University of California
The beekeeping industry (more than 600,000 colonies) produced nearly $81/2 million income for California beekeepers during 1965 (Stanger 1966). In addition honey bees are used to pollinate California crops worth $200 million. For the past 80 years this important industry has sustained serious losses from agricultural pesticide applications. With the introduction in recent years of new pesticides, this loss has been as high as 52,000 colonies in a single year (Foote 1966).
Anderson, L. D. and Atkins, E. L. Jr., "Toxicity of Pesticides and Other Agricultural Chemicals to Honey Bees" (1967). An. Paper 1.
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