Colorado Potato Beetle(Leptinotarsa decemlineata)


General Description

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.

Registered Pesticides

Stage of Development: Planting to Pre-emergence
Pesticide MOA1 Efficacy2 Rate per Acre3 REI4 PHI5 Notes
Platinum 75 SG
thiamethoxam
4AE1.66-2.67 oz12 hDon'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 But if larvae are found on treated plants, then the product residual is probably no longer active.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
4AE5.7-8.7 fl oz12 hDon’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 But if larvae are found on treated plants, then the product residual is probably no longer active.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
4AE9-12 fl oz12 hDon’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 But if larvae are found on treated plants, then the product residual is probably no longer active.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
1G-F See Label72 h90 dExpect only 50 days of residual control.

Stage of Development: Planting to Pre-emergence

Colorado Potato Beetle

0 Product Choices

4 Notes

Applications and Notes »  Pest Info »

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
1AG0.5-2.1 pt48 h7 dApply when 50% of eggs have hatched and most larvae are small. Expect 7-14 days of residual control.
Admire Pro (foliar)
imidacloprid
4AG1.3 fl oz12 h7 dApply to foliage when about 50% of the eggs have hatched larvae are small.
Lannate LV
methomyl
1AG1.5-3.0 pt48 h6 dThe 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
5G1.7-3.3 oz4 h7 dApply when about 50% of the eggs have hatched and most larvae are small. Do not apply to consecutive generations of CPB.
Vantacor
chlorantraniliprole
28E1.2-2.5 fl oz4 h14 dApply 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
15G6-12 fl oz12 h14 dApply at 50% egg hatch when larvae are small. Use higher rates and higher spray volumes when larvae are large.
Asana XL
esfenvalerate
3G5.8-9.6 fl oz12 h7 dApply at 50% egg hatch while larvae are small, but only if it’s before mid-June.
Agri-Mek SC
abamectin
6G1.75-3.5 fl oz12 h14 dApply 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
3G2.1-6.4 fl oz12 h21 dCPBs 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, 6G7-17 fl oz12 h21 dApply at 50% egg hatch when larvae are small, but only if it’s before mid-June.
Baythroid XL
beta-cyfluthrin
3G1.6-2.8 fl oz12 h0 dApply at 50% egg hatch while larvae are small, but only if it’s before mid-June.
Warrior II
lambda-cyhalothrin
3G1.28-1.92 fl oz24 h7 dApply at 50% egg hatch while larvae are small, but only if it’s before mid-June.
Mustang Maxx
zeta-cypermethrin
3G3.2-4.0 fl oz12 h1 dApply at 50% egg hatch while larvae are small, but only if it’s before mid-June.
Imidan 70-W
phosmet
1BG-F1.33 lb5 d7 dApply when about 50% of eggs have hatched and larvae are small for knockback control.
Torac
tolfenpyrad
21AE14-21 fl oz12 h14 dApply when about 50% of the eggs have hatched for best results. Rapid anti-feeding activity. It controls eggs, larvae, and adults.
Exirel
cyantraniliprole
28E5-15.5 fl oz12 h7 dApply at 50% egg hatch when larvae are small. Do not apply more than once via chemigation for CPBs.
Minecto Pro
abamectin, cyantraniprole
6, 28E5.5 to 10 fl oz12 h14 dApply 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
4DG10.5-14 fl oz4 h7 dApply at 50% egg hatch when larvae are small.
Avaunt Insecticide
indoxacarb
22E-G3.5-6 oz12 h7 dApply at 50% egg hatch when larvae are small.
Radiant SC
spinetoram
5G4.5-8 fl oz4 h7 dApply at 50% egg hatch when larvae are small.
Delegate WG
spinetoram
5G2.25-4 oz4 h7 dApply at 50% egg hatch when larvae are small.
Assail 70WP
acetamiprid
4AE0.6-1.7 oz12 h7 dApply when about 50% of the eggs have hatched larvae are small.
Actara
thiamethoxam
4AE1.5-3 oz12 h14 dApply when about 50% of the eggs have hatched larvae are small.
Harvanta 50SL
cyclaniliprole
28E5.5-10.9 fl oz4 h7 dSee Section 2(ee) Recommendation. Apply at 50% eggs hatch when larvae are small.
Leverage 360
beta-cyfluthrin, imidacloprid
3, 4G2.8 fl oz12 h7 dApply at 50% eggs hatch when larvae are small, but only if it’s before mid-June.
Brigadier
bifenthrin, imidacloprid
3, 4AG4.8-6.14 fl oz12 h21 dApply at 50% eggs hatch when larvae are small, but only if it’s before mid-June.
Cormoran
novaluron, acetamidiprid
15, 4AE6-12 fl oz12 h14 dApply at 50% eggs hatch when larvae are small. Don’t apply to successive generations of CPB.
Entrust SC Naturalyte Insect Control
spinosad
5G 4 h7 dApply at 30% egg hatch when larvae are very small.
Aza-Direct
azadirachtin
NCF1-3.5 pt4 h0 dApply 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
NCF4-10 fl oz4 h0 dApply 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.
11ND3-6 qt4 h0 dApply 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
3AF4.5-15.61 fl oz12 h0 dApply 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
35E12-16 fl oz4 hrApply 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).

