Progress with documenting and combating insecticide resistance in Bemisia tabaci

Ian Denholm, M Cahill, F J Byrne, AL Devonshire

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Under increasing selection pressure from insecticides, Bemisia (Hemiptera: Homoptera: Aleyrodidae) has developed resistance to all major chemical groups (pyrethroids, organophosphates, carbamates and cyclodienes) and some newer agents including buprofezin and pyriproxyfen. Although B-type populations often exhibit strong resistance, reflecting their intensive exposure to insecticides, there appears to be no predictable relationship between the frequency or pattern of resistance revealed by bioassays, and the biotype status of whiteflies. Reliable monitoring procedures are a prerequisite for anticipating, documenting and combating resistance problems. Management tactics must be broad-based and sufficiently versatile to contend with a wide range of conditions. Alternation strategies, coupled with severe restrictions on lead products and the preservation or augmentation of natural enemies, have greatest scientific and political appeal. This approach, as practised on cotton in Israel, may currently provide one the world's few examples of a sustainable insecticide resistance management (IRM) strategy.

Progress with documenting and combating insecticide resistance in Bemisia. Available from: [accessed Jun 14, 2017].
Original languageEnglish
Title of host publicationProceedings of an International Bemisia Workshop
Subtitle of host publication3-7 October 1994, Shoresh, Israel
Publication statusPublished - 1994


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