Ovicidal activity of organophosphate, oxadiazine, neonicotinoid and insect growth regulator chemistries on the northern strain plum curculio, Conotrachelus nenuphar
Ovicidal activity of organophosphate, oxadiazine, neonicotinoid and insect growth regulator chemistries on the northern strain plum curculio, Conotrachelus nenuphar
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DOI：
10.1673/031.008.2901
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发表时间：
2008-04-09
影响因子：
2.2
通讯作者：
Wise, John C.
中科院分区：
文献类型：
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作者：
Hoffmann, Eric J.;Middleton, Samantha M.;Wise, John C.
建立了一种测定有机磷、新烟碱类化合物噻虫啉、甲硫氧草胺和氯硫菌素、恶二嗪吲哚杀虫威以及昆虫生长调节剂新鲜隆和吡虫啉对李小实蝇的体外杀卵效果的方法。该方法的基线存活率为88%。李卵对甲胺磷最为敏感。噻虫啉、氯硫菌素和甲壳素合成抑制剂诺瓦隆的LC_(50)值低于100ppm。在100ppm时，甲氧西林、吲哚灭威和吡虫啉对卵子没有杀灭作用。辛醇-水分配系数，log Kow，似乎是新烟碱类化合物内杀卵活性的重要指标。这种新的生物测定方法消除了昆虫-化学和植物-化学相互作用的混淆，结果突出了感染后治疗方法对李树花卉管理的有效性。
An in vitro method was developed for assessing ovicidal effects of the organophosphate azinphos-methyl, the neonicotioids thiacloprid, thiamethoxam and clothianidin, the oxadiazine indoxacarb and the insect growth regulators novaluron and pyriproxifen on the plum curculio, Conotrachelus nenuphar (Herbst)(Coleoptera: Curculionidae). The baseline survivorship of this method was 88 percent. Plum curculio eggs were most sensitive to azinphos-methyl. Thiacloprid, clothianidin and the chitin synthesis inhibitor, novaluron, had LC50 values below 100 ppm. Thiamethoxam, indoxacarb and pyriproxifen were not ovicidal at 100 ppm. Octanol-water partitioning coefficients, log Kow, appeared to be an important indicator of ovicidal activity within the neonicotinoids. This new bioassay method eliminates the confounding of the insect-chemical and plant-chemical interactions and the results highlight the utility of a post-infestation curative approach to plum curculio management.