| 摘要 |
PURPOSE:To obtain a herbicidal composition applicable with a small amount, having enlarged herbicidal spectrum by combining an N- benzoxazinyltetrahydroisoindoledione derivative having herbicidal effects with a phenoxypropionic acid derivative of herbicide. CONSTITUTION:A herbicidal composition comprising 2-[7-fluoro-3,4-dihydro-3- oxo-4-(2-propynyl)-2H-1,4-benzoxazin-6-yl]-4,5,6,7-tetrahydro-1H-isoin dole-1,3(2H)- dione shown by formula I and a phenoxypropionic acid derivative shown by formula II (R1 is group shown by formula III, formula IV, formula V or formula VI; R2 is <=4C alkyl) as active ingredients. Fluazifop-butyl or fenoxaprop-ethyl may be cited as the compound shown by formula II and the ratio of the compound is preferably about 0.2-20 pts.wt. based on 1 pt.wt. of the compound shown by formula I. The composition can destroy a wide range of weeds and has synergistic effects. |
