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首页> 美国卫生研究院文献>Journal of Insect Science >Evaluation of the Susceptibility of the Pea Aphid Acyrthosiphon pisum to a Selection of Novel Biorational Insecticides using an Artificial Diet
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Evaluation of the Susceptibility of the Pea Aphid Acyrthosiphon pisum to a Selection of Novel Biorational Insecticides using an Artificial Diet

机译：评价豌豆蚜虫蚜虫蚜虫对使用人工饮食选择新型生物合理杀虫剂的敏感性

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An improved technique was developed to assay the toxicity of insecticides against aphids using an artificial diet. The susceptibility of the pea aphid Acyrthosiphon pisum (Harris) (Hemiptera: Aphidoidea) was determined for a selection of novel biorational insecticides, each representing a novel mode of action. Flonicamid, a novel systemic insecticide with selective activity as feeding blocker against sucking insects, showed high toxicity against first-instar A. pisum nymphs with an LC50 of 20.4 μg/ml after 24 h, and of 0.24 µg/ml after 72 h. The toxicity was compared with another feeding blocker, pymetrozine, and the neonicotinoid, imidacloprid. In addition, four insect growth regulators were tested. The chitin synthesis inhibitor flufenoxuron, the juvenile hormone analogue pyriproxyfen, and the azadirachtin compound Neem Azal-T/S showed strong effects and reduced the aphid population by 50% after 3 days of treatment at a concentration of 7–9 µg/ml. The ecdysone agonist tested, halofenozide, was less potent. In conclusion, the improved aphid feeding apparatus can be useful as a miniature screening device for insecticides against different aphid pests. The present study demonstrated rapid and strong toxicity of flonicamid, and other biorational insecticides towards A. pisum.
机译：开发了一种改进的技术来使用人工饮食来测定杀虫剂对蚜虫的毒性。确定了豌豆蚜虫蚜虫（Harris）（半翅目：蚜虫）的药敏性，以选择新型的生物合理的杀虫剂，每种杀虫剂都代表一种新颖的作用方式。 Flonicamid是一种新型的系统性杀虫剂，具有选择性作用，可作为对吮吸昆虫的饲料阻滞剂，对初生A. pisum若虫若虫表现出高毒性，24小时后LC50为20.4μg/ ml，72小时后LC50为0.24 µg / ml。将其毒性与另一种喂养阻滞剂pymetrozine和新烟碱类吡虫啉进行了比较。另外，测试了四个昆虫生长调节剂。甲壳素合成抑制剂氟苯氧隆，少年激素类似物吡吡氧芬和印苦dir子素化合物Neem Azal-T / S表现出强效作用，并在7–9 µg / ml的浓度下处理3天后蚜虫数量减少了50％。测试的蜕皮激素激动剂氟苯乙脲效价较低。总之，改进的蚜虫喂食装置可用作杀虫剂针对不同蚜虫害虫的微型筛选装置。本研究证明了氟尼草胺和其他生物合理的杀虫剂对烟曲霉具有快速而强烈的毒性。

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