Stage of Development: Emergence to Row Closure

Colorado Potato Beetle

0 Product Choices

79 Notes

Applications and Notes »  Pest Info »

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
1AG0.5-2.1 pt48 h7 dApply when 50% of eggs have hatched and most larvae are small. Expect 7-14 days of residual control.
Lannate LV
methomyl
1AG1.5-3.0 pt48 h6 dThe 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
5G1.7-3.3 oz4 h7 dApply when about 50% of the eggs have hatched and most larvae are small. Do not apply to consecutive generations of CPB.
Vantacor
chlorantraniliprole
28E1.2-2.5 fl oz4 h14 dApply 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
15G6-12 fl oz12 h14 dApply at 50% egg hatch when larvae are small. Use higher rates and higher spray volumes when larvae are large.
Asana XL
esfenvalerate
3P5.8 to 9.6 fl oz12 h7 dUse of pyrethroid insecticides is not recommended mid-season. If used, apply when larvae are small. Monitor for subsequent pest outbreaks.
Agri-Mek SC
abamectin
6G1.75-3.5 fl oz12 h14 dApply 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
3P2.1 to 6.4 fl oz12 h21 dCPBs 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
3P1.6-2.8 fl oz12 h0 dUse of pyrethroid insecticides is not recommended mid-season. If used, apply when larvae are small. Monitor for subsequent pest outbreaks.
Warrior II
lambda-cyhalothrin
3P1.28-1.92 fl oz24 h7 dUse of pyrethroid insecticides is not recommended mid-season. If used, apply when larvae are small. Monitor for subsequent pest outbreaks.
Mustang Maxx
zeta-cypermethrin
3P3.2-4.0 fl oz12 h1 dUse of pyrethroid insecticides is not recommended mid-season. If used, apply when larvae are small. Monitor for subsequent pest outbreaks.
Imidan 70-W
phosmet
1BG-F1.33 lb5 d7 dApply when about 50% of eggs have hatched and larvae are small for knockback control.
Torac
tolfenpyrad
21AE14-21 fl oz12 h14 dApply when about 50% of the eggs have hatched for best results. Rapid anti-feeding activity. It controls eggs, larvae, and adults.
Exirel
cyantraniliprole
28E5-15.5 fl oz12 h7 dApply at 50% egg hatch when larvae are small. Do not apply more than once via chemigation for CPBs.
Minecto Pro
abamectin, cyantraniprole
6, 28E5.5 to 10 fl oz12 h14 dApply 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
4DG10.5-14 fl oz4 h7 dApply at 50% egg hatch when larvae are small.
Avaunt Insecticide
indoxacarb
22E-G3.5-6 oz12 h7 dApply at 50% egg hatch when larvae are small.
Radiant SC
spinetoram
5G4.5-8 fl oz4 h7 dApply at 50% egg hatch when larvae are small.
Delegate WG
spinetoram
5G2.25-4 oz4 h7 dApply at 50% egg hatch when larvae are small.
Assail 70WP
acetamiprid
4AE0.6-1.7 oz12 h7 dApply when about 50% of the eggs have hatched larvae are small.
Actara
thiamethoxam
4AE1.5-3 oz12 h14 dApply when about 50% of the eggs have hatched larvae are small.
Harvanta 50SL
cyclaniliprole
28E5.5-10.9 fl oz4 h7 dSee Section 2(ee) Recommendation. Apply at 50% eggs hatch when larvae are small.
Cormoran
novaluron, acetamidiprid
15, 4AE6-12 fl oz12 h14 dApply at 50% eggs hatch when larvae are small. Don’t apply to successive generations of CPB.
Entrust SC Naturalyte Insect Control
spinosad
5G 4 h7 dApply at 30% egg hatch when larvae are very small.
Aza-Direct
azadirachtin
NCF1-3.5 pt4 h0 dApply 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
NCF4-10 fl oz4 h0 dApply 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.
11ND3-6 qt4 h0 dApply 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
3AF4.5-15.61 fl oz12 h0 dApply 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, 6P7 to 17 fl oz12 h21 dUse 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, 4P2.8 fl oz12 h7 dUse of pyrethroid insecticides is not recommended mid-season. If used, apply before aphid populations build. Monitor for subsequent pest outbreaks.
Brigadier
bifenthrin, imidacloprid
3, 4AP4.8-6.14 fl oz12 h21 dUse 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
35E12-16 fl oz4 hrApply 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).

