农药学学报2023，Vol.25Issue(6)：1295-1302,8.DOI:10.16801/j.issn.1008-7303.2023.0086
八种常用杀虫剂对多异瓢虫不同虫态的安全性评价
Safety evaluation of eight commonly used insecticides on different stages of Hippodamia variegata(Goeze)
摘要
Abstract
Hippodamia variegata(Goeze)is one of the dominant predatory natural enemies in Xinjiang cotton fields.In order to clarify the toxicity of eight commonly used insecticides in cotton fields to eggs,larvae,pupae,and adults of H.variegata,the effects of different doses of insecticides on the survival,hatching,and eclosion rate of H.variegata were measured by filter paper contact and dipping methods.The results showed that avermectin had the lowest toxicity to the eggs and pupae of H.variegata with the LC50 values of 9.36 and 20.98 mg/L,respectively,and the highest toxicity to the larva with the LC50 value of 4.68 mg/L.The highest toxicity of nitenpyram to the eggs and pupae was observed with the LC50 values of 1.16 and 1.02 mg/L,respectively.Imidacloprid showed the lowest toxicity to adults and larvae with the LC50 values of 665.50 and 460.51 mg/L,respectively.The toxicity of spirotetramat to adults was the highest with the LC50 value of 5.67 mg/L.After treatment with different insecticides,the hatching rate and eclosion rate of H.variegata gradually decreased with the increase of insecticide dose,and the mortality rate gradually increased.Imidacloprid,acetamiprid and pymetrozine were safe for adults of H.variegata.Imidacloprid,flonicamid,and pymetrozine were safe for the larvae of H.variegata.The safety of nitenpyram and spirotetramat was poor against eggs,larvae,pupae,and adults of H.variegata.In the control of pests in cotton fields,we should not apply or apply low doses of nitenpyram and spirotetramat,and appropriately apply imidacloprid and acetones.Try to bypass the occurrence peak period of each natural enemy insect state.关键词
棉花/天敌昆虫/多异瓢虫/杀虫剂/毒性/安全性评价Key words
cotton/natural enemy insect/Hippodamia variegata(Goeze)/insecticides/toxicity/safety evaluation分类
化学工程引用本文复制引用
帕提玛·乌木尔汗,丁瑞丰,马德英,赛米·吾斯曼..八种常用杀虫剂对多异瓢虫不同虫态的安全性评价[J].农药学学报,2023,25(6):1295-1302,8.基金项目
农业农村部西北荒漠绿洲作物有害生物综合治理重点实验室开放基金资助课题(2017TC003),中国博士后科学基金项目(244205). Supported by the Open Fund of the Key Laboratory for Comprehensive Control of Crop Pests in Northwest Desert Oasis of the Ministry of Agriculture and Rural Affairs(No.2017TC003),Project of China Postdoctoral Science Foundation(No.244205). （2017TC003）
