Life-table parameters, functional response, flight ability, and cross-generational effects of matrine demonstrate its safety to Hippodamia variegata (Coleoptera: Coccinellidae)

文献类型： 外文期刊

第一作者： Liu, Jiamei

作者： Liu, Jiamei;Wang, Peiling;Liu, Yangtian;Liu, Bing;Dai, Changchun;Lu, Yanhui;Lu, Yanhui

作者机构：

关键词： botanical insecticide; natural enemy; toxicity; life-table parameter; flight ability

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： 2023 年 116 卷 3 期

页码：

收录情况： SCI

摘要： In Xinjiang's cotton growing area of China, previous studies have shown that matrine is a selective botanical insecticide, with high toxicity to Aphis gossypii Glover (Hemiptera: Aphididae) and low toxicity to its dominant natural enemy, Hippodamia variegata Goeze (Coleoptera: Coccinellidae). However, lethal effects alone are not sufficient evidence to justify introducing matrine into local IPM strategies. In this context, we systematically evaluated the safety of matrine to H. variegata by investigating the effects of contact and stomach toxicity of matrine on the lady beetle's life-table parameters, predatory ability, flight ability of parental adults, and cross-generational effects on life-table parameters of the predator's offspring. We found that matrine at 2,000 mg/l did not have any significant negative effects to adult fecundity, longevity, or the predatory capacity of parental adults of H. variegata. Moreover, it is the same for cross-generational effects of matrine on H. variegate. The contact toxicity of matrine significantly reduced the flight time of H. variegata males, but did not significantly affect flight time and average velocity. Our results support the view that matrine is safe to H. variegata and can be recommended for use in the local IPM strategy for control of A. gossipii.

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