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Tomato Yellow Leaf Curl Virus Infection Alters Bemisia tabaci MED (Hemiptera: Aleyrodidae) Vulnerability to Flupyradifurone

文献类型： 外文期刊

作者： Liu, Baiming 1 ; Preisser, Evan L. 2 ; Jiao, Xiaoguo 3 ; Zhang, Youjun 4 ;

作者机构： 1.Tianjin Acad Agr Sci, Inst Plant Protect, Tianjin 300381, Peoples R China

2.Univ Rhode Isl, Dept Biol Sci, Kingston, RI 02881 USA

3.Hubei Univ, Ctr Behav Ecol & Evolut, Sch Life Sci, State Key Lab Biocatalysis & Enzyme Engn, Wuhan 430062, Peoples R China

4.Chinese Acad Agr Sci, Inst Vegetables & Flowers, Dept Entomol, Beijing 100081, Peoples R China

关键词： insecticide; Sivanto; tolerance; Bemisia; Tomato yellow leaf curl virus

期刊名称：JOURNAL OF ECONOMIC ENTOMOLOGY （ 影响因子：2.381； 五年影响因子：2.568 ）

ISSN： 0022-0493

年卷期： 2020 年 113 卷 4 期

页码：

收录情况： SCI

摘要： The whitefly, Bemisia tabaci Gennadius, is a major phloem-feeding pest of agricultural crops that is also an important vector of many plant diseases. The B. tabaci Mediterranean (`MED') biotype is a particularly effective vector of Tomato yellow leaf curl virus (TYLCV), a devastating plant pathogen. Although insecticides play an important role in the control of MED and TYLCV, little is known about howTYLCV infection affects MED susceptibility to insecticides. We conducted research addressing how MED susceptibility to flupyradifurone, the first commercially available systemic control agent derived from the butenolide class of insecticides, was affected by TYLCV infection. We first conducted bioassays determining the LC15 and LC50 for control and viruliferous MED feeding on either water- or insecticide-treated plants. We next measured several demographic parameters of control and viruliferous MED exposed to either insecticide- or water-treated plants. TYLCV infection increased MED tolerance of flupyradifurone: the LC15 and LC50 of viruliferous MED were double that of uninfected MED. Viral infection also altered MED demographic responses to flupyradifurone, but in an inconsistent manner. Although the ability of TYLCV and other persistently transmitted viruses to benefit Bemisia via manipulation of host plant defense is well known, this appears to be the first example of virally mediated changes in vector susceptibility to an insecticide.

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