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Intensification of insecticide resistance in UK field populations of the peach-potato aphid, Myzus persicae (Hemiptera: Aphididae) in 1996

Published online by Cambridge University Press:  10 July 2009

S.P. Foster ,
I. Denholm ,
Z.K. Harling ,
G.D. Moores  and
A.L. Devonshire
S.P. Foster
Affiliation:
IACR-Rothamsted, Harpenden, Herts, AL5 2JQ, UK
I. Denholm
Affiliation:
IACR-Rothamsted, Harpenden, Herts, AL5 2JQ, UK
Z.K. Harling
Affiliation:
IACR-Rothamsted, Harpenden, Herts, AL5 2JQ, UK
G.D. Moores
Affiliation:
IACR-Rothamsted, Harpenden, Herts, AL5 2JQ, UK
A.L. Devonshire*
Affiliation:
IACR-Rothamsted, Harpenden, Herts, AL5 2JQ, UK
*
* Fax: 01582 762595 E-mail: [email protected]
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Abstract

The well-established carboxylesterase-based resistance to insecticides in Myzus persicae Sulzer has recently been accentuated by the appearance of aphids with a modified acetylcholinesterase (MACE) insensitive to pirimicarb and the novel aphicide, triazamate. This target site resistance mechanism was found in M. persicae from crops in the UK for the first time in 1996, together with especially large proportions of aphids with R2 and R3 levels of carboxylesterases, a combination that was associated with serious insecticide failures. This paper describes the incidence of both mechanisms and discusses the implications for future recommendations for aphid control in the UK.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 88 , Issue 2 , April 1998 , pp. 127 - 130
Copyright
Copyright © Cambridge University Press 1998

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