2种酰胺类杀菌剂对4种非靶标生物的急性毒性  

Acute Toxicity of Two Carboxamide Fungicides to Four Non-target Organisms

作　　者：杨石有 张蕊 孔琼[1] 蒲金基[2] 袁盛勇[1] 张贺[2] YANG Shiyou;ZHANG Rui;KONG Qiong;PU Jinji;YUAN Shengyong;ZHANG He(College of Biological and Agricultural Sciences,Honghe University Key Laboratory for Research and Utilization of Characteristic Biological Resources in Southern Yunnan,Yunnan Mengzi 661199,China;Environment and Plant Protection Institute,Haikou571101,China)

机构地区：[1]红河学院生物科学与农学学院云南省高校滇南特色生物资源研究与利用重点实验室,云南蒙自661199 [2]中国热带农业科学院环境与植物保护研究所,海口571101

出　　处：《现代农药》2022年第6期42-46,50,共6页MODERN AGROCHEMICALS

基　　金：红河学院科研基金博士专项项目(XJ22B16);中国热带农业科学院基本科研业务费(1630042022009)。

摘　　要：为评价噻呋酰胺和环酰菌胺对4种非靶标生物的急性毒性,本试验采用饲喂法、浸叶法、半静态法、人工土壤接触法分别测定了2种酰胺类杀菌剂对意大利工蜂、家蚕、斑马鱼、赤子爱胜蚯蚓的急性毒性。结果表明,噻呋酰胺和环酰菌胺对意大利工蜂经口毒性48 h-LD_(50)值分别为6.51和9.12μg/蜂;对家蚕96 h-LC_(50)值分别为375.71和5802.32 mg/L;对斑马鱼96 h-LC_(50)值分别为2.95和2.39 mg/L;对赤子爱胜蚯蚓14 d-LC_(50)值分别为171.73和383.37 mg/kg干土。依据国标《化学农药环境安全评价试验准则》(GB/T31270—2014)的毒性等级划分标准,噻呋酰胺和环酰菌胺对家蚕、赤子爱胜蚯蚓的急性毒性为低毒,对意大利工蜂、斑马鱼的急性毒性为中毒。以上结果说明噻呋酰胺和环酰菌胺对4种非靶标生物安全。该结果可为2种药剂的使用及环境风险评估提供理论依据。In order to evaluate the acute toxicity of thifluzamide and fenhexamid to four non-target organisms,the acute toxicity of the two carboxamide fungicides to Apis melliifera,Bombyx mori,Brachydanio rerio,Eisenia foetida were determined by feeding method,leaf dipping method,semi-static method and soil contact method,respectively.The results showed that the 48 h-LD_(50) value of thifluzamide and fenhexamid to A.melliifera were 6.51 and 9.12μg/bee respectively.The 96 h-LC_(50)value of test substances to B.mori were 375.71 and 5802.32 mg/L,and 96 h-LC_(50)value of test substances to B.rerio were 2.95 and 2.39 mg/L.The 14 d-LC_(50) value of test substances to E.foetida were 171.73 and 383.37 mg/kg soil.According to the test guidelines on environmental safety assessment for chemical pesticides(GB/T 31270—2014),the acute toxicity of thiofuramid and fenhexamid to B.mori and E.foetida were low toxicity,and medium toxicity to A.melliifera and B.rerio.Taken together,thifluzamide and fenhexamid were safe to four non-target organisms.The results could provide a theoretical basis for the use of the two agents and environmental risk assessment.

关 键 词：噻呋酰胺 环酰菌胺 非靶标生物 急性毒性 

分 类 号：TQ455[化学工程—农药化工] X171.5[环境科学与工程—环境科学]