h | 14 d | Apply at 50% eggs hatch when larvae are small. Don’t apply to successive generations of CPB. | |
| Delegate WG spinetoram | 5 | G | 2.25-4 oz | 4 h | 7 d | Apply at 50% egg hatch when larvae are small. | |
| Entrust SC Naturalyte Insect Control spinosad | 5 | G | 4 h | 7 d | Apply at 30% egg hatch when larvae are very small. Organic | ||
| Exirel cyantraniliprole | 28 | E | 5-15.5 fl oz | 12 h | 7 d | Apply at 50% egg hatch when larvae are small. Do not apply more than once via chemigation for CPBs. | |
| Harvanta 50SL cyclaniliprole | 28 | E | 5.5-10.9 fl oz | 4 h | 7 d | See Section 2(ee) Recommendation. Apply at 50% eggs hatch when larvae are small. | |
| Imidan 70-W phosmet | 1B | G | 1.33 lb | 5 d | 7 d | Apply when about 50% of eggs have hatched and larvae are small for knockback control. | |
| Lannate LV methomyl | 1A | G | 1.5-3 pt | 48 h | 6 d | The label doesn’t mention CPBs, but applications made to target other pests will control beetles and larvae. It will also knockback some predator insects. | |
| Leverage 360 beta-cyfluthrin, imidacloprid | 3, 4 | E-G | 2.8 fl oz | 12 h | 7 d | Apply at 50% eggs hatch when larvae are small. | |
| Minecto Pro abamectin, cyantraniprole | 6, 28 | E | 5.5 to 10 fl oz | 12 h | 14 d | Apply at 50% egg hatch when larvae are small. Don’t apply more than twice to a generation of CPB, or within any 30-day period. | |
| Mustang Maxx zeta-cypermethrin | 3 | G-F | 3.2-4 fl oz | 12 h | 1 d | Apply at 50% egg hatch while larvae are small. | |
| Neemix 4.5 IGR azadirachtin | NC | F | 4-10 fl oz | 4 h | 0 d | Apply at 30% egg hatch when larvae are very small. If needed, follow-up with 2-3 applications at 7-10 day intervals.Organic | |
| PyGanic Crop Protection EC 5.0 pyrethrins | 3A | F | 4.5-15.61 fl oz | 12 h | 0 d | Apply at 30% egg hatch when larvae are first instars. Don’t wait until plants are heavily infested. Don’t apply to consecutive generations of CPB.Organic | |
| Radiant SC spinetoram | 5 | G | 4.5-8 fl oz | 4 h | 7 d | Apply at 50% egg hatch when larvae are small. | |
| Rimon novaluron | 15 | G | 6-12 fl oz | 12 h | 14 d | Apply at 50% egg hatch when larvae are small. Use higher rates and higher spray volumes when larvae are large. | |
| Sivanto 200 SL flupyradifurone | 4D | G | 10.5-14 fl oz | 4 h | 7 d | Apply at 50% egg hatch when larvae are small. | |
| Torac tolfenpyrad | 21A | E | 14-21 fl oz | 12 h | 14 d | Apply when about 50% of the eggs have hatched for best results. Rapid anti-feeding activity. It controls eggs, larvae, and adults. | |
| Trident Biological Insecticide Bacillus thuringiensis ssp. | 11 | ND | 3-6 qt | 4 h | 0 d | Apply as soon as eggs begin to hatch. Larvae stop eating within a few hours, and they die within 2-4 days. Organic | |
| Vantacor chlorantraniliprole | 28 | E | 1.2-2.5 fl oz | 4 h | 14 d | Apply when about 50% of the eggs have hatched and most larvae are small. Don’t apply more than once via chemigation for CPBs. | |
| Warrior II lambda-cyhalothrin | 3 | G-F | 1.28-1.92 fl oz | 24 h | 7 d | Apply at 50% egg hatch while larvae are small. | |
| Potato Psyllid | Actara thiamethoxam | 4A | G (a) | 1.5-3 oz | 12 h | 14 d | The label does not mention potato psyllids, but applications targeting other pests can control them. Apply when adult psyllids are migrating into the field. |
