Field-simulator studies of insecticide resistance to dimethylcarbamates and pyrethroids conferred by metabolic- and target site-based mechanisms in peach-potato aphids, Myzus persicae (Hemiptera: Aphididae)

A - Papers appearing in refereed journals

Foster, S. P., Denholm, I. and Devonshire, A. L. 2002. Field-simulator studies of insecticide resistance to dimethylcarbamates and pyrethroids conferred by metabolic- and target site-based mechanisms in peach-potato aphids, Myzus persicae (Hemiptera: Aphididae). Pest Management Science. 58 (8), pp. 811-816.

AuthorsFoster, S. P., Denholm, I. and Devonshire, A. L.
Abstract

A range of insecticides was applied at recommended application rates against populations of Myzus persicae (Sulzer) carrying various combinations of three insecticide resistance mechanisms (carboxylesterase-based metabolic resistance and two target-site mechanisms, known as MACE and kdr), supported on either Chinese cabbage or potatoes in field simulator cages. Patterns of response were similar on both host species. MACE conferred extreme resistance to pirimicarb and triazamate (dimethylcarbamate insecticides). The kdr mechanism was associated with resistance to lambdacyhalothrin, cypermethrin and deltamethrin (pyrethroid insecticides). A mixture of pirimicarb plus lambda-cyhalothrin was only effective against M persicae not carrying kdr or carrying kdr and low carboxylesterase-based resistance. None of the insecticides tested was effective against M persicae carrying both MACE and kdr resistance. The implications of these findings for the formulation of control strategies, based on regular monitoring of resistance genotype frequencies, are discussed. (C) 2002 Society of Chemical Industry.

KeywordsAgronomy; Entomology
Year of Publication2002
JournalPest Management Science
Journal citation58 (8), pp. 811-816
Digital Object Identifier (DOI)doi:10.1002/ps.541
PubMed ID12192906
Open accessPublished as non-open access
Funder project or code433
510
Combating insecticide resistance in peach potato aphids in the UK
Ecological genetics and management of insecticide resistance
ISSN1526498X
PublisherWiley

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