Field horticulturists from Chelan Fruit Cooperative examine beneficial insects during a hands-on workshop offered in February. Inset: Angela Gadino discusses natural-enemy monitoring techniques with Leo Garcia during a workshop preceding the WSU Sunrise Orchard Field Day last August. ­Photo by Stacy McDonald, WSU-TFREC A stable integrated pest management program incorporates a balance of chemical and biological control (also known as biocontrol) components. For many years, IPM programs in western orchard systems were fairly stable, thanks to broad-spectrum pesticides that controlled key pests and natural enemies that became resistant to them. Then, legislatively mandated changes in pesticide use resulted in the […]