Alfalfa looper (Autographa californica)
Cabbage looper (Trichoplusia ni)
Pest description and crop damage Larvae of both species are pale green with white lines on back and sides. They move in a looping manner and feed on foliage and other tender, above ground plant parts. Moth is gray-brown with a characteristic silvery spot on each forewing.
- azadirachtin (Neemix 4.5) at 0.02 to 0.04 lb ai/a. PHI 0 days. Begin applications at first sign of infestation. Multiple applications and thorough coverage are necessary for effective control. This botanical pesticide acts slowly. Spray early, well before harvest, and check for effect. Some formulations are OMRI-listed for organic use.
- gamma cyhalothrin (Declare) at 0.0075 to 0.025 lb ai/a. Do not apply more than 0.12 lb ai/a per season. PHI 1 day.