Control of insecticide resistance in laboratory populations of house fly (Diptera: Muscidae ̕by introduction of susceptibility genes

We investigated the effects of immigration of individuals carrying susceptibility alleles on the level of resistance in population of the house fly, Musca domestica L., selected for malathion resistance. Two types of males, WHO/IN males (homozygous for susceptibility genes) and A14-WHO males (hetero...

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Bibliographic Details
Published inJournal of economic entomology Vol. 86; no. 2; pp. 189 - 194
Main Authors Kence, M, Kence, A
Format Journal Article
LanguageEnglish
Published 1993
Subjects
biological resistance
genetics
insect control
insecticide resistance
malathion
males
mortality
Musca domestica
release
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Summary:We investigated the effects of immigration of individuals carrying susceptibility alleles on the level of resistance in population of the house fly, Musca domestica L., selected for malathion resistance. Two types of males, WHO/IN males (homozygous for susceptibility genes) and A14-WHO males (heterozygous for the second chromosome) were released into the resistant populations in 1:9, 1:1, and 9:1 ratios of immigrant/resident males. In both experiments, we observed that increasing the ratio of immigrant to resident males from 1:9 to 9:1 caused an associated increase in mortality caused by malathion applications. Release of A14-WHO males was more effective in stopping the evolution of resistance in resistant populations than was release of WHO/IN males. Fitness parameters of resistant and susceptible strains were also compared. The WHO/IN strain had low viability and fecundity. R and A14-WHO males were longer-lived compared with WHO/IN males, although they did not differ in mating success.
ISSN:0022-0493
1938-291X