<紀要論文>
Toxicity of Selective Insecticides to Neochrysocharis formosa (Westwood) (Hymenoptera: Eulophidae), a Parasitoid of the American Serpentine Leafminer Liriomyxa trifolii (Burgess) (Diptera: Agrizomydae)

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概要 The susceptibilities of Neochrysocharis formosa, a larval parasitoid of the American serpentine leafminer Liriomyxa trifolii, to three insecticides (imidacloprid, pymetrozine and lufenuron) were inces...tigated in the laboratory. Individual parasitoids were placed in the grass vials whose internal surface was coated with the insecticides. For 24h exposure, the LC50 values were 0.033μg/0.5ml for imidacloprid, 75.57μg/0.5ml for pymetrozine and 0.417μl/0.5ml for lufenuron. For imidacroprid and lufenuron, these values were 775.5 and 14.9 times lower than the ercommended concentrations, respectively. Even in concentrations lower than the LC50, parasitoid survival rapidly decreased with time, and the longevity of parasitoid females was also reduced. These results suggested that all of imidacloprid, pymetrozine and luefnuron were harmful to N. formosa.続きを見る

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登録日 2009.04.22
更新日 2017.02.07