| 刘永强1,潘洪生1,2, 陆宴辉1*.苜蓿盲蝽属三种害虫对环氧虫啶的敏感性[J].植物保护,2017,43(6):144-146. |
| 苜蓿盲蝽属三种害虫对环氧虫啶的敏感性 |
| The susceptibility of three Adelphocoris species to cycloxaprid |
| 投稿时间：2017-03-17 修订日期：2017-05-14 |
| DOI： |
| 中文关键词: 新烟碱杀虫剂 苜蓿盲蝽属 毒力 酶抑制剂 |
| 英文关键词:neonicotinoid Adelphocoris insecticide toxicity enzyme inhibitor |
| 基金项目:国家重点研发计划(2017YFD0201900); 国家现代农业产业技术体系建设专项资金(CARS-18-12) |
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| 中文摘要: |
| 环氧虫啶是我国自主研发的一种新型的新烟碱杀虫剂,主要用于防治刺吸式口器害虫。本文采用点滴法测定了环氧虫啶对中黑盲蝽、苜蓿盲蝽、三点盲蝽的毒力,结果表明,三种盲蝽对环氧虫啶均具有较高的敏感性,其中中黑盲蝽的敏感性最高,LD50值为2.03 ng/头,其次为苜蓿盲蝽和三点盲蝽,LD50分别为3.12和3.34 ng/头。多功能氧化酶抑制剂PBO能明显增加环氧虫啶对三种盲蝽的毒力,谷胱甘肽S-转移酶抑制剂DEM只在中黑盲蝽上对环氧虫啶表现出增效作用,而羧酸酯酶抑制剂TPP未显示增效作用。这说明,环氧虫啶具有防治苜蓿盲蝽属三种害虫的应用潜力,细胞色素P450-单加氧酶可能在环氧虫啶代谢中起重要作用。 |
| 英文摘要: |
| Cycloxaprid is a novel self-developed neonicotinoid insecticide for the control of sucking insect pests. Three Adelphocoris species (Hemiptera: Miridae), A. suturalis, A. lineolatus, and A.fasciaticollis, are important insect pests in cotton, alfalfa and other crops in China. Bioassays of cycloxaprid showed that A.suturalis (LD50: 2.03 ng/adult) was more susceptible to cycloxaprid than A. lineolatus and A. fasciaticollis with LD50 values of 3.12 and 3.34 ng/adult, respectively. The toxicity of cycloxaprid to three Adelphocoris species could be synergized by piperonyl butoxide (PBO), but generally not by TPP. Inhibitor of glutathione S-transferase (GST), the DEM, showed synergism only to cycloxaprid against A.suturalis. The results suggest that cycloxaprid is a candidate for controlling Adelphocoris species. Cytochrome P450-dependent monooxygenase might play an important role in the metabolism of cycloxaprid in these three mirid bugs. |
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