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 Botanic Garden >> Gardening >  >> Question and Answer >> Pests

Colorado Potato Beetle Resistance in Kentucky: Neem Oil Alternative

Eastern Kentucky: massive Colorado potato beetle infestation. Sevin dust/spray 3x—no effect. Resistance likely.

Why Sevin Fails

Heavy historical insecticide use → resistance in most populations.

Better Options

  • Hand-picking: Drop in soapy water (effective for gardeners)
  • Neem oil: Farmers don't use it → less resistance. Guide
  • UKy management guide

Outlook

Good luck with summer gardening.

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