52. Derived from: Legner, E. F. & G. S. Olton. 1968. The biological method and integrated control of house and stable flies in California. Calif. Agric. 22(6): 1-4.
Full utilization of the biological method in fly control requires the preservation of existing predatory and parasitic enemies in animal dung. The use of residual poisons to control adult flies did not interfere with natural enemy complexes in these tests. Alternating the removal of manure deposits, and abstaining from chemical treatment of manure were essential procedures in maintaining largest populations of predators and parasites.
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