Transportation behaviour of fluopicolide and its control effect against Phytophthora capsici in greenhouse tomatoes after soil application

文献类型： 外文期刊

第一作者： Jiang, Lili

作者： Jiang, Lili;Qiao, Kang;Xia, Xiaoming;Wang, Kaiyun;Wang, Hongyan;Xu, Hui

作者机构：

关键词： greenhouse tomato; Phytophthora blight; fluopicolide; soil application; high-performance liquid chromatography; control efficiency

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： 2015 年 71 卷 7 期

页码：

收录情况： SCI

摘要： BACKGROUNDFluopicolide, a novel benzamide fungicide, was registered for control of oomycete pathogens, including Phytophthora capsici. In this study, fluopicolide (5% SC) was applied in soil at rates of 1.5, 3 and 6 L ha(-1) [the normal (ND), double (DD) and quadruple dosages (QD) respectively] to investigate its transportation behaviour and control efficiency on tomato blight as a soil treatment agent. RESULTSThe results showed that fluopicolide applied to soil could be absorbed by tomato roots and then transplanted to stems and leaves. It could exist in tomato roots for more than 30 days, and in leaves and stems until day 20 after application. The decline in fluopicolide in soil was in accordance with a first-order dynamics equation, with half-lives of 5.33, 4.75 and 5.42 days for the ND, DD and QD treatments respectively. The control efficiencies of fluopicolide were better with soil application than with spraying application, and the inhibition ratios were 93.02, 97.67 and 100 on day 21 for the ND, DD and QD treatments respectively. CONCLUSIONSoil application of fluopicolide could control P. capsici in greenhouse tomatoes with high efficiency and long persistence. (c) 2014 Society of Chemical Industry

分类号： S4

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