Tetranychus spp.
Pest description, crop damage and life history
See:
Common Pests of Vegetable Crops
Management-chemical control: HOME USE
- azadirachtin (neem oil)-Some formulations are OMRI-listed for organic use.
- bifenthrin (often as a mix wth zeta-cypermethrin).
- horticultural oil Some formulations are OMRI-listed for organic use.
- insecticidal soap-Some formulations are OMRI-listed for organic use.
- plant-derived essential oils (clove, cottonseed, garlic etc.)-Some formulations are OMRI-listed for organic use.
- sulfur (as a mix with pyrethrins)-Some formulations are OMRI-listed for organic use.
Management-chemical control: COMMERCIAL USE
- abamectin (Agri-Mek SC, Epi-Mek) at 0.009 to 0.019 lb ai/a. PHI 7 days. REI 12 hr. Do not make more than two sequential applications or exceed 0.056 lb ai/a per season.
- bifenazate (Acramite 50WS) at 0.375 to 0.5 lb ai/a. PHI 3 days. REI 12 hr. Do not exceed one treatment.
- bifenthrin (Brigade 2EC) at 0.08 to 0.1 lb ai/a. PHI 3 days. REI 12 hr. Do not exceed 0.3 lb ai/a per season. Do not make more than two applications after bloom. Retreatment interval 7 days.
- etoxazole (Zeal) at 0.09 to 0.135 lb ai/a. PHI 7 days. REI 12 hr. Limit 1 treatment per season.
- insecticidal soap (M-Pede) at 1 to 2% solution. Potassium salts of fatty acids. See label for gal/a. PHI 0 days. REI 12 hr.
- Isaria fumosorosea (PFR-97 20% WDG) Most effective when application is initiated just before or at the first signs that target pests are present. OMRI-listed for organic use.
- malathion (Fyfanon 8) 1 lb ai/a. PHI 1 day. REI 12 hr. Limit 4 treatments for watermelon and 2 treatments for all others. Retreatment interval 7 days.
- propyleneglycol monolaurate (Acaritouch) at 12 to 25 oz/100 gal of formulated product. PHI 1 day. REI 4 hr.
Note: Pesticides may injure cucurbits. The possibility of injury is less when foliage is dry at time of application.