Does Bt Kill Squash Vine Borers
If You Spray Bt on the Stems and Leaves of Your Squash Plants Once per Week (Or More If There’s a Lot of Rain), the Squash Vine Borer’s Eggs or Larvae Will Be...
If you spray Bt on the stems and leaves of your squash plants once per week (or more if there’s a lot of rain), the squash vine borer’s eggs or larvae will be killed quickly, long before developing into large enough larvae to harm your squash plants.
What insecticide kills squash vine borers?
Common names of active ingredients effective against squash vine borers are: carbaryl, permethrin, bifenthrin and esfenvalerate. If your crop is still successfully attacked by borers, you can try to kill the borer inside the vine.
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How do you kill squash vine borers?
To do surgery for squash vine borers, use a small knife to carefully make a cut lengthwise down (not across) the infested part of the stem, as shown at the top of the page. Extract or kill the borers, then bury the cut portion of the stem in the soil.