Colorado potato beetles (CPBs) overwinter as adult beetles in the soil (about 8-16 inches deep) in the previous year's potato fields. They emerge in the spring to feed, mate, and lay eggs (up to 1,000 eggs per female in masses of 20-50 eggs). Larvae hatch from eggs, feed and grow through four larval instars, and then drop to the ground to pupate and start the cycle over again. They can have up to three generations in a year.
Damage: Adults and larvae can cause complete defoliation and nearly complete crop loss if allowed to reproduce unchecked. Larvae are more voracious than adults.
Scouting: CPBs are easy to scout. Look for them on plants near the edge of potato fields, and on volunteer potatoes in other crops (volunteer potatoes can serve as important refuge for CPBs and a source of delayed infestations). Adult beetles are about 0.5-inches long, with an orange-and-black head and yellow-and-black striped wings. Once you find adults, look for egg masses. Their oval eggs are yellow-to-orange in color. Scout often for larvae once you find eggs. Newly hatched larvae have black heads and reddish-orange abdomens. As they age, they get bigger and lighter in color with distinct black dots on their sides.
Stage of Development: Planting to Pre-emergence | ||||||
---|---|---|---|---|---|---|
Pesticide | MOA1 | Efficacy2 | Rate per Acre3 | REI4 | PHI5 | Notes |
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 But if larvae are found on treated plants, then the product residual is probably no longer active. | |
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 But if larvae are found on treated plants, then the product residual is probably no longer active.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 But if larvae are found on treated plants, then the product residual is probably no longer active. | |
Thimet 20-G SmartBox phorate | 1 | G-F | See Label | 72 h | 90 d | Expect only 50 days of residual control. |
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.
Stage of Development: Emergence to Row Closure | ||||||
---|---|---|---|---|---|---|
Pesticide | MOA1 | Efficacy2 | Rate per Acre3 | REI4 | PHI5 | Notes |
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. |
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. |
Lannate LV methomyl | 1A | G | 1.5-3.0 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. |
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. |
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. |
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. |
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. |
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. |
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. |
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. |
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. |
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. |
Mustang Maxx zeta-cypermethrin | 3 | G | 3.2-4.0 fl oz | 12 h | 1 d | Apply at 50% egg hatch while larvae are small, but only if it’s before mid-June. |
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. |
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. |
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. |
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. |
Sivanto 200 SL flupyradifurone | 4D | G | 10.5-14 fl oz | 4 h | 7 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. |
Radiant SC spinetoram | 5 | G | 4.5-8 fl oz | 4 h | 7 d | Apply at 50% egg hatch when larvae are small. |
Delegate WG spinetoram | 5 | G | 2.25-4 oz | 4 h | 7 d | Apply at 50% egg hatch when 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. |
Actara thiamethoxam | 4A | E | 1.5-3 oz | 12 h | 14 d | Apply when about 50% of the eggs have hatched larvae are small. |
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. |
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. |
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. |
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. |
Entrust SC Naturalyte Insect Control spinosad | 5 | G | 4 h | 7 d | Apply at 30% egg hatch when larvae are very 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. |
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. |
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. |
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. |
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). | |
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.
Stage of Development: Tuber Bulking | ||||||
---|---|---|---|---|---|---|
Pesticide | MOA1 | Efficacy2 | Rate per Acre3 | REI4 | PHI5 | Notes |
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. |
Lannate LV methomyl | 1A | G | 1.5-3.0 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. |
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. |
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. |
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. |
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. |
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. |
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. |
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. |
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. |
Mustang Maxx zeta-cypermethrin | 3 | P | 3.2-4.0 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. |
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. |
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. |
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. |
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. |
Sivanto 200 SL flupyradifurone | 4D | G | 10.5-14 fl oz | 4 h | 7 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. |
Radiant SC spinetoram | 5 | G | 4.5-8 fl oz | 4 h | 7 d | Apply at 50% egg hatch when larvae are small. |
Delegate WG spinetoram | 5 | G | 2.25-4 oz | 4 h | 7 d | Apply at 50% egg hatch when 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. |
Actara thiamethoxam | 4A | E | 1.5-3 oz | 12 h | 14 d | Apply when about 50% of the eggs have hatched larvae are small. |
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. |
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. |
Entrust SC Naturalyte Insect Control spinosad | 5 | G | 4 h | 7 d | Apply at 30% egg hatch when larvae are very 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. |
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. |
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. |
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. |
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. |
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. |
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). | |
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.
Stage of Development: Late Tuber Bulking to Harvest | ||||||
---|---|---|---|---|---|---|
Pesticide | MOA1 | Efficacy2 | Rate per Acre3 | REI4 | PHI5 | Notes |
Lannate LV methomyl | 1A | G | 1.5-3.0 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. |
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. |
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. |
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. |
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. |
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. |
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. |
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. |
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. |
Sivanto 200 SL flupyradifurone | 4D | G | 10.5-14 fl oz | 4 h | 7 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. |
Radiant SC spinetoram | 5 | G | 4.5-8 fl oz | 4 h | 7 d | Apply at 50% egg hatch when larvae are small. |
Delegate WG spinetoram | 5 | G | 2.25-4 oz | 4 h | 7 d | Apply at 50% egg hatch when 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. |
Actara thiamethoxam | 4A | E | 1.5-3 oz | 12 h | 14 d | Apply when about 50% of the eggs have hatched larvae are small. |
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. |
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. |
Entrust SC Naturalyte Insect Control spinosad | 5 | G | 4 h | 7 d | Apply at 30% egg hatch when larvae are very 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. |
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. |
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. |
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. |
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. |
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. |
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. |
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. |
Mustang Maxx zeta-cypermethrin | 3 | G-F | 3.2-4.0 fl oz | 12 h | 1 d | Apply at 50% egg hatch while 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. |
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. |
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). | |
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.
Stage of Development: Preplant | ||||||
---|---|---|---|---|---|---|
Pesticide | MOA1 | Efficacy2 | Rate per Acre3 | REI4 | PHI5 | Notes |
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. | |
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. |
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.