Abstract: A pyridone derivative represented by Formula [1] or an agriculturally acceptable salt thereof: wherein R1 is a C1-6 alkyl group, a C2-6 alkenyl group, a C2-6 alkynyl group, or the like; R2 and R3 are each independently a hydrogen atom, a nitro group, a cyano group, or the like; and A is a group represented by Formula A-1, Formula A-2, Formula A-3, Formula A-4, or Formula A-5: The compounds represented by general formula [1] control various weeds growing in upland fields, orchards, paddy fields, and non-crop lands while showing high safety to useful plants and crops.

Abstract: A 3,4-dihalogenoisothiazole derivative represented by the general formula [I] (wherein R1 is a halogen atom; A is an oxygen atom or a sulfur atom; and R is a C1-C6 alkyl group, a C2-C5 alkenyl group, a C2-C5 alkynyl group, a C3-C6 cycloalkyl group, a phenyl group or a 5- to 10-membered heterocyclic group containing at least one of oxygen atom, sulfur atom and nitrogen atom), or a salt thereof.

Abstract: To provide novel 3-triazolylphenyl sulfide derivatives having excellent soil treatment activity as insecticides, miticides or nematicides for agricultural and horticultural plants. 3-Triazolylphenyl sulfide derivatives represented by the formula [1]: wherein R is a cyclopropylmethyl group or a trifluoroethyl group, B2 is a hydrogen atom, a halogen atom or a methyl group, B4 is a halogen atom, a cyano group, a nitro group or a C1-C6 alkyl group, and each of A1 and A3 is a hydrogen atom, a halogen atom, a C1-C6 alkyl group which may be substituted or an amino group which may be substituted.

Abstract: A pyridone derivative represented by Formula [1] or an agriculturally acceptable salt thereof: wherein R1 is a C1-6 alkyl group, a C2-6 alkenyl group, a C2-6 alkynyl group, or the like; R2 and R3 are each independently a hydrogen atom, a nitro group, a cyano group, or the like; and A is a group represented by Formula A-1, Formula A-2, Formula A-3, Formula A-4, or Formula A-5: The compounds represented by general formula [1] control various weeds growing in upland fields, orchards, paddy fields, and non-crop lands while showing high safety to useful plants and crops.

Abstract: A 1,2-benzoisothiazole derivative or a salt thereof is not harmful to a crop and is remarkably effective against agricultural or horticultural plant diseases such as Pyricularia oryzae, Septoria nodorum, Pseudoperonospora cubensis and Colletotrichum orbiculare, and an agricultural or horticultural plant disease-controlling agent containing the derivative or its salt as an active ingredient. The 1,2-benzoisothiazole derivative is represented by the general formula [I]: (wherein R1 is a hydrogen atom or a halogen atom, and R2 is a methyl group or a halogen atom), or a salt thereof.

Abstract: A 3,4-dihalogenoisothiazole derivative represented by the general formula [I] (wherein R1 is a halogen atom; A is an oxygen atom or a sulfur atom; and R is a C1-C6 alkyl group, a C2-C5 alkenyl group, a C2-C5 alkynyl group, a C3-C6 cycloalkyl group, a phenyl group or a 5- to 10-membered heterocyclic group containing at least one of oxygen atom, sulfur atom and nitrogen atom), or a salt thereof.

Abstract: A 1,2-benzoisothiazole derivative or a salt thereof is not harmful to a crop and is remarkably effective against agricultural or horticultural plant diseases such as Pyricularia oryzae, Septoria nodorum, Pseudoperonospora cubensis and Colletotrichum orbiculare, and an agricultural or horticultural plant disease-controlling agent containing the derivative or its salt as an active ingredient. The 1,2-benzoisothiazole derivative is represented by the general formula [I]: (wherein R1 is a hydrogen atom or a halogen atom, and R2 is a methyl group or a halogen atom), or a salt thereof.

