Decrease of Insecticide Resistance Over Generations Without Exposure to Insecticides in Nilaparvata lugens (Hemipteran: Delphacidae)
文献类型: 外文期刊
第一作者: Yang, Yajun
作者: Yang, Yajun;Dong, Biqin;Xu, Hongxing;Zheng, Xusong;Tian, Junce;Lu, Zhongxian;Heong, Kongleun
作者机构:
关键词: Nilaparvata lugens;non-insecticide;reversal;resistance;enzyme
期刊名称:JOURNAL OF ECONOMIC ENTOMOLOGY ( 影响因子:2.381; 五年影响因子:2.568 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: The brown planthopper, Nilaparvata lugens (St?l), is one of the most important insect pests on paddy rice in tropical and temperate Asia. Overuse and misuse of insecticides have resulted in the development of high resistance to many different insecticides in this pest. Studies were conducted to evaluate the change of resistance level to four insecticides over 15 generations without any exposure to insecticides in brown planthopper. After 15 generations' rearing without exposure to insecticide, brown planthopper could reverse the resistance to imidacloprid, chlorpyrifos, fipronil, and fenobucarb. The range and style of resistance reversal of brown planthopper differed when treated with four different insecticides. To monitor potential changes in insect physiological responses, we measured the activity of each of the three selected enzymes, including acetylcholinesterases (AChE), general esterases (EST), and glutathione S-transferases. After multiple generations' rearing without exposure to insecticide, AChE and EST activities of brown planthopper declined with the increased generations, suggesting that the brown planthopper population adjusted activities of EST and AChE to adapt to the non-insecticide environment. These findings suggest that the reducing, temporary stop, or rotation of insecticide application could be incorporated into the brown planthopper management.
分类号: Q969.9
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