Managing insect pests in potatoes is challenging because so many pests overlap in their seasonal activity and insecticides vary in what they control. The table below is a quick guide to seasonal activity of major potato pests, and how they relate to potato growth stages, in the Columbia Basin region of Washington; many of these same pests and timings are applicable to other potato-producing regions. To find more detailed crop protection guidelines please visit: https://cpg.potatoes.wsu.edu/, or become a registered DAS user for access to our interactive spray selection tool.