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 import
Atkins, E. L.; Greywood, E. A.; and MacDonald, R. L., "Toxicity of Pesticides and Other Agricultural Chemicals to Honey Bees" (1973). An. Paper 156.
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