| Agri-Mek SC abamectin | 6 | E (n+a) | 1.75-3.5 fl oz | 12 h | 14 d | Apply when psyllids are present, especially if eggs are hatching. It will control all life stages and is a good choice when eggs and nymphs are present. Translaminar, so it will control nymphs on the underside of leaves. | |
| Asana XL esfenvalerate | 3 | G (n+a) | 2.9 to 5.8 fl oz | 12 h | 7 d | Apply when adult psyllids are migrating into the field. | |
| Assail 70WP acetamiprid | 4A | G (a) | 0.6-1.7 oz | 12 h | 7 d | The label does not mention potato psyllids, but applications targeting other pests can control them. Apply when adult psyllids are migrating into the field. | |
| Athena abamectin (avermectin) and bifenthrin | 3, 6 | G (n+a) | 10 to 17 fl oz | 12 h | 21 d | Apply when psyllids are present. | |
| Aza-Direct azadirachtin | NC | F | 1-3.5 pt | 4 h | 0 d | Apply when adults psyllids are depositing eggs and/or when nymphs are present. Organic | |
| Baythroid XL beta-cyfluthrin | 3 | G (n+a) | 1.6-2.8 fl oz | 12 h | 0 d | Apply when psyllids are present. | |
| BioCover MLT mineral oil/petroleum distillate | NC | ND | See Label | 4 h | Apply before psyllids colonize the field (i.e., before nymphs develop into second generation adults) to limit spread of zebra chip disease. Organic | ||
| Blackhawk spinosad | 5 | G (n) | See Label | 4 h | 7 d | Psyllids are not on the label, but applications targeting other pests may control psyllid nymphs. No adult activity. Translaminar, so it should get to the nymphs on the underside of leaves. | |
| Brigade 2EC bifenthrin | 3 | G (n+a) | 2.1 to 6.4 fl oz | 12 h | 21 d | Apply when adult psyllids are migrating into the field. | |
| Brigadier bifenthrin, imidacloprid | 3, 4A | G (n+a) | 4.8-6.14 fl oz | 12 h | 21 d | Apply when adult psyllids are migrating into the field. It should also control nymphs. | |
| Carbine 50 WG flonicamid | 29 | E (n+a) | 2-2.8 oz | 12 h | 7 d | Apply when adult psyllids are migrating into the field and are depositing eggs. Rapid feeding cessation, so it is a good choice to limit zebra chip spread. Translaminar, so it will control nymphs on the underside of leaves, but not systemic. | |
| Cormoran novaluron, acetamidiprid | 15, 4A | G (n+a) | 12 fl oz | 12 h | 14 d | Apply when eggs are hatching/nymphs are present. It should control all life stages. | |
| Delegate WG spinetoram | 5 | G (n) | 3-4 oz | 4 h | 7 d | Apply when psyllids have deposited eggs that are hatching. It will not control adults. | |
| Dimethoate 400 EC dimethoate | 1B | G (a) | See Label | 48 h | 0 d | The label doesn’t mention psyllids, but applications made to target other pests will knockback adult psyllids. | |
| Entrust SC Naturalyte Insect Control spinosad | 5 | G (n) | See Label | 4 h | 7 d | The label does not mention psyllids, but it should provide some control. Apply when psyllid nymphs are present. Translaminar, so it should control nymphs on the underside of leaves. Organic | |
| Exirel cyantraniliprole | 28 | E (a) | 13.5-20.5 fl oz | 12 h | 7 d | Apply before psyllid populations build. Target the adult life stage. Rapid anti-feeding activity will also help to limit spread of zebra chip disease. | |
| Fulfill pymetrozine | 9B | G (n+a) | 5.5 oz | 12 h | 14 d | Apply when adults are migrating into the field and are depositing eggs. Translaminar, so it should control nymphs on the underside of leaves, but not systemic. | |
| Imidan 70-W phosmet | 1B | G (a) | 1.33 lb | 5 d | 7 d | It can knockback adult psyllid populations. | |
