Journal of Economic Entomology (1996) 89, 288-301

Peter J.E. Goss and John A. McKenzie (1996)
Selection, refugia, and migration: Simulation, of evolution of dieldrin resistance in Lucilia cuprina (Diptera: Calliphoridae)
Journal of Economic Entomology 89 (2), 288-301
Abstract: We simulated changes in allele frequency at the dieldrin resistance locus observed in field populations of Lucilia cuprina (Wiedemann) by using computer models with parameters for selection, refugia, and migration. Dieldrin was introduced to control L. cuprina in Australia in 1955; resistant individuals were first observed at high frequency in 1957. The frequency of resistant individuals has declined since the chemical was withdrawn for control in 1958. Both the increase and decrease phases were simulated. Empirical measurements of fitness, migration, and the number of generations per year are available. Refugia and the number of treatments per year are the most important factors in slowing the evolution of resistance in this system. The simulation showed that, if there is strong overwintering selection against resistance, the evolution of resistance could be slowed if part of the population is deliberately left in refugia from insecticide use. The results emphasize that the predictions of general models must be interpreted in a system-specific manner.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): John A. McKenzie

Research topic(s) for pests/diseases/weeds:
pesticide resistance of pest

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Lucilia cuprina