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| 烯啶虫胺对烟粉虱的使用技术及抗性风险评估研究 | |
| 引用本文： | 胡荣利,朱伟,祝树德.烯啶虫胺对烟粉虱的使用技术及抗性风险评估研究[J].江西植保,2012(4):359-365. |
| 作者姓名： | 胡荣利 朱伟 祝树德 |
| 作者单位： | 1. 扬州大学 园艺与植物保护学院,江苏 扬州 225009 2. 扬州市植保植检站,江苏 扬州225002 3. 宝应县植保植检站,江苏 扬州225002 |
| 基金项目： | 江苏省自然科学基金项目（BK2006067） |
| 摘 要： | 采用室内生物活性测定法系统测定了烯啶虫胺对烟粉虱不同虫态的毒力、成虫持效性、抗性风险评估和不同施药方法田间药效试验。结果表明,烯啶虫胺对烟粉虱低龄若虫和高龄若虫均表现出较高毒力,对成虫也有一定毒力,而对卵效果较差。烯啶虫胺水剂100 mg/L处理时对烟粉虱成虫1～15 d的校正死亡率在80.18%～92.13%之间,随着时间的延长,烯啶虫胺对烟粉虱的防效降低。烯啶虫胺喷雾和灌根方法效果较好,从速效性来说,喷雾好于灌根,从持效性来说,灌根优于喷雾,两种方法均显著高于单叶施药和涂茎法。经过8代6次选育,烟粉虱对烯啶虫胺抗性发展缓慢,与选育前相比敏感性降低2.653倍,烟粉虱对烯啶虫胺的抗性现实遗传力为0.102 5,在50%～90%的筛选压力下,要获得10倍抗性,需要9～21代,表明烟粉虱对烯啶虫胺有产生抗性的风险。 |
| 关 键 词： | 烟粉虱 烯啶虫胺 生物活性测定 使用技术 风险评估 |
Studies of Application Techniques and Risk Assessment of Bemisia Tabaci (Gennadius) Resistance to Nitenpyram |
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| HU Rongli,ZHU Wei,ZHU Shude.Studies of Application Techniques and Risk Assessment of Bemisia Tabaci (Gennadius) Resistance to Nitenpyram[J].Jiangxi Plant Protection,2012(4):359-365. | |
| Authors: | HU Rongli ZHU Wei ZHU Shude |
| Institution: | 1.College of Horticulture and Plant Protection,Yangzhou University,Yangzhou 225009,China. 2.Plant Protection Station of Yangzhou City,Yangzhou 225002,China. 3.Plant Protection Station of Baoyin County,Yangzhou 225002,China) |
| Abstract: | Laboratory bioassay was used to test the control virulence,resistance risk assessment,different application methods of nitenpyram against Bemisia tabaci.The results showed that the insecticide was highly toxic to young and old Bemisia tabaci nymph,and was also effective to the adults,but had poor effects to the egg. The corrected mortality of nitenpyram at 100 mg/L to Bemisia tabaci could reach by 80.18%～92.13%.The efficiency of nitenpyram with spray and irrigating method were significantly higher than the single leaf spraying and stem brushing.The resistant of B.tabaci to nitenpyram was slow after 8th generation breeding and the sensitivity reduced 2.653 times.The insect would require reproducing 9 to 21 generations for 10fold resistance to nitenpyram under the selecting pressure of 50%～90% mortality.It showed that the B.tabaci had risk of resistant to nitenpyram. |
| Keywords: | Bemisia tabaci nitenpyram biological activity application techniques risk accessment |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |