Lepidoptera larvae, also called worms or caterpillars,
feed voraciously on plant foliage and fruit, reducing plant health, yields and crop marketability.
DiPel DF Biological Insecticide is the proven solution to control Lepidoptera Larvae. Lets
take a quick look at the serious damage these pests can cause. Then we’ll talk about how
to use DiPel DF. The Lepidoptera larvae that feed on fruiting
vegetables include tomato fruitworm, hornworms and armyworms. In the case of tomato fruitworm,
early stage larvae enter fruit from the stem end, then develop inside the fruit, filling
it with excrement and causing early ripening. Hornworms, begin feeding on leaves and fruit
immediately upon hatching, defoliating plants and scarring young fruit. Armyworms feed on
leaf and fruit surfaces, producing irregular holes, leaving fruit open to contamination
and skeletonizing leaves on bigger plants. In leafy vegetables, some of the biggest Lepidoptera
larvae threats are cabbage looper and import cabbageworm, variegated cutworm and diamondback
moth. Cabbage looper and imported cabbageworm larvae cause holes and scarring in leaves.
They also invade and contaminate the heads of cold crops. These larvae can kill younger
plants. Variegated cutworm larvae begin feeding early in the growing season, cutting seedlings
off at ground level. And diamondback moth larvae feed on leaves, chewing holes in them
or leaving only a thin layer of leave epidermis. Berries are prey for various Lepidoptera larvae,
including fall webworm, cranberry fruitworm and cherry fruitworm. Fall webworm larvae
build webs and feed on leaves. If their webs cover fruit, the larvae will also feed on
the fruit. Cranberry and cherry fruitworm larvae burrow into berries and develop there,
feeding on the pulp, filling the berries with excrement and shriveling the fruit. As they
move from berry to berry, they leave behind webbing that encloses the fruit. DiPel DF is an organic insecticide derived
from a soil bacterium that selectively targets destructive Lepidoptera larvae while remaining
friendly to beneficial insects. DiPel is an excellent fit in resistance management programs
and is registered on more than 200 crops. DiPel DF is NOP compliant and OMRI listed
for organic production. DiPel DF can be applied up to harvest and has a short 4 hour REI,
the lowest legally allowable and no PHI. DiPel DF is a feeding inhibitor and a fatal
endotoxin. Pest ingestion of DiPel DF rapidly stops feeding and eventually causes death.
When a pest consumes DiPel DF, Bt spores and endotoxins enter the larvae’s gut. The endotoxins
dissolve in the stomach and the Bt spores move through the body and multiply, poisoning
the larvae.