WSU Extension > Walla Walla County > Gardening > Plant Pests & Diseases Plant Pests & Diseases Integrated Pest Management (IPM) Cultural plant the right plant in the right place plant disease resistant varieties keep plants healthy keep garden clean rotate annual plants Physical hand pick spray with water prune barriers rototill traps Biological beneficial insects microorganisms parasitic nematodes birds, snakes, frogs, ducks Chemical insecticidal soap horticultural oils botanical insecticides inorganic fungicides and insecticides synthetic fungicides and insecticides WSU Hortsense Home gardener fact sheets for managing plant problems Program Contact Amy Rosenberg, Extension Coordinator Phone Number509-524-2685 Email Address • amy.rosenberg@wsu.edu