| Lannate LV methomyl | 1A | E | See Label | 48 h | 6 d | The label doesn’t mention psyllids, but applications made to target other pests will knockback adult psyllids. Lannate LV is best used late season to knockback multiple pests. | |
| Leverage 360 beta-cyfluthrin, imidacloprid | 3, 4 | E-G (n+a) | 2.8 fl oz | 12 h | 7 d | Apply when adult psyllids are migrating into the field. It should also control nymphs. | |
| Minecto Pro abamectin, cyantraniprole | 6, 28 | E (n+a) | 10 fl oz | 12 h | 14 d | Apply when adults are migrating into the field, especially if they are depositing eggs. Rapid anti-feeding activity will also help to limit spread of zebra chip disease. Controls all life stages. Translaminar, so it will control nymphs on the underside of leaves. | |
| Miteus fenpyroximate | 21A | E (n+a) | 2 pt | 12 h | 7 d | Apply when adults have migrated into the field and are depositing eggs. Controls all life stages, also stops feeding and egg laying. | |
| Mustang Maxx zeta-cypermethrin | 3 | G (n+a) | See Label | 12 h | 1 d | Psyllids are on the label but not in the potato section. Apply when psyllids are migrating into the field. | |
| Neemix 4.5 IGR azadirachtin | NC | F | 7-16 fl oz | 4 h | 0 d | Apply when adults psyllids are depositing eggs and/or when nymphs are present. Organic | |
| Oberon 4SC spiromesifen | 23 | E-G (n) | 4-8 oz | 12 h | 7 d | Apply to control psyllid eggs and nymphs. Translaminar, so it should control nymphs on the underside of leaves. It will not control adults. | |
| Onager, Onager Optek hexythiazox | 10A | G (n) | 16 to 24 fl oz | 12 h | 21 d | Apply to control psyllid eggs and nymphs. Translaminar, so it should control nymphs on the underside of leaves. It will not control adults. | |
| PyGanic Crop Protection EC 5.0 pyrethrins | 3A | ND | 4.5-15.61 fl oz | 12 h | 0 d | Apply when psyllids first appear. Don't wait until plants are heavily infested.Organic | |
| Radiant SC spinetoram | 5 | G (n) | 6-8 fl oz | 4 h | 7 d | Apply when psyllids have deposited eggs that are hatching. It will not control adults. | |
| Sefina afidopyropen | 9D | G (n+a) | 14 fl oz | 12 h | 7 d | Apply when adults are migrating into the field, especially if they are depositing eggs. Rapid anti-feeding activity will also help to limit spread of zebra chip disease. Controls all life stages. Translaminar, so it will control nymphs on the underside of leaves. | |
| Torac tolfenpyrad | 21A | G (n+a) | 17-21 fl oz | 12 h | 14 d | Apply when psyllids are present for knockback control with anti-feeding. Torac can control all life stages. No systemic or translaminar activity, so it may not always reach nymphs on the underside of leaves. | |
| Trilogy neem oil | NC | ND | See Label | 4 h | 0 d | Apply when adults psyllids are depositing eggs and/or when nymphs are present. Organic | |
| Warrior II lambda-cyhalothrin | 3 | G (n+a) | 1.28-1.92 fl oz | 24 h | 7 d | Apply when psyllids are migrating into the field. | |
| Tuberworm | Asana XL esfenvalerate | 3 | E | 2.9-9.6 fl oz | 12 h | 7 d | Target PTW larvae feeding in the canopy in the weeks prior to vine desiccation or harvest. PHI is 7-days. Thorough coverage of foliage is essential. Use high water volumes with ground or aerial applications to ensure the product is well distributed in the foliage. |
| Athena abamectin (avermectin) and bifenthrin | 3, 6 | G | 7-17 fl oz | 12 h | 21 d | Apply in the weeks prior to vine desiccation or harvest when larvae are feeding in the foliage. The PHI is 20-days. The avermectin in Athena will not improve control of tuberworm. Thorough coverage of foliage is essential. | |
