Skip to main content Skip to navigation

Coronavirus COVID-19

COVID-19 Advisory: WSU Extension is working to keep our communities safe. All Extension programming is being provided virtually, postponed, or canceled. Effective March 16, 2020, WSU Extension county offices and WSU Research & Extension Centers will be closed to the public. We are available via email, phone, and webconference.

Plant Pests & Diseases

Program Contact: Becki Green, Assistant Coordinator
(509) 524-2685 •

Integrated Pest Management (IPM)


  • plant the right plant in the right place
  • plant disease resistant varieties
  • keep plants healthy
  • keep garden clean
  • rotate annual plants


  • hand pick
  • spray with water
  • prune
  • barriers
  • rototill
  • traps


  • beneficial insects
  • microorganisms
  • parasitic nematodes
  • birds, snakes, frogs, ducks


  • insecticidal soap
  • horticultural oils
  • botanical insecticides
  • inorganic fungicides and insecticides
  • synthetic fungicides and insecticides

WSU Hortsense

Home gardener fact sheets for managing plant problems