Monterey B.t. Caterpillar Killer

This insecticide uses Bacillus thuringiensis, a naturally occurring soil bacterium. When caterpillars ingest the treated plant leaves, the bacteria produce proteins that disrupt their digestive systems, causing them to stop feeding and eventually die.

Yes, it is designed for use on vegetables, fruits, and ornamental plants. Because it targets specific pests, it is a common choice for organic gardening, but you should always wash your produce thoroughly before eating.

The mixing ratio depends on the specific pest and the plant type, so you must consult the label on the bottle for precise measurements. Generally, you will mix the concentrate with water in a spray bottle or garden sprayer to create the appropriate dilution.

No, this product is highly selective. It is specifically formulated to target caterpillars, worms, and moths, meaning it generally leaves beneficial insects like bees, ladybugs, and predatory wasps unharmed.

The effectiveness of the spray can diminish due to sunlight and rain. For ongoing protection, reapplication is typically necessary every 7 to 10 days, or immediately after a heavy rainfall.