CATERPILLAR KILLER SPRAY CONCENTRATE 16oz

Stop leaf-chewing caterpillars without harming beneficial insects, bees, or birds! This product uses Bacillus thuringiensis (Bt), a naturally occurring soil bacterium that, when ingested by a caterpillar, paralyzes its gut. It is a highly effective, organic-approved solution that is specific to caterpillars (worms) and is harmless to humans and wildlife.

• Best For:
  • Edibles: Protecting vegetables and fruits from common pests like Cabbage Worms, Tomato Hornworms, Tent Caterpillars, and Gypsy Moth Larvae.
  • Organic Gardening: A targeted treatment that maintains the balance of your garden ecosystem.
  • Quick Action: It stops the caterpillars from feeding almost immediately, though they may take a few days to die.
• Key Actionable Steps:
  • How to Mix & Apply: Dilute the concentrate with water according to the label. Use a pressurized sprayer to achieve thorough, complete coverage of all foliage, including the undersides of leaves, where small worms hide.
  • Timing: Apply when worms are small and actively feeding. Bt must be ingested to work, so apply when the pests are present.
  • Reapplication: Reapply every 5 to 7 days, especially after rain or watering, or as new foliage appears.
  • Pro Tip: Apply in the late afternoon or evening because sunlight breaks down the active Bt ingredient quickly. Since it has a short residual life, proper timing and coverage are essential.