University of California

Insecticide resistance in houseflies in California


G. P. Georghiou
M. K. Hawley
E. C. Loomis
M. F. Coombs

Authors Affiliations

G. P. Georghiou is Professor of Entomology and Entomologist, University of California, Riverside; M. K. Hawley is Staff Research Associate, University of California, Riverside; E. C. Loomis is Extension Parasitologist, University of California, Davis; M. F. Coombs is Laboratory Assistant, University of California, Riverside.

Publication Information

Hilgardia 26(9):4-6. DOI:10.3733/ca.v026n09p4. September 1972.

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Precise measurement of insecticide toxicity against house flies from various poultry ranches, dairies and cattle feed lots provided evidence of the presence of resistance roughly in proportion to the extent of insecticide use in each situation. The data indicate where changes to new insecticides are advisable, and illustrate how heavy reliance on insecticides over several years for fly control leads to gradual depletion of available insecticide resources.

Georghiou G, Hawley M, Loomis E, Coombs M. 1972. Insecticide resistance in houseflies in California. Hilgardia 26(9):4-6. DOI:10.3733/ca.v026n09p4
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