Abstract: To provide novel 3-triazolylphenyl sulfide derivatives having excellent soil treatment activity as insecticides, miticides or nematicides for agricultural and horticultural plants. 3-Triazolylphenyl sulfide derivatives represented by the formula [1]: wherein R is a cyclopropylmethyl group or a trifluoroethyl group, B2 is a hydrogen atom, a halogen atom or a methyl group, B4 is a halogen atom, a cyano group, a nitro group or a C1-C6 alkyl group, and each of A1 and A3 is a hydrogen atom, a halogen atom, a C1-C6 alkyl group which may be substituted or an amino group which may be substituted.

Abstract: A plant disease control agent contains, as an active ingredient, at least one aminopyrimidine derivatives represented by General Formula [I]: wherein R is a C2-10 alkyl group; R1 and R2 are each independently a hydrogen atom or a substituent such as an optionally substituted C1-10 alkyl group; X is hydrogen or a substituent selected from a predefined substituent group; Y is a substituent selected from a predefined substituent group; and m is an integer from 0 to 3, and agriculturally acceptable salts thereof.

Abstract: A pyrimidinylbenzimidazole or triazinylbenzimidazole derivative represented by the general formula (I): wherein A is N or CR3, and R1, R2, R3, X, Y and n are as defined in the disclosure.

Abstract: It is to provide a novel fungicide having high controlling effects on plant diseases particularly on wheat powdery mildew and cucumber gray mold, without ill effects on crops. A carbamate derivative represented by the general formula [I] {wherein X is a halogen atom, a C1-C6 alkyl group or the like, n is 0 or an integer of from 1 to 4, R1 is a C1-C6 alkyl group, R2 is a hydrogen atom, a C1-C6 alkyl group or the like, R3 is a hydrogen atom or a C1-C6 alkyl group, G is an oxygen atom, a sulfur atom or the like, Y is a hydrogen atom, a C1-C10 alkyl group, C2-C10 alkenyl group or the like, and Q is a hydrogen atom, a C1-C6 haloalkyl group, a phenyl group or the like} and an agricultural/horticultural fungicide containing the same as the active ingredient.

Abstract: A pyrimidinylbenzimidazole or triazinylbenzimidazole derivative represented by the general formula (I): 1

Abstract: A pyrimidinylbenzimidazole or triazinylbenzimidazole derivative represented by the general formula (I): wherein A is N or CR3, and R1, R2, R3, X, Y and n are as defined in the disclosure.

Abstract: The present invention provides an amino-acid amide derivative represented by the formula: ##STR1## (wherein R.sup.1 represents a lower alkyl group (optionally having at least one same or different substituent of a halogen atom), R.sup.2 represents an ethyl group, R.sup.3 represents a hydrogen atom, R.sup.4 represents a hydrogen atom, R.sup.5, R.sup.6, and R.sup.7 independently represent a hydrogen atom or a lower alkyl group, R.sup.8 represents a hydrogen atom, Z.sup.1 and Z.sup.2 independently represent an oxygen atom or a sulfur atom, Z.sup.3 represents an oxygen atom or a sulfur atom, Q represents a phenyl group, m represents an integer from 0 to 2, and n represents 0 or 1), and an agricultural or horticultural fungicide including an effective amount of the same. The amino-acid amide derivatives exhibit a superior control of plant diseases, particularly downy mildew and late blight, and are not harmful to plants.

Abstract: The present invention provides an amino-acid amide derivative represented by the formula: ##STR1## (wherein R.sup.1 represents a C1.about.C6 alkyl group, a C3.about.C8 cycloalkyl group, or a phenyl group, R.sup.2 represents a hydrogen atom or a methyl group, X represents a halogen atom, a methyl group, a methoxy group, Y represents a C1.about.C6 alkyl group, A represents an oxygen atom, or a sulfur atom, and n represents 0 or an integer from 1 to 3), an agricultural or horticultural fungicide including an effective amount of the same, and a method for killing agriculturally or horticulturally harmful fungi which comprises a step of using a fungicidally effective amount of the amino-acid amide derivative. The present invention provides the amino-acid amide derivatives, which exhibit superior control of plant diseases such as late blight and downy mildew, and which are not harmful chemicals.