| Avaunt Insecticide indoxacarb | 22 | G | 3-6 oz | 12 h | 7 d | Target PTW larvae feeding in the canopy in the weeks prior to vine desiccation or harvest. PHI is 7-days. Use a MSO adjuvant to increase translaminar movement. | |
| Aza-Direct azadirachtin | NC | F | 1-3.5 pt | 4 h | 0 d | Target PTW larvae feeding in the canopy in the weeks before vine desiccation or harvest. If needed, follow-up with 2-3 applications at 7-10 day intervals.Organic | |
| Baythroid XL beta-cyfluthrin | 3 | E | 1.6-2.8 fl oz | 12 h | 0 d | Target PTW larvae feeding in the canopy in the weeks prior to vine desiccation or harvest. Baythroid XL has a 0-day PHI. | |
| Brigade 2EC bifenthrin | 3 | G-F | 2.1 to 6.4 fl oz | 12 h | 21 d | Tuberworm is not on the label but applications targeting other pests can control them. Apply in the weeks prior to vine desiccation or harvest when larvae are feeding in the foliage. The PHI is 21-days. Thorough coverage of foliage is essential. Use high water volumes with ground or aerial applications to ensure that the product is well distributed in the foliage. Use at least 0.5 inches of water per acre for chemigation. | |
| Brigadier bifenthrin, imidacloprid | 3, 4A | G | 4.8-6.14 fl oz | 12 h | 21 d | Target PTW larvae feeding in the canopy in the weeks prior to vine desiccation or harvest. PHI is 21-days. Minimum re-treatment interval is 7-days. | |
| Cormoran novaluron, acetamidiprid | 15, 4A | G-F | 6-12 fl oz | 12 h | 14 d | Target PTW larvae feeding in the canopy in the weeks prior to vine desiccation or harvest. PHI is 14-days. | |
| Entrust SC Naturalyte Insect Control spinosad | 5 | G | See Label | 4 h | 7 d | The label does not mention tuberworm, but it should provide some control. Target PTW larvae feeding in the canopy in the weeks prior to vine desiccation or harvest. PHI is 7-days. A spray adjuvant (OMRI-approved emulsified crop oil or methylated crop oil plus organosilicone) may improve control. Organic | |
| Exirel cyantraniliprole | 28 | E | 7-13.5 fl oz | 12 h | 7 d | Target PTW larvae feeding in the canopy in the weeks prior to vine desiccation or harvest. PHI is 7-days. For best results, chemigate in 0.1-to-0.2-acre inches of water and add MSO at 12 to 16 fl. oz per acre. Foliar sprays may not provide adequate control of larvae in the mid to lower canopy. | |
| Imidan 70-W phosmet | 1B | F | 1.33 lb | 5 d | 7 d | Target PTW larvae feeding in the canopy in the weeks prior to vine desiccation or harvest for knockback control. PHI is 7-days. Can be re-applied after 10 days. | |
| Lannate LV methomyl | 1A | E | 1.5-3 pt | 48 h | 6 d | Target PTW larvae feeding in the canopy in the weeks prior to vine desiccation or harvest. PHI is 6-days. Expect only 5-7 days of residual activity. | |
| Leverage 360 beta-cyfluthrin, imidacloprid | 3, 4 | E | 2.8 fl oz | 12 h | 7 d | Target PTW larvae feeding in the canopy in the weeks prior to vine desiccation or harvest. PHI is 7-days. | |
| Minecto Pro abamectin, cyantraniprole | 6, 28 | E | 5.5 to 10 fl oz | 12 h | 14 d | Target PTW larvae feeding in the canopy in the weeks prior to vine desiccation or harvest. PHI is 14-days. Repeat the application after 7+ days if needed to maintain control. | |
