Dissipation rate of thiacloprid and its control effect against Bemisia tabaci in greenhouse tomato after soil application

文献类型： 外文期刊

第一作者： Dong, Sa

作者： Dong, Sa;Qiao, Kang;Zhu, Yukun;Xia, Xiaoming;Wang, Kaiyun;Wang, Hongyan

作者机构：

关键词： soil application; thiacloprid; dissipation; whitefly; control effect; greenhouse tomato

期刊名称：PEST MANAGEMENT SCIENCE （ 影响因子：4.845； 五年影响因子：4.674 ）

ISSN： 1526-498X

年卷期： 2014 年 70 卷 8 期

页码：

收录情况： SCI

摘要： BACKGROUND: Thiacloprid is a chloronicotinyl insecticide that is quite effective against sucking insects. In this study, when thiacloprid was applied at two different rates (normal rate 15 kg ha(-1), double rate 30 kg ha(-1)), the systemic distribution and residue of thiacloprid as well as its control effect against whitefly (Bemisia tabaci) were investigated in greenhouse tomato after soil application. RESULTS: The results showed that thiacloprid was present in the tomato leaves until day 25, and then its amount was less than 0.005 mg kg(-1) and could not be detected. Thiacloprid residue in the tomato stems basically remained at a stable low level throughout the experimental period. Thiacloprid in soil had half-lives of 11.8 and 12.5 days for the normal treatment and the double treatment respectively. The control efficiency of whiteflies was about 90% from day 1 to day 10. This was followed by a slow decline, but efficiency was still higher than 50% until day 21. In addition, no significant differences were noted in the control effect of thiacloprid on whiteflies between the two different rates. CONCLUSION: Soil application of thiacloprid at the normal rate can effectively control whiteflies, with high efficiency and long persistence. (C) 2013 Society of Chemical Industry

分类号： S4

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