Abstract: The present invention provides an agricultural or horticultural fungicide including an effective amount of an amino-acid derivative represented by the formula: ##STR1## wherein R.sup.1 represents a lower alkyl group (optionally having at least one same or different substituent of a halogen atom, an alkoxy group, and a cyano group), R.sup.2 represents an ethyl group, or an n-propyl group, R.sup.3 represents a hydrogen atom or a lower alkyl group, R.sup.4 represents a hydrogen atom, R.sup.5, R.sup.6, and R.sup.7 independently represent a hydrogen atom or a lower alkyl group, R.sup.8 represents a hydrogen atom, or a lower alkyl group, Z.sup.1 and Z.sup.2 independently represent an oxygen atom or a sulfur atom, Z.sup.3 represents an oxygen atom, or a sulfur atom, Q represents a phenyl group, m represents an integer from 0 to 2, and n represents 0 or 1.

Abstract: The present invention provides an agricultural or horticultural fungicide including an effective amount of an amino-acid derivative represented by the formula: ##STR1## wherein R.sup.1 represents a lower alkyl group (optionally having at least one same or different substituent of a halogen atom, an alkoxy group, and a cyano group), R.sup.2 represents an ethyl group, or an n-propyl group, R.sup.3 represents a hydrogen atom or a lower alkyl group, R.sup.4 represents a hydrogen atom, R.sup.5, R.sup.6, and R.sup.7 independently represent a hydrogen atom or a lower alkyl group, R.sup.8 represents a hydrogen atom, or a lower alkyl group, Z.sup.1 and Z.sup.2 independently represent an oxygen atom or a sulfur atom, Z.sup.3 represents an oxygen atom, or a sulfur atom, Q represents a phenyl group, m represents an integer from 0 to 2, and n represents 0 or 1.

Abstract: The present invention provides an N-sulfonyl carboxylic amide derivative including an N-containing 6-membered aromatic ring represented by formula [I]: ##STR1## wherein R.sup.1 represents an alkyl group, an alkenyl group, or the like, R.sup.2 represents a hydrogen atom, an alkyl group, or the like, R.sup.3 and R.sup.4 represent independently an alkyl group, alkoxy group, or the like, and X and Y represent independently a methyne group or a nitrogen atom; or the salt of the same, a method for producing the same, and a biocide containing the same as an active ingredient. The N-sulfonyl carboxylic amide derivative including an N-containing 6-membered aromatic ring according to the present invention exhibits superior effects against blight caused by plant pathogenic fungi belonging to Oomycetes such as downy mildew, late blight, or the like in a low concentration as well as controls weeds occurring in paddy fields and plowed fields.

Abstract: The present invention provides an N-sulfonyl carboxylic amide derivative including an N-containing 6-membered aromatic ring represented by formula [I]: ##STR1## wherein R.sup.1 represents an alkyl group, an alkenyl group, or the like, R.sup.2 represents a hydrogen atom, an alkyl group, or the like. R.sup.3 and R.sup.4 represent independently an alkyl group or a nitrogen atom; or the salt of the same, a method for producing the same, and a biocide containing the same as an active ingredient. The N-sulfonyl carboxylic amide derivative including an N-containing 6-membered aromatic ring according to the present invention exhibits superior effects against blight caused by plant pathogenic fungi belonging to Oomycetes such as downy mildew, late blight, or the like in a low concentration as well as controls weeds occurring in paddy fields and plowed fields.

Abstract: New substituted derivatives of 1,2,6-triphenyl-4(1H)-pyridone are now provided, which are useful as fungicidal agent having practically valuable and improved fungicidal activities against a variety of phyto-pathogenic microorganisms, especially fungi and which show low toxicity to animals, including humans. These new compounds may be produced by different processes.