This biological insecticide is extremely selective. The active ingredient is Bacillus thuringensis v. kurstaki, a naturally occurring bacteria which is fatal to the larvae of the order Lepidoptera. Humans, beneficial insects, birds, fish & wildlife are not affected by it. Formulated as water soluble granules, general application rates are from 1/4 to 1 lb per acre. It works against the Tomato Hornworm, Loopers, Cutworms, Imported Cabbageworm, Diamondback Moth, Armyworms, Heliothis, Leafroller, Webworm, etc. Active ingredient 10.3 % Bt v. kurstaki. For CA commercial growers a Pest. ID# is required. Call for most current pricing.