| Mustang Maxx zeta-cypermethrin | 3 | E | fl oz | 12 h | 1 d | Tuberworm is not on the label but applications targeting other pests can control them. Target PTW larvae feeding in the canopy in the weeks prior to vine desiccation or harvest. PHI is 1-day. Ground or air application to dense canopies may not provide sufficient coverage or lower leaves, use sufficient water carrier. | |
| Neemix 4.5 IGR azadirachtin | NC | F | 7-16 fl oz | 4 h | 0 d | Target PTW larvae feeding in the canopy in the weeks before vine desiccation or harvest. If needed, follow-up with 2-3 applications at 7-10 day intervals.Organic | |
| Rimon novaluron | 15 | F | 6-12 fl oz | 12 h | 14 d | Target PTW larvae feeding in the canopy in the weeks prior to vine desiccation or harvest. PHI is 14-days. | |
| Vantacor chlorantraniliprole | 28 | E | 1.2-2.5 fl oz | 4 h | 14 d | Target PTW larvae feeding in the canopy in the weeks prior to vine desiccation or harvest. PHI is 14 days. For best results, chemigate in 0.1-to-0.2-acre inches of water and add MSO at 12 to 16 fl. oz. per acre. Foliar sprays may not provide adequate control of larvae in the mid to lower canopy. | |
| Warrior II lambda-cyhalothrin | 3 | E | 1.28-1.92 fl oz | 24 h | 7 d | Target PTW larvae feeding in the canopy in the weeks prior to vine desiccation or harvest. PHI is 7-days. Ground or air application to dense canopies may not provide sufficient coverage or lower leaves, use sufficient water carrier. Use only 0.1 to 0.2-inches of water with chemigation. | |
| Two-spotted Spider Mite | Acramite 4SC bifenazate | 20 | E-G | 16 to 24 fl oz | 12 h | 14 d | Apply when spider mites are present. |
| Agri-Mek SC abamectin | 6 | G-F | 1.75-3.5 fl oz | 12 h | 14 d | Apply when mites are first detected. | |
| Athena abamectin (avermectin) and bifenthrin | 3, 6 | G-F | 10-17 fl oz | 12 h | 21 d | Apply when mites are first detected, but only if it’s about 4 weeks to vine kill or harvest. | |
| BioCover MLT mineral oil/petroleum distillate | NC | ND | See Label | 4 h | Apply when spider mites first appear.Organic | ||
| Comite proparagite | 12C | G | 32 to 40 fl oz | 2 d | 14 d | Apply when spider mites are present. Comite has a REI of 2 days, which is long compared to other miticides. | |
| Minecto Pro abamectin, cyantraniprole | 6, 28 | G-F | 5.5 to 10 fl oz | 12 h | 14 d | Apply when mites first appear. Repeat the application after 7+ days if needed to maintain control. | |
| Miteus fenpyroximate | 21A | E | 2 pt | 12 h | 7 d | Apply before mite populations begin to build. Controls all life stages, also stops feeding and egg laying. | |
| Oberon 4SC spiromesifen | 23 | E-G | 4-8 oz | 12 h | 7 d | Apply at the first sign of mites before adult populations build up. Controls all mite stages, but juveniles are more susceptible. | |
| Onager, Onager Optek hexythiazox | 10A | G | 16 to 24 fl oz | 12 h | 21 d | Apply at the first sign of mites i.e., apply early in the outbreak cycle. Controls mites via activity on eggs and immatures; it will not control adults, but they won’t lay viable eggs. | |
| Trilogy neem oil | NC | ND | See Label | 4 h | 0 d | Apply when mites first appear. Organic |
| Nematodes | Pesticide | MOA1 | Efficacy2 | Rate per Acre3 | REI4 | PHI5 | Notes |
|---|---|---|---|---|---|---|---|
| Root-Knot Nematodes | Vydate C-LV oxamyl | 1A | G | 2.1 pt | 48 h | 7 d | Foliar treatments, using 2.1 pints/A, should be applied via chemigation on 14-day intervals until 7 days to harvest. But do not exceed 19.2 pints/A total for the season. |
1Mode of action. NC = not classified..
