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.

Disclosed are compositions and methods of pest control. The composition contains one or more active agents such as a polyalcohol, carbohydrate, nucleobase or nucleotide compound or derivative and one or more inactive ingredients which function as attractants or nutrients. The combination of the active agent(s) and the inactive ingredients achieves synergistic effect in pest control.

Disclosed are compositions and methods of pest control. The composition contains one or more active agents such as a polyalcohol, carbohydrate, nucleobase or nucleotide compound or derivative and one or more inactive ingredients which function as attractants or nutrients. The combination of the active agent(s) and the inactive ingredients achieves synergistic effect in pest control.

An antimicrobial composition comprising at least two quaternary ammonium compounds selected from: (i) a quaternary ammonium compound having the formula: A.sub.4-nSi(R—NH.sub.aR.sup.1.sub.bZ)n and (ii) a quaternary ammonium compound having the formula: NHcR.sup.1dZ wherein in each of the at least two quaternary ammonium compounds A, R, R.sup.1, a, Z and n are independently selected, and: A is a member selected from the group consisting of alkoxy radicals, alkylether alkoxy radicals, and alkyl radicals; R is a divalent hydrocarbon radical; each R.sup.1 is independently a member selected from the group consisting of benzyl, alkyl radicals, alkyl ether hydrocarbon radicals, hydroxyl-containing alkyl radicals, and nitrogen-containing hydrocarbon radicals; Z is a member selected from the group consisting of chloride, bromide, iodide, tosylate, hydroxide, sulfate and phosphate; a is 0, 1 or 2, b is 1, 2 or 3, and the sum of a and b is 3; c is 0, 1, 2 or 3, d is 1, 2, 3 or 4, and the sum of c and d is 4; and n is 1, 2 or 3; and wherein the composition comprises at least two quaternary ammonium compounds of formula (i). A method of making an anti-microbial composition, and a method of reducing the number of micro-organisms on a surface, are disclosed.

An antimicrobial composition comprising at least two quaternary ammonium compounds selected from: (i) a quaternary ammonium compound having the formula: A.sub.4-nSi(R—NH.sub.aR.sup.1.sub.bZ)n and (ii) a quaternary ammonium compound having the formula: NHcR.sup.1dZ wherein in each of the at least two quaternary ammonium compounds A, R, R.sup.1, a, Z and n are independently selected, and: A is a member selected from the group consisting of alkoxy radicals, alkylether alkoxy radicals, and alkyl radicals; R is a divalent hydrocarbon radical; each R.sup.1 is independently a member selected from the group consisting of benzyl, alkyl radicals, alkyl ether hydrocarbon radicals, hydroxyl-containing alkyl radicals, and nitrogen-containing hydrocarbon radicals; Z is a member selected from the group consisting of chloride, bromide, iodide, tosylate, hydroxide, sulfate and phosphate; a is 0, 1 or 2, b is 1, 2 or 3, and the sum of a and b is 3; c is 0, 1, 2 or 3, d is 1, 2, 3 or 4, and the sum of c and d is 4; and n is 1, 2 or 3; and wherein the composition comprises at least two quaternary ammonium compounds of formula (i). A method of making an anti-microbial composition, and a method of reducing the number of micro-organisms on a surface, are disclosed.

An antimicrobial composition comprising at least two quaternary ammonium compounds selected from: (i) a quaternary ammonium compound having the formula: A.sub.4-nSi(R—NH.sub.aR.sup.1.sub.bZ)n and (ii) a quaternary ammonium compound having the formula: NHcR.sup.1dZ wherein in each of the at least two quaternary ammonium compounds A, R, R.sup.1, a, Z and n are independently selected, and: A is a member selected from the group consisting of alkoxy radicals, alkylether alkoxy radicals, and alkyl radicals; R is a divalent hydrocarbon radical; each R.sup.1 is independently a member selected from the group consisting of benzyl, alkyl radicals, alkyl ether hydrocarbon radicals, hydroxyl-containing alkyl radicals, and nitrogen-containing hydrocarbon radicals; Z is a member selected from the group consisting of chloride, bromide, iodide, tosylate, hydroxide, sulfate and phosphate; a is 0, 1 or 2, b is 1, 2 or 3, and the sum of a and b is 3; c is 0, 1, 2 or 3, d is 1, 2, 3 or 4, and the sum of c and d is 4; and n is 1, 2 or 3; and wherein the composition comprises at least two quaternary ammonium compounds of formula (i). A method of making an anti-microbial composition, and a method of reducing the number of micro-organisms on a surface, are disclosed.

It is an object of the present invention to provide an agricultural and horticultural fungicide composition that exhibits an excellent control effect on plant diseases even in a small dose and causes no fear of phytotoxicity to useful plants. The agricultural and horticultural fungicide composition of the present invention comprises at least one compound A selected from the group consisting of a compound of formula (1) {wherein each X independently is a halogeno group or a C1-6 alkyl group; n is the number of X and is any integer of 0 to 5; X′ is a halogeno group; R.sup.1, R.sup.2 and R.sup.3 each independently are a C1-6 alkyl group, a C1-6 alkoxy group or a hydroxyl group; and A.sup.1 and A.sup.2 each independently are a nitrogen atom or a carbon atom}, and the like, and at least one compound B selected from the group consisting of silthiofam, an antibiotic, propineb and chinomethionat. ##STR00001##

It is an object of the present invention to provide an agricultural and horticultural fungicide composition that exhibits an excellent control effect on plant diseases even in a small dose and causes no fear of phytotoxicity to useful plants. The agricultural and horticultural fungicide composition of the present invention comprises at least one compound A selected from the group consisting of a compound of formula (1) {wherein each X independently is a halogeno group or a C1-6 alkyl group; n is the number of X and is any integer of 0 to 5; X′ is a halogeno group; R.sup.1, R.sup.2 and R.sup.3 each independently are a C1-6 alkyl group, a C1-6 alkoxy group or a hydroxyl group; and A.sup.1 and A.sup.2 each independently are a nitrogen atom or a carbon atom}, and the like, and at least one compound B selected from the group consisting of silthiofam, an antibiotic, propineb and chinomethionat. ##STR00001##

It is an object of the present invention to provide an agricultural and horticultural fungicide composition that exhibits an excellent control effect on plant diseases even in a small dose and causes no fear of phytotoxicity to useful plants. The agricultural and horticultural fungicide composition of the present invention comprises at least one compound A selected from the group consisting of a compound of formula (1) {wherein each X independently is a halogeno group or a C1-6 alkyl group; n is the number of X and is any integer of 0 to 5; X′ is a halogeno group; R.sup.1, R.sup.2 and R.sup.3 each independently are a C1-6 alkyl group, a C1-6 alkoxy group or a hydroxyl group; and A.sup.1 and A.sup.2 each independently are a nitrogen atom or a carbon atom}, and the like, and at least one compound B selected from the group consisting of silthiofam, an antibiotic, propineb and chinomethionat. ##STR00001##