Stage of Development: Tuber Bulking

Colorado Potato Beetle

0 Product Choices

78 Notes

Applications and Notes »  Pest Info »

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
1AG1.5-3.0 pt48 h6 dThe 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
5G1.7-3.3 oz4 h7 dApply when about 50% of the eggs have hatched and most larvae are small. Do not apply to consecutive generations of CPB.
Vantacor
chlorantraniliprole
28E1.2-2.5 fl oz4 h14 dApply 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
15G6-12 fl oz12 h14 dApply at 50% egg hatch when larvae are small. Use higher rates and higher spray volumes when larvae are large.
Agri-Mek SC
abamectin
6G1.75-3.5 fl oz12 h14 dApply 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
3G2.1-6.4 fl oz12 h21 dCPBs are on the label but not in the potato section. Apply at 50% egg hatch while larvae are small.
Torac
tolfenpyrad
21AE14-21 fl oz12 h14 dApply when about 50% of the eggs have hatched for best results. Rapid anti-feeding activity. It controls eggs, larvae, and adults.
Exirel
cyantraniliprole
28E5-15.5 fl oz12 h7 dApply at 50% egg hatch when larvae are small. Do not apply more than once via chemigation for CPBs.
Minecto Pro
abamectin, cyantraniprole
6, 28E5.5 to 10 fl oz12 h14 dApply 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
4DG10.5-14 fl oz4 h7 dApply at 50% egg hatch when larvae are small.
Avaunt Insecticide
indoxacarb
22E-G3.5-6 oz12 h7 dApply at 50% egg hatch when larvae are small.
Radiant SC
spinetoram
5G4.5-8 fl oz4 h7 dApply at 50% egg hatch when larvae are small.
Delegate WG
spinetoram
5G2.25-4 oz4 h7 dApply at 50% egg hatch when larvae are small.
Assail 70WP
acetamiprid
4AE0.6-1.7 oz12 h7 dApply when about 50% of the eggs have hatched larvae are small.
Actara
thiamethoxam
4AE1.5-3 oz12 h14 dApply when about 50% of the eggs have hatched larvae are small.
Harvanta 50SL
cyclaniliprole
28E5.5-10.9 fl oz4 h7 dSee Section 2(ee) Recommendation. Apply at 50% eggs hatch when larvae are small.
Cormoran
novaluron, acetamidiprid
15, 4AE6-12 fl oz12 h14 dApply at 50% eggs hatch when larvae are small. Don’t apply to successive generations of CPB.
Entrust SC Naturalyte Insect Control
spinosad
5G 4 h7 dApply at 30% egg hatch when larvae are very small.
Aza-Direct
azadirachtin
NCF1-3.5 pt4 h0 dApply 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
NCF4-10 fl oz4 h0 dApply 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.
11ND3-6 qt4 h0 dApply 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
3AF4.5-15.61 fl oz12 h0 dApply 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
3G5.8 to 9.6 fl oz12 h7 dApply at 50% egg hatch while larvae are small.
Athena
abamectin (avermectin) and bifenthrin
3, 6G7 to 17 fl oz12 h21 dApply at 50% egg hatch when larvae are small.
Baythroid XL
beta-cyfluthrin
3G1.6-2.8 fl oz12 h0 dApply at 50% egg hatch while larvae are small.
Warrior II
lambda-cyhalothrin
3G-F1.28-1.92 fl oz24 h7 dApply at 50% egg hatch while larvae are small.
Mustang Maxx
zeta-cypermethrin
3G-F3.2-4.0 fl oz12 h1 dApply at 50% egg hatch while larvae are small.
Imidan 70-W
phosmet
1BG1.33 lb5 d7 dApply when about 50% of eggs have hatched and larvae are small for knockback control.
Leverage 360
beta-cyfluthrin, imidacloprid
3, 4E-G2.8 fl oz12 h7 dApply at 50% eggs hatch when larvae are small.
Brigadier
bifenthrin, imidacloprid
3, 4AE4.8-6.14 fl oz12 h21 dApply at 50% eggs hatch when larvae are small.
Calantha
ledprona
35E12-16 fl oz4 hrApply 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).

Stage of Development: Late Tuber Bulking to Harvest

Colorado Potato Beetle

0 Product Choices

75 Notes

Applications and Notes »  Pest Info »

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; 12E See Label12 hDon'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
4AE See LabelDon’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
4AE See LabelDon’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.

Stage of Development: Preplant

Colorado Potato Beetle

0 Product Choices

3 Notes

Applications and Notes »  Pest Info »

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.