Monterey LG 6336  B.T. Biological Insecticide for Worms & Caterpillars 1qt Kills caterpillar-type insects, but has no effect on birds, earthworms, or beneficial insects such as honeybees and ladybugs, when used as directed Worm stage and caterpillars eat treated foliage, then immediately stop feeding and damaging plants Biological Insecticide for Worms & Caterpillars 1qt Easy-to-mix liquid concentrate