Systemic control efficacy of neonicotinoids seeds dressing on English grain aphid (Hemiptera: Aphididae)
文献类型： 外文期刊
作者： Li, Yao-Fa 1 ; An, Jing-Jie 1 ; Dang, Zhi-Hong 1 ; Pan, Wen-Liang 1 ; Gao, Zhan-Lin 1 ;
作者机构： 1.Hebei Acad Agr & Forestry Sci, Plant Protect Inst, IPM Ctr Hebei Prov,Minist Agr, Key Lab Integrated Pest Management Crops Northern, Baoding 071000, Peoples R China
关键词： Wheat; Seed dressing; Sitobion avenae; Neonicotinoids; Thiamethoxam; Clothianidin
期刊名称：JOURNAL OF ASIA-PACIFIC ENTOMOLOGY （ 影响因子：1.303； 五年影响因子：1.427 ）
ISSN： 1226-8615
年卷期： 2018 年 21 卷 1 期
页码：
收录情况： SCI
摘要： English grain aphid, Sitobion avenae (Fabricius) (Hemiptera: Aphididae), is an important pest of wheat (Triticum aestivum L.), and is usually controlled by intensive foliar sprays of pesticides under field conditions. In order to reduce labour costs and increase the utilization of pesticides, neonicotinoids seed treatment was studied as a simple and accurate control technology for S. avenae. We evaluated the mortality of imidacloprid, acetamiprid, thiamethoxam, clothianidin, nitenpyram and dinotefuran to the English grain aphid by seed dressing methods in the laboratory, and found that the toxicity with that LC50 of clothianidin (20.97 a.i. g/100 kg seeds) and thiamethoxam (28.84 a.i. g/100 kg seeds) to S. avenae are higher than other neonicotinoids. LC50 values of nitenpyram, imidacloprid and acetamiprid ranged between 120 a.i. g/100 kg seeds and 210 a.i. g/100 kg seeds. Dinotefuran showed the lowest toxicity with LC50 value 565.76 a.i. g/100 kg seeds to English grain aphid. Field plot experiments were conducted to investigate the control efficacy of neonicotinoids seed treatment for the aphid, and the effects on growth of wheat. Field observations indicated that clothianidin and thiamethoxam provided the better control efficacy on the English grain aphid than imidacloprid, and had no influence on wheat seedling emergence. These results showed that seed treatment by neonicotinoids was effective against S. avenae throughout the growth period, furthermore, thiamethoxam and clothianidin were the effective and safe alternative options for S. avenae management in the crop.
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