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Population dynamics of the diamondback moth, Plutella xylostella (L.), in northern China: the effects of migration, cropping patterns and climate

文献类型： 外文期刊

作者： Zhu, Liuhong 2 ; Li, Zhenyu 3 ; Zhang, Shufa 4 ; Xu, Baoyun 1 ; Zhang, Youjun 1 ; Zalucki, Myron P. 5 ; Wu, Qingjun 1 ; Y 1 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Vegetables & Flowers, Dept Plant Protect, Beijing 100081, Peoples R China

2.Guizhou Univ, Inst Crop Protect, Guiyang 550025, Guizhou, Peoples R China

3.Guangdong Acad Agr Sci, Inst Plant Protect, Guangzhou, Guangdong, Peoples R China

4.Hebei North Univ, Zhangjiakou, Peoples R China

5.Univ Queensland, Sch Biol Sci, Brisbane, Qld, Australia

关键词： Plutella xylostella; population dynamics; DYMEX; phenology; forecast; control strategy

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： 2018 年 74 卷 8 期

页码：

收录情况： SCI

摘要： BACKGROUNDThe diamondback moth, Plutella xylostella (L.), is the most widely distributed pest of Brassica vegetables. Control of P. xylostella has relied on insecticides and it has developed resistance to most insecticides. Although research has clarified the resistance status of P. xylostella and the mechanisms of its resistance in northern China, little work has been conducted on long-term population dynamics in the key vegetable-growing areas of the region. RESULTSWe reviewed and summarized the history of P. xylostella field management practices in northern China (Haidian, Changping, Xuanhua and Zhangbei). Moths were caught in pheromone traps throughout the cropping season and P. xylostella phenology and the general trends in abundance were analysed using DYMEX modelling software. The initial input in the spring determined population size in all years. The seasonal phenology and variation in abundance in most years and sites were simulated, suggesting that the suitable climate creates the conditions for population outbreaks, and growers' actual management level (spraying and crop hygiene) influenced population abundance. CONCLUSIONBased on climate and using the timing of the initial peak in pheromone trap captures as a biofix, the timing of emergence of the next generation can be forecast, and more effective scouting and regional management strategies against this pest can be developed. (c) 2018 Society of Chemical Industry

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