The effect of insecticide application sequences on the control and insecticide resistance status of the peach-potato aphid, Myzus persicae (Hemiptera: Aphididae), on field crops of potato

A - Papers appearing in refereed journals

Parker, W. E., Howard, J. J., Foster, S. P. and Denholm, I. 2006. The effect of insecticide application sequences on the control and insecticide resistance status of the peach-potato aphid, Myzus persicae (Hemiptera: Aphididae), on field crops of potato. Pest Management Science. 62 (4), pp. 307-315. https://doi.org/10.1002/ps.1162

AuthorsParker, W. E., Howard, J. J., Foster, S. P. and Denholm, I.
Abstract

Experiments were done on commercial potato crops in the UK to investigate the effect of different insecticide sequences on the control and insecticide resistance status of Myzus persicae (Sulzer). The work was done to provide field validation of similar laboratory studies done in 'field simulators'. To ensure adequate aphid populations and to influence the initial resistance status of the aphid population, cultured M. persicae from a clone of known resistance status (esterase R-1, kdr heterozygote, non-MACE (modified acetylcholinesterase)) were inoculated into both experiments. Two-spray programmes starting with lambda-cyhalothrin (a pyrethroid insecticide) gave poor control in comparison with programmes starting with pirimicarb (a carbamate insecticide) or pirimicarb-containing mixtures. This concurred closely with the results obtained from single applications in field simulator studies. Treatment sequences containing pymetrozine (a pyridine azomethine insecticide) were also effective, though slower-acting. This again concurs with field simulator studies. The proportions of aphids carrying different resistance mechanisms were largely unaffected by treatment in these experiments. The implications of these results for field control strategies are discussed. (c) 2006 Society of Chemical Industry.

KeywordsAgronomy; Entomology
Year of Publication2006
JournalPest Management Science
Journal citation62 (4), pp. 307-315
Digital Object Identifier (DOI)https://doi.org/10.1002/ps.1162
PubMed ID16470680
Open accessPublished as non-open access
Funder project or code510
Project: 4378
ISSN1526498X
PublisherWiley

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