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  • Bt for Vine Borers

    Created by MELANIE on

    I was reading that BT works to kill vine borers. Is that true? If so which one do I purchase? Thank you

  • Author
  • #207893

    Eric Vinje

    Hi Melanie –

    Bacillus thuringiensis var. kurstaki or Bt-k will work on Squash Vine Borers but it must be injected or sprayed into the stem holes. In fact, studies have shown that Bt — an organic insecticide — was just as effective as chemical treatments. Here’s a link that should help:


    Keep in mind that Bt is not approved by the EPA for vine borer control and will not show up on the product label.

    Good luck!

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