Protect your garden naturally with Safer Brand Caterpillar Killer Concentrate. This OMRI Listed biological insect control uses Bacillus thuringiensis var. kurstaki (BTK), a naturally occurring bacterium that specifically targets leaf-eating caterpillars and worms without harming beneficial insects when used as directed.

Ideal for organic gardening, this BT concentrate helps stop feeding immediately after ingestion, helping to reduce plant damage on vegetables, fruits, ornamentals, and shade trees. Safer Brand Caterpillar Killer is safe for use around birds, earthworms, pollinators, and beneficial insects when applied according to label instructions.

Perfect for gardeners looking for an effective organic caterpillar treatment for tomato hornworms, cabbage worms, tent caterpillars, and other common garden pests.