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Pollen beetle in the UK; the start of a resistance problem?
Author(s) -
Richardson D. M.
Publication year - 2008
Publication title -
eppo bulletin
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.327
H-Index - 36
eISSN - 1365-2338
pISSN - 0250-8052
DOI - 10.1111/j.1365-2338.2008.01184.x
Subject(s) - pollen , pyrethroid , cyhalothrin , biology , toxicology , bioassay , botany , pesticide , ecology
In 2003, the first report of poor control of pollen beetle Meligethes aeneus at a site in South East England in the UK was investigated but resistance to pyrethroid insecticides was not confirmed in subsequent laboratory testing. Bioassays of 26 UK samples of M. aeneus collected in 2004 with the pyrethroid lambda‐cyhalothrin showed little or no divergence from the response expected of a fully susceptible strain. In 2006 samples of pollen beetle from the UK were sent to Germany, and again these were shown to be fully susceptible. In 2007 using test kits supplied by Udo Heimbach, BBA, 19 samples of pollen beetle were tested, again from across the UK. Results indicated that a small number of individuals were fully resistant, surviving the highest dose of lambda‐cyhalothrin tested (0.375 microg/L) after 5‐h exposure at 4 sites, and after 24‐h exposure at 2 of these sites.