Contact toxicity of a new acaricide, SYP-9625, to the natural predator, Chrysopa pallens

文献类型： 外文期刊

第一作者： Feng, Yanjiao

作者： Feng, Yanjiao;Zhang, Lisheng;Chen, Hongyin;Wang, Mengqing;Liu, Chenxi;Li, Yuyan;Mao, Jianjun;Song, Yuquan

作者机构：

关键词： Contact toxicity; Acaricide; SYP-9625; Chrysopa pallens

期刊名称：JOURNAL OF ASIA-PACIFIC ENTOMOLOGY （ 影响因子：1.303； 五年影响因子：1.427 ）

ISSN： 1226-8615

年卷期： 2021 年 24 卷 2 期

页码：

收录情况： SCI

摘要： SYP-9625 is a novel acaricide synthesized by using cyenopyrafen as lead compound. It is characterized by high acaricidal activity and low toxicity to mammals and has been widely used in Chinese farming areas. However, to date, the toxicity of SYP-9625 to natural enemy insects remained unclear. Here, we evaluated the effects of SYP-9625 on survival, growth, metamorphosis and reproduction of a common natural predator, Chrysopa pallens. Contact toxicity bioassay revealed that SYP-9625 had no significant detrimental impacts on egg hatchability, larval survival and duration, pupation rate, pupal mass, emergence rate, digestive enzyme activity, reproductive output and offspring quality, but drastically reduced adult survival rate, adult lifespan, secondary follicle size and vitellogenin (Vg) transcripts by 27.8%, 15.4%, 33.4% and 59.4%, respectively, suggesting a low contact toxicity of SYP-9625 to C. pallens. This study will strengthen the compatibility of chemical acaricide and natural enemy insects in integrated pest management.

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