The sublethal concentration of acetamiprid suppresses the population growth of 2 species of wheat aphids, Sitobion miscanthi and Schizaphis graminum (Hemiptera: Aphididae)
文献类型： 外文期刊
第一作者： Li, Xinan
作者： Li, Xinan;Zhang, Wen;Zhang, Hongwei;Zhang, Xiaoya;Song, Chengze;Zhang, Pei;Li, Guangling;Zhang, Baizhong;Zhu, Xun
作者机构：
关键词： acetamiprid; fecundity; longevity; sublethal concentration; wheat aphid
期刊名称：JOURNAL OF ECONOMIC ENTOMOLOGY （ 影响因子：2.2； 五年影响因子：2.3 ）
ISSN： 0022-0493
年卷期： 2024 年
页码：
收录情况： SCI
摘要： Sitobion miscanthi and Schizaphis graminum (Rondani) are the 2 main aphid species that occur simultaneously, causing significant loss to wheat production. Acetamiprid has been used to control a variety of pests, including aphids. In this study, the sublethal effect of acetamiprid on S. miscanthi and S. graminum was evaluated using life-table analyses. The results showed that acetamiprid has a high toxicity to S. miscanthi and S. graminum with a LC50 of 1.90 and 3.58 mg/L at 24 h, respectively. The adult longevity and fecundity of S. miscanthi and S. graminum F0 generation were significantly reduced after being exposed to a sublethal concentration of acetamiprid. Additionally, the sublethal concentration of acetamiprid had negative transgenerational effects on S. miscanthi and S. graminum, which showed a significant decrease in fecundity and population life-table parameters involving age-stage-specific survival rate (sxj), age-specific survival rate (lx), and intrinsic rate of increase (r). Furthermore, the population projections showed that the total population size of S. miscanthi and S. graminum was significantly lower in the aphid group exposed to sublethal concentration of acetamiprid compared to the control group. These results suggest that sublethal concentration of acetamiprid suppresses the population growth of S. miscanthi and S. graminum. This finding is beneficial to the control of wheat aphids, and is important to fully understand the role of acetamiprid in integrated pest management.
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