English field samples of Thrips tabaci show strong and ubiquitous resistance to deltamethrin

A - Papers appearing in refereed journals

Foster, S. P., Gorman, K. and Denholm, I. 2010. English field samples of Thrips tabaci show strong and ubiquitous resistance to deltamethrin. Pest Management Science. 66 (8), pp. 861-864.

AuthorsFoster, S. P., Gorman, K. and Denholm, I.
Abstract

BACKGROUND: Onion thrips, Thrips tabaci Lindeman, is a prevalent pest of glasshouse and field vegetables, such as leeks and salad onions. Pesticides are the main option for control, but this approach risks the evolution and spread of insecticide resistance. In the light of anecdotal reports in the United Kingdom of poor efficacy of pyrethroids against T. tabaci, thought to be primarily a consequence of resistance, the responses to deltamethrin of ten English samples of T. tabaci, collected from field leeks and salad onions in 2006, were measured to establish the level and prevalence of potential resistance to this compound. RESULTS: All the samples showed significant deltamethrin resistance that was comparable or slightly lower than the maximum level reported previously for T. tabaci from New Zealand. CONCLUSION: The mechanism(s) conferring deltamethrin resistance remain unknown at present but are likely to extend to other synthetic pyrethroids approved for use against this species. The findings suggest that these compounds are unlikely to give satisfactory control of T. tabaci in England and have stimulated the recommendation to use alternatives. (C) 2010 Society of Chemical Industry

KeywordsAgronomy; Entomology
Year of Publication2010
JournalPest Management Science
Journal citation66 (8), pp. 861-864
Digital Object Identifier (DOI)doi:10.1002/ps.1953
PubMed ID20603874
Open accessPublished as non-open access
FunderChemicals Regulation Directorate (CRD) of the Health and Safety Directorate
Funder project or codeCentre for Sustainable Pest and Disease Management (PDM)
Project: 4811
ISSN1526498X
PublisherWiley

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