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Insecticide‐resistant pollen beetles ( Meligethes aeneus F) found in Danish oilseed rape ( Brassica napus L) fields
Author(s) -
Hansen Lars Monrad
Publication year - 2003
Publication title -
pest management science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.296
H-Index - 125
eISSN - 1526-4998
pISSN - 1526-498X
DOI - 10.1002/ps.737
Subject(s) - dimethoate , biology , brassica , pest analysis , pollen , bifenthrin , pyrethroid , toxicology , cyhalothrin , agronomy , botany , pesticide
The pollen beetle is the most important pest in Danish oilseed rape fields. In 2001, we screened a broad range of pollen beetle populations for pyrethroid and dimethoate resistance. A standard dip‐test was used to test insecticide resistance in 18 populations collected from oilseed winter and spring rape fields. The beetles were treated with four different insecticides: the pyrethroids tau‐fluvalinate, lambda‐cyhalothrin and esfenvalerate, and the organophosphate dimethoate. The results show that up to 99% of the pollen beetles survived Danish standard doses of pyrethroids and up to 36% of the beetles survived standard doses of dimethoate. Copyright © 2003 Society of Chemical Industry