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Selection for pesticide resistance in Aphytis
Author(s) -
Havron A.,
Rosen D.,
Prag H.,
Rössler Y.
Publication year - 1991
Publication title -
entomologia experimentalis et applicata
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.765
H-Index - 83
eISSN - 1570-7458
pISSN - 0013-8703
DOI - 10.1111/j.1570-7458.1991.tb01554.x
Subject(s) - aphelinidae , biology , homoptera , diaspididae , malathion , toxicology , population , selection (genetic algorithm) , pesticide resistance , pest analysis , zoology , pesticide , botany , ecology , demography , artificial intelligence , sociology , computer science
Field‐collected populations of Aphytis holoxanthus DeBach (Hymenoptera: Aphelinidae), a parasite of Chrysomphalus aonidum (L.) (Homoptera: Diaspididae), were tested for malathion and for azinphosmethyl tolerance, and selected for increased resistance. Initial tolerance for malathion was not significantly different between populations, and could not be significantly increased by 30 selection cycles. Two field populations showed relatively high levels of azinphosmethyl tolerance, which were further increased by selection to 24–48 times that of a susceptible laboratory population. The differences in response to the two organophosphorus insecticides are discussed in relation to differences in their modes of application, detoxification by insects and the genetic bottleneck experienced by an imported species.