The California beekeeping industry of more than 600,000 colonies produced in 1965 an income of nearly $8,500,000 (Stanger, 1966). In addition, honey bees are annually 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).
Atkins, E. L. and Anderson, L. D., "Toxicity of Pesticides and Other Agricultural Chemicals to Honey Bees" (1967). An. Paper 154.
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