李冬植¹,
王凯^1,2,
徐莉¹,
柴婷婷¹,
崔峰¹,
邱立红¹,
郑明奇¹,
覃兆海¹,
王成菊^1,,
1. 中国农业大学, 北京 100193;
2. 沈阳农业大学, 沈阳 110161

作者简介: 李冬植(1989-),男,博士研究生,研究方向为农药毒理与使用技术,E-mail:lidongzhi1989@163.com.

通讯作者: 王成菊,wangchengju@cau.edu.cn

基金项目: 国家重点研发计划(2016YFD0200504)


中图分类号: X171.5

Acute Toxicity of Guadipyr to Non-target Organisms

Li Dongzhi¹,
Wang Kai^1,2,
Xu Li¹,
Chai Tingting¹,
Cui Feng¹,
Qiu Lihong¹,
Zheng Mingqi¹,
Qin Zhaohai¹,
Wang Chengju^1,,
1. China Agricultural University, Beijing 100193, China;
2. Shenyang Agricultural University, Shenyang 110161, China

Corresponding author: Wang Chengju,wangchengju@cau.edu.cn

CLC number: X171.5

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摘要:戊吡虫胍是一种从烟碱类和缩胺脲类杀虫剂活性结构拼接而成的系列化合物中筛选出来的新型杀虫剂,目前戊吡虫胍对非靶标生物的毒性研究报道较少。为探究戊吡虫胍的环境安全性,采用生物毒性试验方法测定了其对斜生栅藻(Scenedesmus obliquus)、大型溞(Daphnia magna)、家蚕(Bombyx mori)、斑马鱼(Brachydanio rerio)、赤子爱胜蚯蚓(Eisenia fetide)、非洲爪蟾(Xenopus laevis)、赤眼蜂(Trichogramma nubilale)、意大利蜜蜂(Apis mellifera)、日本鹌鹑(Coturnix coturnix japonica)共9种非靶标生物的急性毒性。结果显示戊吡虫胍对斜生栅藻和大型溞的半数有效浓度(EC₅₀)分别为8.79 mg·L^-1和10.97 mg·L^-1,对家蚕、斑马鱼、赤子爱胜蚯蚓和非洲爪蟾的半数致死浓度(LC₅₀)分别为2.32 mg·L^-1、13.74 mg·L^-1、>100 mg·kg^-1和19.30 mg·L^-1,对赤眼蜂的安全系数为0.16~0.031,对蜜蜂急性触杀和急性摄入毒性分别为51.82 μg·bee^-1和10.8×10³ mg·L^-1,对鹌鹑的急性经口和急性饲喂毒性LC₅₀分别为>1 000 mg·kg^-1和>2×10³ mg·kg^-1。按照最新国标(GB/T31270—2014)化学农药环境安全评价准则的毒性等级划分,戊吡虫胍除了对家蚕和赤眼蜂为高毒和极高风险外,对其余非靶生物均为低毒。
关键词: 戊吡虫胍/
非靶标生物/
急性毒性

Abstract:Guadipyr is a novel insecticide, which contains both neonicotinoid and oxiadiazine insecticidal activity moieties. Its toxicity to the non-target organisms remains largely unknown till now. In this study, the toxicity of guadipyr to nine organisms including algae (Scenedesmus obliquus), Daphnia magna, silkworm (Bombyx mori), zebrafish (Brachydanio rerio), earthworm (Eisenia fetide), tadpole (Xenopus laevis), parasitoid (Trichogramma nubilale), bee (Apis mellifera) and quail (Coturnix coturnix japonica) was determined. The median effective concentration (EC₅₀) of guadipyr to algae and Daphnia magna was found to be 8.79 mg·L^-1 and 10.97 mg·L^-1, respectively; the median lethal concentration (LC₅₀) of guadipyr to silkworm, zebrafish, earthworm and frog was 2.32 mg·L^-1, 13.74 mg·L^-1, >100 mg·kg^-1 and 19.3 mg·L^-1, respectively; the risk quotient of guadipyr to parasitoid was 0.0433; the median lethal dose (LD₅₀) for contact toxicity and LC₅₀ for oral toxicity to bee were 51.82 μg·bee^-1 and 10.8×10³ mg·L^-1, respectively. The LD₅₀ for oral toxicity and LC₅₀ for dietary toxicity to quail (Coturnix coturnix japonica) were >1 000 mg·kg^-1 and >2 000 mg·L^-1, respectively. According to the GB/T 31270-2014, guadipyr is classified as a low-toxicity compound for most of the non-target organisms, and it exhibits high toxicity and risk only to silkworm and parasitoid.
Key words:guadipyr/
non-target organisms/
toxicity.