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  • tomato worm product

    Created by Steve Lind on

    I have just planted one tomato plant and am concerned about tomato worms. What is the best product to protect my plant?

  • Author
  • #234062

    E. Vinje

    Hi Steve –

    The best product for tomato hornworms is Bacillus thuringiensis, var. kurstaki, or Bt-k for short. Bt-k is most effective when applied to caterpillars during their 1st and 2nd instars, when they are still small. It must be ingested by the insect, as it is a stomach toxin. Harmless to humans, animals and beneficial insects. Here’s a couple of links that should help.

    Tomato Hornworm

    Garden Dust

    Bt kurstaki (Bt-k)

    Good luck!

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