The relationship between insecticide residue profiles and the lethal and sub-lethal responses of adult plum curculio, Conotrachelus nenuphar (Herbst) (Coleoptera: Curculionidae), was investigated in apples in 2001 and 2002. Single dose field-based bioassays were used to measure lethal and sub-lethal effects on adult curculio exposed to progressively aged treatment residues. Parallel samples of fruit and foliage were taken and surface and sub-surface residues quantified using HPLC analysis. Levels of curculio oviposition and feeding damage were measured on fruit and foliage.
Species 1: Coleoptera Curculionidae Conotrachelus nenuphar (plum curculio)
Keywords: apple, neonicotinoid
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