Toxicity of selected insecticides to fall armyworms (Lepidoptera: Noctuidae) in laboratory bioassay studies
Toxicity of selected insecticides to fall armyworms (Lepidoptera: Noctuidae) in laboratory bioassay studies
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DOI：
10.2307/3496574
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发表时间：
1999-06-01
影响因子：
1.4
通讯作者：
Graves, JB
中科院分区：
文献类型：
--
作者：
Adamczyk, JJ;Leonard, BR;Graves, JB
常规杀虫剂和试验杀虫剂对草地贪夜蛾的防治效果。Smith），在实验室生物测定中进行评价。在实验室饮食生物测定，三龄的实验室菌株更容易受到新的杀虫剂，包括虫螨腈，甲氧虫酰肼，多杀菌素，虫酰肼，比推荐的杀虫剂，硫双威。在其他实验室生物测定中，秋粘虫喂食田间生长的棉花叶，白色，或铃铛，用两种推荐的杀虫剂之一，L-氯氟氰菊酯或硫双威，或四种实验杀虫剂之一，虫螨腈，甲氨基阿维菌素苯甲酸盐，甲氧虫酰肼，或多杀菌素处理。第一龄死亡率显着大于与虫螨腈，L-氯氟氰菊酯，或硫双威比未处理的控制在24小时后侵染（HAI）处理的叶子。第一龄死亡率显着更大的叶子处理所有的杀虫剂，甲氧虫酰肼除外，比未处理的对照在48 HAI。同样，在24 HAI时，除甲氧虫酰肼外，用所有杀虫剂处理的白色花的第一龄死亡率显著高于未处理的对照。在48 HAI下，用所有杀虫剂处理的白色花上的第一龄死亡率显著大于未处理的对照。在侵染后1天（DAI），各处理间铃上的五龄死亡率无显著差异。在3日龄和5日龄，五龄死亡率显着更大的所有杀虫剂处理的铃铛，甲氧虫酰肼和多杀菌素除外，比未经处理的对照。在7 DAI，第五龄死亡率显着更大的所有杀虫剂处理的铃铛，除了多杀菌素，比未经处理的对照。这些数据表明，这些推荐的和实验的杀虫剂是有效的控制早秋粘虫龄期的棉花，如果幼虫来与这些杀虫剂。
Efficacy of conventional and experimental insecticides against the fall armyworm, Spodoptera frugiperda (J. E. Smith), was evaluated in laboratory bioassays. In a laboratory diet bioassay, third instars of a laboratory-strain were more susceptible to novel insecticides, including chlorfenapyr, methoxyfenozide, spinosad, and tebufenozide, than to a recommended insecticide, thiodicarb. In other laboratory bioassays, fall armyworms were fed field grown cotton leaves, white flowers, or bells treated with one of two recommended insecticides, L-cyhalothrin or thiodicarb, or one of four experimental insecticides, chlorfenapyr, emamectin benzoate, methoxyfenozide, or spinosad. First instar mortality was significantly greater on leaves treated with chlorfenapyr, L-cyhalothrin, or thiodicarb than for the untreated control at 24 h after infestation (HAI). First instar mortality was significantly greater on leaves treated with all insecticides, with the exception of methoxyfenozide, than for the untreated control at 48 HAI. Likewise, first instar mortality was significantly greater on white flowers treated with all insecticides, with the exception of methoxyfenozide, than for the untreated control at 24 HAI. First instar mortality on white flowers treated with all insecticides was significantly greater than the untreated control at 48 HAI. Fifth instar mortality on bells was not significantly different among treatments at 1 day after infestation (DAI). At 3 and 5 DAI, fifth instar mortality was significantly greater on bells treated with all insecticides, with the exception of methoxyfenozide and spinosad, than for the untreated control. At 7 DAI, fifth instar mortality was significantly greater on bells treated with all insecticides, with the exception of spinosad, than for the untreated control. These data indicate that these recommended and experimental insecticides are effective in controlling early fall armyworm instars on cotton if larvae come in contact with these insecticides.