浙江农业学报 ›› 2024, Vol. 36 ›› Issue (2): 264-271.DOI: 10.3969/j.issn.1004-1524.20230268

• 动物科学 • 上一篇    下一篇

亚致死剂量氰戊菊酯对家蚕生长发育的影响

俞瑞鲜1,2(), 胡秀卿1,2, 柳新菊1,2, 汤涛1,2, 吴珉1,2, 吴声敢1,2, 赵学平1,2,*()   

  1. 1.浙江省农业科学院 农产品质量安全与营养研究所,浙江 杭州 310021
    2.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:2023-03-06 出版日期:2024-02-25 发布日期:2024-03-05
  • 作者简介:俞瑞鲜(1982—),女,浙江温岭人,硕士,助理研究员,研究方向为农药应用及环境安全评价。E-mail:yuruixian@163.com
  • 通讯作者: *赵学平,E-mail:zhaoxueping@tom.com

Effect of sublethal dosage of fenvalerate to growth and development of the silkworm, Bombyx mori

YU Ruixian1,2(), HU Xiuqing1,2, LIU Xinju1,2, TANG Tao1,2, WU Min1,2, WU Shenggan1,2, ZHAO Xueping1,2,*()   

  1. 1. Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
    2. State Key Laboratory for Managing Biotic and Chemical Threats to Quality and Safety of Agro-Products, Hangzhou 310021, China
  • Received:2023-03-06 Online:2024-02-25 Published:2024-03-05

摘要:

采用浸叶法测定了氰戊菊酯对家蚕的急性毒性和生长发育毒性,为农桑混栽区害虫防治药剂选择提供参考。急性毒性试验结果表明:氰戊菊酯对2龄起蚕的96 h-LC50为0.251~0.570 mg·L-1,属于高毒和剧毒级别。生长发育毒性试验结果表明:亚致死剂量(0.062 8、0.020 9、0.006 98、0.002 33、0.000 775 mg·L-1)的氰戊菊酯处理对家蚕眠蚕体重和发育历期有一定的影响,但随着家蚕龄期的增长其影响逐渐减弱;0.002 33、0.000 775 mg·L-1氰戊菊酯处理对家蚕化蛹率和死笼率有显著影响(P<0.05),对个体生长发育影响明显;0.062 8、0.020 9、0.006 98 mg·L-1氰戊菊酯处理组家蚕茧层量显著低于对照组(P<0.05)。可见,氰戊菊酯对家蚕具有极高的急性毒性和慢性毒性效应。因此,在农桑混栽区使用氰戊菊酯时应注意,避免雾滴漂移或其他农事活动污染桑园引起家蚕中毒。

关键词: 氰戊菊酯, 家蚕, 亚致死效应, 生长发育毒性

Abstract:

In order to provide reference for choosing pesticides in controlling pests in agro-mulberry mixed planting areas, the acute toxicity and developmental toxicity of fenvalerate to silkworm were investigated by leaf dipping method. The results of acute toxicity showed that the 96 h-LC50 for the 2nd instar larvae to fenvalerate was 0.251-0.570 mg·L-1, belonging to high and extreme level toxicity. The results of developmental toxicity showed that after the treatments at the sublethal dosages (0.062 8, 0.020 9, 0.006 98, 0.002 33 and 0.000 775 mg·L-1) of fenvalerate, the development duration and body weight of molting larvae were affected, and the influence gradually became less abvious with instar. The rate of pupation and dead cocoons of 0.002 33 and 0.000 775 mg·L-1 fenvalerate treatment groups were significantly affected (P<0.05), which significantly affected the individual growth and development. The cocoon shell weight of 0.062 8, 0.020 9 and 0.006 98 mg·L-1 fenvalerate treatment groups were significantly lower than that of the control group (P<0.05). Results showed that fenvalerate had high acute and chronic toxic effects on silkworms. Therefore, when using fenvalerate in agro-mulberry mixed planting areas, mulberry pollution from droplet drift or other agricultural activities should be avoided.

Key words: fenvalerate, Bombyx mori, sublethal effect, growth and developmental toxicity

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