Monterey® B.t. GallonMonterey B. T. is a organic way to control caterpillars in your garden without harming beneficial insects when used as directed. OMRI listed for Organic Gardening. Caterpillars eat the treated foliage and stop feeding immediately thus less harming the plant. Can also be used on ornamentals. Kills and controls only caterpillar type insects Has no effects on beneficial insects like honey bees or ladybugs when used as directed For use on vegetables,