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Demographic analysis of the biological parameters of Spodoptera frugiperda after sublethal exposure to insecticides

文献类型： 外文期刊

作者： Lin, Lulu 1 ; Xie, Minghui 1 ; Zhong, Yongzhi 1 ; Zhang, Guangling 1 ; Zhang, Feng 3 ; Chen, Haoliang 1 ;

作者机构： 1.Anhui Acad Agr Sci, Inst Plant Protect & Agroprod Safety, Anhui CABI Joint Lab Agr Pest Control, Hefei 230031, Peoples R China

2.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100193, Peoples R China

3.Chinese Acad Agr Sci, Inst Plant Protect, MARA CABI Joint Lab Biosafety, Beijing 100193, Peoples R China

4.CABI, Beijing 100081, Peoples R China

关键词： Fall armyworm; Life table; Population projection; Tetrachlorantraniliprole; Spinetoram; Lufenuron

期刊名称：CROP PROTECTION （ 影响因子：2.8； 五年影响因子：3.0 ）

ISSN： 0261-2194

年卷期： 2024 年 180 卷

页码：

收录情况： SCI

摘要： Spodoptera frugiperda (JE Smith) is one of the most destructive pests, causing serious yield losses of corn on all continents except Europe. Low -lethal concentrations of insecticides may affect not only the survival rate but also the demographic parameters of a pest. To understand the effect of low -lethal concentrations of insecticides on S. frugiperda, the developmental parameters after low -lethal concentrations treatment by three different modes of action pesticides tetrachloroamide, spinetoram, and lufenuron were analyzed. For F0 generation, the pupal length and weight of FAW after insecticide treatment were significantly longer and heavier than that of control. For the F1 generation, the adult longevity and egg hatching rate after spinetoram and lufenuron treated was significantly shorter and lower than that of the control. While no significant effect was observed for the intrinsic rate of increase (r), finite rate of increase (lambda), and mean generation time (T) of S. frugiperda, the net reproductive rate (R0) significant decreased after the spinetoram and lufenuron treatment. Results showed tetrachloroamide, spinetoram, and lufenuron negatively affect larval survival rate, but spinetoram and lufenuron caused early maturity, and all three insecticide treatments increased egg reproduction. The results of this study suggest that low -lethal concentration exposure to insecticides negatively impacts the life table parameters of S. frugiperda, and those three insecticides from different modes of action cannot cause FAW resurgence and can be recommended as insecticides to control FAW. Those results will be helpful for researchers working on S. frugiperda management using chemical pesticides in an integrated pest management program.

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