2 Efficacy ratings denote the relative ability of a pesticide to control its target. The ratings are E = excellent, G = good, F = fair/suppression; P = poor, and ND = no data. Efficacy ratings are based on the inherent toxicity of the pesticide against its target, the likelihood that the target will contact or ingest the product as applied, duration of impact on the target, and undesired effects, such as negative impacts on natural enemies that could lead to future pest outbreaks.
3 Rate per acre per application. Refer to the product label for maximum use rate per season.
4 Reentry interval.
5The minimum pre-harvest interval. Some products do not list PHI.
Note: always read and follow the directions on the pesticide label.
1Mode of action. NC = not classified.. Fall Field Preparation
Nematodes
Pesticide
MOA1
Efficacy2
Rate per Acre3
REI4
PHI5
Notes
Nematodes (various spp.) Telone II
dichloropropene11 E-G
See Label 5 d Supplemental labeling for Telone II provides specific instructions for root knot and stubby root nematodes. Root Lesion Nematodes Telone II
dichloropropene11 E-G 9-25 gal 5 d Apply by shanking in at ≥18-inch depth. Use 9-12 gal/A for mineral soils, and 25 gal/A for muck. Soil temperature must be between 40°F and 80°F. Root-Knot Nematodes Telone II
dichloropropene11 E-G 15-25 gal 5 d Columbia root knot nematodes: use 20 gal/A for mineral soil or 25 gal/A for muck. Northern root knot nematodes: use 15 gal/A for mineral soil or 18 gal/A for muck. Shank-in at 18-inch depth or more. Soil temperature must be between 40°F and 80°F. Stubby Root Nematodes Telone II
dichloropropene11 E-G 20-25 gal 5 d Use 20 gal/A for mineral soil or 25 gal/A for muck. Shank-in at 18-inch depth or more. Soil temperature must be between 40°F and 80°F.
Insects & Mites
Pesticide
MOA1
Efficacy2
Rate per Acre3
REI4
PHI5
Notes
Wireworms Telone II
dichloropropene11 G-F 20-25 gal 5 d Apply when wireworms are present. Soil temperature at application depth must be > 50°F or wireworms may be too deep. Use 20 gal/A for mineral soil or 25 gal/A for muck. Shank-in at 14-inch depth or more, or at least 18-inch depth if also targeting nematodes.
2 Efficacy ratings denote the relative ability of a pesticide to control its target. The ratings are E = excellent, G = good, F = fair/suppression; P = poor, and ND = no data. Efficacy ratings are based on the inherent toxicity of the pesticide against its target, the likelihood that the target will contact or ingest the product as applied, duration of impact on the target, and undesired effects, such as negative impacts on natural enemies that could lead to future pest outbreaks.
3 Rate per acre per application. Refer to the product label for maximum use rate per season.
4 Reentry interval.
5The minimum pre-harvest interval. Some products do not list PHI.
Note: always read and follow the directions on the pesticide label.
Nematodes (various spp.)
1 Product Choices
Applications and Notes »
Root Lesion Nematodes
1 Product Choices
Applications and Notes »
Root-Knot Nematodes
1 Product Choices
Applications and Notes »
Stubby Root Nematodes
1 Product Choices
Applications and Notes »
Wireworms
1 Product Choices
Applications and Notes »
