Western spotted cucumber beetle (Diabrotica undecimpunctata)
Western striped cucumber beetle (Acalymma trivittatum)
Pest description, crop damage and life history
See:
Common Pests of Vegetable Crops
Management-chemical control: HOME USE
- acetamiprid
- azadirachtin (neem oil)-Some formulations are OMRI-listed for organic use.
- bifenthrin (often as a mix with zeta-cypermethrin).
- carbaryl
- cyfluthrin
- gamma-cyhalothrin
- imidacloprid
- insecticidal soap-Some formulations OMRI-listed for organic use.
- kaolin-Applied as a spray to foliage and stems it acts as a repellent to some insect pests. Some formulations are OMRI-listed for organic use.
- malathion
- permethrin
- pyrethrins-Some formulations are OMRI-listed for organic use.
- zeta-cypermethrin
Management-chemical control: COMMERCIAL USE
- alpha-cypermethrin (Fastac EC) at 0.014 to 0.025 lb ai/a. PHI 1 day. REI 12 hr. Retreatment interval 7 days. Do not exceed 0.075 lb ai/a per season.
- bifenthrin (Sniper) at 0.033 to 0.1 lb ai/a. PHI 7 days. REI 12 hr. Head lettuce only. Do not exceed 0.5 lb ai/a per season. Retreatment interval 7 days.
- bifenthrin/avermectin (Athena) at 0.05 to 0.12 lb ai/a. PHI 7 days. REI 12 hr. Retreatment interval 7 days. Head lettuce only. Do not exceed 0.056 lb ai/a avermectin or 0.5 lb ai/a bifenthrin per season.
- bifenthrin/imidacloprid (Brigadier) at 0.08 to 0.095 lb ai/a. PHI 7 days. REI 12 hr. Do not exceed 0.24 lb ai/a imidacloprid and 0.5 lb ai/a bifenthrin. Retreatment interval 7 days.
- cypermethrin (Holster) at 0.05 to 0.1 lb ai/a. PHI 5 days. REI 12 hr. Retreatment interval 7 days. Head lettuce only. Do not exceed 0.5 lb ai/a per season.
- dinotefuran (Scorpion 35SL) at 0.05 to 0.013 lb ai/a foliar or 0.23 to 0.27 soil. PHI 7 days foliar; 21 days soil. REI 12 hr. Retreatment interval 7 days. Do not exceed 0.266 lb ai/a foliar or 0.532 soil per season. See label.
- zeta-cypermethrin (Mustang) at 0.028 to 0.05 lb ai/a. PHI 1 day. REI 12 hr. Retreatment interval 7 days. Do not exceed 0.3 lb ai/a per season.