Commercial apiaries were monitored with dead bee hive entrance traps in several agricultural areas of eastern Washington during 1979–1981. Low to moderate kills of honey bees occur periodically throughout much of the season in the more diversified crop areas sampled, the Yakima Valley and the Columbia Basin. Certain regions with less intensive insecticide usage, the Kittitas Valley, the Mattawa area, and the Touchet area, are much safer for summer bee pasture