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. For use on fruits, vegetables, ornamentals and shade trees. Can be used on edible plants up to the day of harvest. Contains BT Kurstaki bacteria.