OCP Eco‑Caterpillar Killer (also known as DiPel) harnesses a naturally occurring bacterium (Bacillus thuringiensis var. kurstaki) to effectively control leaf-eating caterpillars on ornamentals, vegetables, herbs, and fruit trees by causing them to stop feeding and perish within 3–4 days. Safe for people, pets, wildlife, and beneficial insects like bees and ladybeetles, it's approved for organic gardening and has no withholding period—allowing you to harvest edible crops the same day it’s applied.