Herbicide combinations with improved residual activity comprising (a) compounds of the formula
wherein R1 is selected from the group consisting of lower alkyl having from 2 to 6 carbon atoms, haloalkyl, benzyl and substituted benzyl, phenethyl, pyridylmethyl, cycloalkyl having from 3 to 6 carbon atoms, and haloalkenyl having from 3 to 6 carbon atoms, and R2 and R3 are each independently selected from the group consisting of C2-C6 alkyl, C2-C6 alkenyl, and C3-C8 cycloalkyl, provided furtherthat R2 and R3 can join with the nitrogen to which they are attached to form a 5 to 6 carbon ring structure, and (b) an herbicidally effective amount of a chloroacetanilide having the formula
in which R4 is a straight or branched chain lower alkyl group having from 1 to 6 carbon atoms; R5 is a straight or branched chain lower alkyl group having from 1 to 6 carbon atoms; and R6 is O || (-C-O-R7), or (-O-R7), where R7 is a straight or branched chain lower alkyl group having from 1 to 6 carbon atoms.
具有改进残留活性的
除草剂组合物,包括 (a) 式中化合物
其中 R1 选自由 2 至 6 个碳原子的低级烷基、卤代烷基、苄基和取代苄基、苯乙基、
吡啶甲基、3 至 6 个碳原子的环烷基和 3 至 6 个碳原子的卤代烯基组成的组、R2 和 R3 各自独立地选自 C2-C6 烷基、C2-C6 烯基和 C3-C8 环烷基组成的组,条件是 R2 和 R3 能与所连接的氮连接形成 5 至 6 个碳的环结构,以及 (b) 除草有效量的
氯乙酰苯胺,其式为
其中 R4 是具有 1 至 6 个碳原子的直链或支链低级烷基;R5 是具有 1 至 6 个碳原子的直链或支链低级烷基;R6 是 O ||(-C-O-R7) 或 (-O-R7),其中 R7 是具有 1 至 6 个碳原子的直链或支链低级烷基。