浙江农业学报 ›› 2021, Vol. 33 ›› Issue (10): 1931-1938.DOI: 10.3969/j.issn.1004-1524.2021.10.17

• 农产品质量安全 • 上一篇    下一篇

新烟碱类杀虫剂对家蚕的急性毒性与风险评价

柳新菊(), 吴声敢, 安雪花, 蒋金花, 吕露, 李岗, 王菲迪, 赵学平*()   

  1. 浙江省农业科学院 农产品质量安全和营养研究所,农产品质量安全危害因子与风险防控国家重点实验室,浙江 杭州 310021
  • 收稿日期:2021-01-12 出版日期:2021-10-25 发布日期:2021-11-02
  • 通讯作者: 赵学平
  • 作者简介:赵学平,E-mail: zhaoxueping@tom.com
    柳新菊(1972—),女,河南唐河人,学士,高级实验师,主要从事农药环境与毒理研究。E-mail: liuxj@zaas.ac.cn
  • 基金资助:
    农业农村部行业标准项目(2019R19A24D02)

Acute toxicity and risk assessment of neonicotinoid insecticides to the silkworm, Bombyx mori

LIU Xinju(), WU Shenggan, AN Xuehua, JIANG Jinhua, LYU Lu, LI Gang, WANG Feidi, ZHAO Xueping*()   

  1. Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, State Key Laboratory for Managing Biotic and Chemical Threats to Quality and Safety of Agro-products, Hangzhou 310021,China
  • Received:2021-01-12 Online:2021-10-25 Published:2021-11-02
  • Contact: ZHAO Xueping

摘要:

采用浸叶法测定了6种新烟碱类杀虫剂与其他2类对照杀虫剂对家蚕的急性毒性,且根据风险商值法进行了风险评价。结果表明: 测试的6种新烟碱类杀虫剂中啶虫脒和噻虫胺对家蚕急性毒性96 h-LC50为 0.262、0.268 mg·L-1, 属剧毒级,而噻虫啉、吡虫啉、呋虫胺和噻虫嗪对家蚕急性毒性96 h-LC50分别为0.582、1.68、2.60、2.16 mg·L-1,均属高毒级。对照药剂高效氯氟氰菊酯、毒死蜱和马拉硫磷对家蚕急性毒性96 h-LC50分别为0.009 09、0.785、1 072 mg·L-1,分别属于剧毒级、高毒级和低毒级。风险评价结果表明: 除马拉硫磷对家蚕的风险可接受外,其余8种杀虫剂均为不可接受。因此,在害虫综合治理中,应谨慎使用新烟碱类杀虫剂,以避免对家蚕生产造成危害。

关键词: 新烟碱类杀虫剂, 家蚕, 急性毒性, 风险评价

Abstract:

In order to provide a scientific basis for the rational use of neonicotinoid insecticides, the acute toxicity of six neonicotinoid insecticides and other 2 kinds of control insecticides to the silkworm (Bombyx mori) were determined by using leaf dipping method, and the risk assessment was also carried out according to the risk quotient method. Results exhibited that the 96 h-LC50 values of acetamiprid and clothianidin to B. mori were 0.262 and 0.268 mg·L-1, respectively, which belonged to extremely toxic grade. The 96 h-LC50 values of thiacloprid, imidacloprid, dinotefuran and thiamethoxam to the organisms were 0.582, 1.68, 2.60 and 2.16 mg·L-1, respectively, which belonged to highly toxic grade. The 96 h-LC50 values of lambda-cyhalothrin, chlorpyrifos and malathion to the silkworms were 0.009 09, 0.785 and 1 072 mg·L-1, respectively, which belonged to extremely toxic grade, highly toxic grade and lowly toxic grade, respectively. Risk assessment results indicated that the risk of malathion to the silkworm was acceptable, and the other eight insecticides were unacceptable. Therefore, neonicotinoid insecticides should be used cautiously in integrated pest management to avoid harm for sericulture.

Key words: neonicotinoid insecticides, silkworm, acute toxicity, risk assessment

中图分类号: