Department of Entomology, Cornell University, Ithaca, NY 14853-2601, USA.
J Econ Entomol. 2011 Dec;104(6):1942-9. doi: 10.1603/ec11139.
The effect of imidacloprid delivery method and application rate on survival of adult Asian longhorned beetles, Anoplophora glabripennis (Motschulsky), was studied, along with the effect of repeated daily ingestion of imidacloprid on the survival and reproductive capacity of adult females. Beetles exposed repeatedly to 50 ppm imidacloprid died in < 2-3 wk, whether dosed orally each day, or through contact exposure. Beetles given 1 microl of 50 ppm imidacloprid daily for two, three, four, or five consecutive days died sooner with increasing consecutive days: the beetles treated for 5 d all died within 15 d, while 80% of beetles treated for only 2 d lived > 8 wk. For females given 1 microl daily, across a range of doses from 2 to 50 ppm imidacloprid, the total number of viable eggs laid was reduced with increasing dosage, but percentage egg viability was not affected. Survival of females at dosages of 10 or 30 ppm/d was not significantly reduced compared with controls but these females laid 23-38% fewer viable eggs, suggesting a sublethal effect of imidacloprid. Female beetles given 1 microl/d of 40 or 50 ppm imidacloprid died more quickly than controls and viable egg production was reduced 82-93%, because of a combination of lethal and sublethal effects of intoxication.
研究了吡虫啉的施药方法和施药率对亚洲长角天牛成虫（Anoplophora glabripennis（Motschulsky））存活率的影响，以及成年雌虫反复每日摄入吡虫啉对其存活率和繁殖能力的影响。无论是每天口服施药还是接触施药，反复接触 50 ppm 吡虫啉的甲虫在<2-3 周内死亡。每天给予 1 微升 50 ppm 吡虫啉连续 2、3、4 或 5 天的甲虫随着连续天数的增加而死亡得更早：连续处理 5 天的甲虫在 15 天内全部死亡，而仅处理 2 天的 80%的甲虫存活时间超过 8 周。对于每天接受 1 微升处理的雌虫，在 2 至 50 ppm 吡虫啉的一系列剂量下，产卵总数随剂量增加而减少，但卵的存活率不受影响。与对照相比，每天 10 或 30 ppm 剂量处理的雌虫存活率没有明显降低，但这些雌虫产卵减少了 23-38%，表明吡虫啉存在亚致死效应。每天接受 1 微升 40 或 50 ppm 吡虫啉处理的雌虫比对照死亡更快，产卵量减少 82-93%，这是中毒致死和亚致死效应的综合作用。
