| 许冬，丛胜波，武怀恒，黄民松，徐雪，万鹏*.氟啶虫胺腈对棉蚜的生物活性及对棉花的安全性[J].植物保护,2016,42(1):219-223. |
| 氟啶虫胺腈对棉蚜的生物活性及对棉花的安全性 |
| Toxicity of sulfoxaflor against Aphis gossypii Glover and its bio-safety to cotton |
| 投稿时间：2014-11-26 修订日期：2015-01-09 |
| DOI： |
| 中文关键词: 氟啶虫胺腈 棉蚜 毒力 棉花 安全性 |
| 英文关键词:Sulfoxaflor Aphis gossypii toxicity cotton safety |
| 基金项目:公益性行业(农业)科研专项(201203038) |
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| 中文摘要: |
| 本文通过叶片浸渍法研究了氟啶虫胺腈对棉蚜的室内活性, 同时分析了其对棉花的安全性。室内毒力测定结果表明, 氟啶虫胺腈处理棉蚜24 h的LC50 和LC90 为1.98 mg/L和26.02 mg/L, 显著低于吡虫啉的8.69 mg/L和132.68 mg/L, 毒效比达4.39; 处理48 h后, 氟啶虫胺腈对棉蚜仍表现出很高的杀虫活性, 且显著高于吡虫啉。棉花安全性试验结果表明, 在使用浓度40~160 g/hm2范围内喷施500 g/kg氟啶虫胺腈水分散粒剂, 对棉花不同时期的叶色、株高、果枝层以及棉蕾脱落都未造成显著性的影响。 |
| 英文摘要: |
| Bioactivity of sulfoxaflor against Aphis gossypii Glover was determined by using leaf-dip method and its bio-safety to cotton was also tested with field trials. The results showed that LC50 and LC90 of sulfoxaflor against cotton aphid were 1.98 mg/L and 26.02 mg/L after treatment for 24 h, respectively, significantly lower than that of imidacloprid, which were 8.69 mg/L and 132.68 mg/L, respectively. The toxicity ratio of both insecticides was 4.39. After 48 h, sulfoxaflor still possessed a high insecticidal activity against cotton aphid. Field trials demonstrated that sulfoxaflor had no harm to cotton. Leaf color, plant height, fruit-branch layer and cotton square abscission in plots sprayed sulfoxaflor 500 g/kg WG at the recommended dosages had no significant difference with those without treatment by insecticides. |
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