8 oz. Bt organic caterpillar control that works naturally. Bacillus thuringiensis is available for use in destroying tent caterpillars, cabbage loopers, cutworms, gypsy moth larvae, budworms, corn borers, tomato hornworms, leafrollers, peach tree borers, webworms, codling moths, and other caterpillars. B.t. is also available for controlling the larvae of black flies, mosquitoes, and fungus gnats, in addition to potato beetles and certain leaf beetles. For Trees, Shrubs & Vegetables Not Registered in CA. EPA Reg. No. 42697-23.