The present invention comprises a novel combination and composition for controlling weeds in wheat. The combination comprises a post-emergence phenoxy herbicide such as Quizalofop-p-ethyl (QPE). The novel composition further includes a broadleaf herbicide. When applied to wheat comprising QPE tolerance, surprisingly, the novel composition appears to provide synergy that results in increased wheat yield over and above the yield expected from wheat intolerant of QPE, untreated wheat, or wheat treated with either QPE or a broadleaf herbicide. Despite the fact that QPE is typically used to kill members of the grass family, the present invention successfully employs the novel combination to increase wheat yield.

The present invention comprises a novel combination and composition for controlling weeds in wheat. The combination comprises a post-emergence phenoxy herbicide such as Quizalofop-p-ethyl (QPE). The novel composition further includes a broadleaf herbicide. When applied to wheat comprising QPE tolerance, surprisingly, the novel composition appears to provide synergy that results in increased wheat yield over and above the yield expected from wheat intolerant of QPE, untreated wheat, or wheat treated with either QPE or a broadleaf herbicide. Despite the fact that QPE is typically used to kill members of the grass family, the present invention successfully employs the novel combination to increase wheat yield.

A pesticide composition, preparation method and use thereof; the composition having a synergism effect, including effective components A and B, wherein the active component A is thidiazuron, the active component B is polyglutamic acid, and the weight ratio of the component A to the component B is 1:(0.01-200).

A pesticide composition, preparation method and use thereof; the composition having a synergism effect, including effective components A and B, wherein the active component A is thidiazuron, the active component B is polyglutamic acid, and the weight ratio of the component A to the component B is 1:(0.01-200).

A pesticide composition, preparation method and use thereof; the composition having a synergism effect, including effective components A and B, wherein the active component A is thidiazuron, the active component B is polyglutamic acid, and the weight ratio of the component A to the component B is 1:(0.01-200).

The invention belongs to the technical field of agricultural chemicals, and particularly relates to an N-(1,3,4-oxadiazol-2-yl)arylcarboxamide compound or a salt thereof, a preparation method, a herbicidal composition and a use thereof. The compound is as shown in the following Formula I:

##STR00001## wherein X represents O, S, SO, SO.sub.2 or NR.sub.1; Y represents halogen, cyano, cyanoalkyl, carboxyl, nitro, etc.; or —X—Y represents unsubstituted or substituted five- or six-membered heterocyclyl or heteroaryl; Z represents hydrogen, halogen, cyano, OR.sub.4, -alkyl-OR.sub.4, —O-alkyl-N(R.sub.5).sub.2, etc., M represents hydrogen, OR.sub.6, SR.sub.6, COR.sub.6, COOR.sub.6, CON(R.sub.7).sub.2, etc. The compound has advantages of a low dosage for use, excellent herbicidal activity, and higher crop safety, especially good selectivity for key crops such as rice.

The invention belongs to the technical field of agricultural chemicals, and particularly relates to an N-(1,3,4-oxadiazol-2-yl)arylcarboxamide compound or a salt thereof, a preparation method, a herbicidal composition and a use thereof. The compound is as shown in the following Formula I:

##STR00001## wherein X represents O, S, SO, SO.sub.2 or NR.sub.1; Y represents halogen, cyano, cyanoalkyl, carboxyl, nitro, etc.; or —X—Y represents unsubstituted or substituted five- or six-membered heterocyclyl or heteroaryl; Z represents hydrogen, halogen, cyano, OR.sub.4, -alkyl-OR.sub.4, —O-alkyl-N(R.sub.5).sub.2, etc., M represents hydrogen, OR.sub.6, SR.sub.6, COR.sub.6, COOR.sub.6, CON(R.sub.7).sub.2, etc. The compound has advantages of a low dosage for use, excellent herbicidal activity, and higher crop safety, especially good selectivity for key crops such as rice.

This invention relates to a liquid herbicidal composition comprising a non-aqueous solvent system, at least one sulfonylurea herbicide and at least one inorganic salt selected from the metal carbonates and metal phosphates. The invention also relates to the use of an inorganic salt selected from the metal carbonates and metal phosphates to improve chemical stabilisation of a sulfonylurea herbicide in a liquid composition comprising a non-aqueous solvent system.

This invention relates to a liquid herbicidal composition comprising a non-aqueous solvent system, at least one sulfonylurea herbicide and at least one inorganic salt selected from the metal carbonates and metal phosphates. The invention also relates to the use of an inorganic salt selected from the metal carbonates and metal phosphates to improve chemical stabilisation of a sulfonylurea herbicide in a liquid composition comprising a non-aqueous solvent system.

This invention relates to a liquid herbicidal composition comprising a non-aqueous solvent system, at least one sulfonylurea herbicide and at least one inorganic salt selected from the metal carbonates and metal phosphates. The invention also relates to the use of an inorganic salt selected from the metal carbonates and metal phosphates to improve chemical stabilisation of a sulfonylurea herbicide in a liquid composition comprising a non-aqueous solvent system.