Recognition and avoidance of insecticide-treated Scots Pine (Pinus sylvestris) by Hylobius abietis (Coleoptera: Curculionidae): implications for pest management strategies
1 The feeding preferences of Hylobius abietis (L.) were studied in a series of choice and no-choice trials for insecticide-treated food, time-to-death studies and arena trials.
2 Treatment of Scots Pine twigs with a pyrethroid insecticide, lambda-cyhalothrin, was compared with twigs treated with imidacloprid, a neonicotinoid.
3 Clear avoidance of insecticide-treated food sources, with strong evidence of selection for untreated food sources, was shown.
4 In addition, it took up to 3 weeks for H. abietis to die from insecticide poisoning when fed on treated food and, during this time, it was potentially capable of finding new untreated food sources.
Document Type: Research Article
Affiliations: Division of Biology, Imperial College, Silwood Park, Ascot, Berkshire SL5 7PY, U.K.
Publication date: 2005-08-01