The invention relates to the field of pesticide technology, and in particular a type of carboxylic acid derivative-substituted iminoaryl compound, preparation method, herbicidal composition and use thereof. The compound, as shown in general formula I:

##STR00001## wherein, Q represents

##STR00002##

Y represents halogen, haloalkyl or cyano; Z represents halogen; M represents CH or N; W represents OX.sub.5, SX.sub.5 or N(X.sub.5).sub.2; X represents —CX.sub.1X.sub.2-(alkyl).sub.n-, -alkyl-CX.sub.1X.sub.2-(alkyl).sub.n- or —(CH.sub.2).sub.r—; X.sub.3 and X.sub.4 each independently represent O, S, NH or N-alkyl, etc. The compound has excellent herbicidal activity against gramineous weeds, broadleaf weeds, cyperaceae weeds and so on even at low application rates, and has high selectivity for crops.

The invention relates to the field of pesticide technology, and in particular a type of carboxylic acid derivative-substituted iminoaryl compound, preparation method, herbicidal composition and use thereof. The compound, as shown in general formula I:

##STR00001## wherein, Q represents

##STR00002##

Y represents halogen, haloalkyl or cyano; Z represents halogen; M represents CH or N; W represents OX.sub.5, SX.sub.5 or N(X.sub.5).sub.2; X represents —CX.sub.1X.sub.2-(alkyl).sub.n-, -alkyl-CX.sub.1X.sub.2-(alkyl).sub.n- or —(CH.sub.2).sub.r—; X.sub.3 and X.sub.4 each independently represent O, S, NH or N-alkyl, etc. The compound has excellent herbicidal activity against gramineous weeds, broadleaf weeds, cyperaceae weeds and so on even at low application rates, and has high selectivity for crops.

Described herein is a method of controlling the growth of undesirable vegetation weedy Eleusine indica, the method including treating the locus at which control is desired with a synergistic composition including glufosinate combinations.

Described herein is a method of controlling the growth of undesirable vegetation weedy Eleusine indica, the method including treating the locus at which control is desired with a synergistic composition including glufosinate combinations.

Described herein is a method of controlling the growth of undesirable vegetation weedy Glycine max, the method including treating the locus at which control is desired with a synergistic composition including glufosinate, and at least one herbicide selected from the group consisting of nitrophenyl ether class herbicides; imidazolinone class herbicides; organophosphorous class herbicides; dicarboximide class herbicides; phenoxyacetic class herbicides; pyridine class herbicides; cyclohexene oxime class herbicides; aryloxyphenoxypropionic class herbicides; triazolone class herbicides; and uracil class herbicides.

Described herein is a method of controlling the growth of undesirable vegetation weedy Glycine max, the method including treating the locus at which control is desired with a synergistic composition including glufosinate, and at least one herbicide selected from the group consisting of nitrophenyl ether class herbicides; imidazolinone class herbicides; organophosphorous class herbicides; dicarboximide class herbicides; phenoxyacetic class herbicides; pyridine class herbicides; cyclohexene oxime class herbicides; aryloxyphenoxypropionic class herbicides; triazolone class herbicides; and uracil class herbicides.

Described herein is a method of controlling the growth of undesirable vegetation weedy Spermacoce latifolia, the method including treating the locus at which control is desired with a synergistic composition including glufosinate combinations.

Described herein is a method of controlling the growth of undesirable vegetation weedy Spermacoce latifolia, the method including treating the locus at which control is desired with a synergistic composition including glufosinate combinations.

Described herein is a method of controlling the growth of undesirable vegetation weedy Brachiaria decumbens, the method including treating the locus at which control is desired with a synergistic composition including glufosinate.

Described herein is a method of controlling the growth of undesirable vegetation weedy Brachiaria decumbens, the method including treating the locus at which control is desired with a synergistic composition including glufosinate.