• Grant County Horticultural Pest & Disease Board
• Tree Fruit Pest and Disease Management 
• North Central Washington Tree Fruit Growers
• WSU Tree Fruit Research & Extension Center (TFREC)
  • WSU - TFREC Popular Links  

Orchard Monitoring Manual for Pests, Natural Enemies and Diseases of Apple, Pear and Cherry. This guide is intended to provide descriptions, information on life stages, cycles, monitoring methods and treatment thresholds for common pests of apple, pear and cherry in Eastern Washington. The manual also includes the common natural enemies (predators and parasites) and information on the most common tree fruit diseases as well.  Available in English & Spanish - Order or Download PDF.

Crop Protection Guide for Tree Fruits in Washington. This annual publication outlines examples of pesticides registered on orchard insect, disease, and weed pests in Washington State. Efficacy and toxicity charts. Control timing by bud, bloom, and harvest stages for apples, pears, peaches, apricots, nectarines, cherries, prunes, and plums. Pesticide safety and regulatory information. Growth and nutrient sprays. Chemical and cultural control methods. Bee toxicity warnings. Download PDF or order from WSU Extension Online Store.