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丁草胺是一种高效选择性芽前除草剂。本文报导了用大鼠和小鼠对60.12％丁草胺乳剂的经口和经皮毒性测定结果。丁草胺乳剂对大鼠的经口半数致死量雌鼠为1514(1208～1897)毫克/公斤,雄鼠为1585(1259～1995)毫克/公斤;对小鼠的经口半数致死量雌鼠为1153(864～1539)毫克/公斤,雄鼠为1143(841～1553)毫克/公斤,表明丁草胺的经口急性毒性在大小鼠之间和雌雄鼠之间均较接近,无明显的种属差异或性别差异。丁草胺乳剂对大鼠的经皮半数致死量大于3210毫克/公斤。按“农药急性毒性分级标准”,丁草胺乳荊属低毒类农药。
Butachlor is a highly selective pre-emergence herbicide. This article reports the results of oral and transdermal toxicity assays of 60.12% Butachlor emulsions using rats and mice. Butachlor emulsion of 1514 (1208 ~ 1897) mg / kg for rats with oral median lethal dose and 1585 (1259 ~ 1995) mg / kg for male rats. The oral median lethal dose of females Was 1153 (864-1539) mg / kg, and male rats were 1143 (841-1553) mg / kg, indicating that the oral acute toxicity of butachlor was similar between the rats and male and female rats, with no obvious Species or gender differences. Butachlor emulsion on rats transdermal median lethal dose of more than 3210 mg / kg. Press “pesticide acute toxicity grading standards”, butachlor biloba is a low-toxic pesticides.