A fungicidal composition comprising a mixture of components (A) and (B), wherein components (A) and (B) are as defined in claim 1, and use of the compositions in agriculture or horticulture for controlling or preventing infestation of plants by phytopathogenic microorganisms, preferably fungi.

A fungicidal composition comprising a mixture of components (A) and (B), wherein components (A) and (B) are as defined in claim 1, and use of the compositions in agriculture or horticulture for controlling or preventing infestation of plants by phytopathogenic microorganisms, preferably fungi.

A fungicidal composition containing a fungicidally effective amount of the compound of Formula I, 4-((6-(2-(2,4-difluorophenyl)-1,1-difluoro-2-hydroxy-3-(5-thioxo-4,5-dihydro-1H-1,2,4-triazol-1-yl)propyl)pyridin-3- yl)oxy)benzonitrile for use on fungal diseases of cereals. Additionally, this disclosure concerns a fungicidal composition containing (a) the compound of Formula I, 4-((6-(2-(2,4-difluorophenyl)-1,1-difiuoro-2-hydroxy-3-(5-thioxo-4,5-dihydro-1H-1,2,4-triazol-1-yl)propyl)pyridin-3-yl)oxy)benzonitrile and (b) the compound of Formula II, (S)-1,1-bis(4-fluorophenyl)propan-2-yl (3-acetoxy-4-methoxypicolinoyl)-L-alaninate, for control of fungal diseases of cereals.

A fungicidal composition containing a fungicidally effective amount of the compound of Formula I, 4-((6-(2-(2,4-difluorophenyl)-1,1-difluoro-2-hydroxy-3-(5-thioxo-4,5-dihydro-1H-1,2,4-triazol-1-yl)propyl)pyridin-3- yl)oxy)benzonitrile for use on fungal diseases of cereals. Additionally, this disclosure concerns a fungicidal composition containing (a) the compound of Formula I, 4-((6-(2-(2,4-difluorophenyl)-1,1-difiuoro-2-hydroxy-3-(5-thioxo-4,5-dihydro-1H-1,2,4-triazol-1-yl)propyl)pyridin-3-yl)oxy)benzonitrile and (b) the compound of Formula II, (S)-1,1-bis(4-fluorophenyl)propan-2-yl (3-acetoxy-4-methoxypicolinoyl)-L-alaninate, for control of fungal diseases of cereals.

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.

An alkene-containing amide compound of formula (I) and agriculturally acceptable salts thereof can be used as herbicides.

##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##

Provided herein is a liquid pesticidal composition, comprising: (a) 3 to 10 mass% of a pesticidal active ingredient having a water solubility at 25° C. of 15 mass ppm or less and a melting point of 10° C. or more; (b) 3.6 to 60 mass% of a first solvent that is ε-caprolactone; (c) 19.5 to 85 mass% of a second solvent having a water solubility at 25° C. of 1 mass% or less; and (d) 1 to 30 mass% of a surfactant, wherein a total content of the pesticidal active ingredient, the first solvent, the second solvent, and the surfactant is 60 mass% or more, a content of the first solvent relative to a content of the pesticidal active ingredient is from 1.2 to 15.0 times by mass, and a content of the second solvent relative to the content of the pesticidal active ingredient is from 6.5 to 25.0 times by mass.