Abstract: Described are a stick-shaped soil fumigant preparation and an application method therefor. The fumigant preparation comprises a water-soluble and/or biodegradable film and a soil sterilizer and/or nematocide hermetically packed in the form of a stick with the film. The soil sterilizer and nematocide are each in a liquid form at room temperature.The soil fumigant preparation according to the present invention remains suppressed in toxicity, volatility and irritation before application to the soil, but its active ingredient(s) are promptly released after application. In addition, the present invention makes it possible to provide a fumigant in such a form as permitting a substantial improvement in the efficiency of work by a fumigating worker and also to provide an effective application method therefor, without the need for any machine designed exclusively for fumigation.

Abstract: The substituted thiophene derivative of the invention which is represented by the general formula (1) has a broad disease spectrum for a pathogenic fungus of various crops, exhibits an excellent controlling effect on disease such as gray mold, powdery mildew and rust in particular, and is also effective for a resistant fungus of conventional fungicides which has become a serious problem, and consequently is useful for an agricultural and horticultural fungicide.

Abstract: Application of a rice blast control agent containing an isothiazolecarboxylic acid derivative of the below-described formula, which shows excellent activity against rice blast (Pyricularia oryzae) in rice cultivation, to the water surface of a paddy rice field results in the absorption of the derivative through roots of rice plants, so that the resistance of the rice plants can be enhanced. ##STR1## wherein R.sup.1 and R.sup.2 independently mean a hydrogen or halogen atom or a particular group, and Y stands for an OR.sub.3 group (R.sup.3 being a hydrogen or alkali metal atom or a particular group), an NHR.sup.4 group (R.sup.4 being a hydrogen atom or a particular group), or a morpholino group.

Abstract: Pyrimidinyloxy(thio)quinoline derivatives represented by the formula (I) which exhibit an excellent controlling effect for plant diseases and are also safe for crop plants, preparation processes of the derivatives, and agri-horticultural fungicides comprising the derivatives as an active ingredient, are disclosed. ##STR1## In the formula (I), X is an oxygen atom or sulfur atom, Y is a hydrogen atom or halogen atom, Z is a hydrogen atom or methyl, R.sup.1 and R.sup.2 are methoxy or methyl, and n is an integer of 1 or 2.

Abstract: An amide derivative represented by the following general formula (I) ##STR1## wherein one of X and Y represents a sulfur atom and the other represents a carbon atom, Z represents a nitrile or thioamide group, each of R.sup.1 and R.sup.2 represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, a halomethyl group or a phenyl group, and R.sup.

Abstract: An amide derivative represented by the following general formula (I) ##STR1## wherein one of X and Y represents a sulfur atom and the other represents a carbon atom, Z represents a nitrile or thioamide group, each of R.sup.1 and R.sup.2 represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, a halomethyl group or a phenyl group, and R.sup.

Abstract: Disclosed are dihalogenothiocyanopyrimidine derivatives of the general formula ##STR1## wherein X and Y are halogen atoms, a process for preparing such derivatives, as well as agricultural and horticultural fungicidal compositions containing such a derivative as active ingredient.

Abstract: Novel pyrazole derivatives of the general formula (I) ##STR1## wherein R.sup.1 represents an alkyl, haloalkyl, alkenyl, haloalkenyl or phenyl group, R.sup.2 and R.sup.3 each represent a hydrogen or halogen atom, or an alkyl, haloalkyl, alkoxy, alkoxyalkyl or phenyl group, and R.sup.4 represents an alkyl, alkenyl, haloalkenyl or phenyl group, or a heterocyclic aromatic group which contains at least one of oxygen, nitrogen and sulfur atoms and may be unsubstituted or substituted,which are useful as agricultural and horticultural fungicides. The pyrazole derivatives can be produced by reacting compounds of the general formula (III) ##STR2## wherein R.sup.1, R.sup.2 and R.sup.3 are as defined above, and X represents a halogen atom,with aminoacetonitriles of the general formula (IV) ##STR3## wherein R.sup.4 is as defined above, or salts thereof.

Abstract: Disclosed herein are thiocyanopyrimidine derivatives represented by the following general formula: ##STR1## wherein R means an alkyl group having 1-3 carbon atoms and X denotes a halogen atom, their production process, and agricultural and horticultural fungicides containing same as active ingredients. The compounds of this invention can provide ideal agricultural and horticultural fungicides, since they exhibit outstanding fungicidal activities against plant pathogens led by late blight and downy mildew, their toxicity to animals are low and they are not phytotoxic.The compounds of this invention can be obtained by reacting pyrimidine derivatives represented by the following general formula: ##STR2## with thiocyanates while using an organic acid as a solvent. Good results can be obtained particularly when formic acid is used as a solvent.

Abstract: Disclosed herein are thiocyanopyrimidine derivatives represented by the following general formula: ##STR1## wherein R means an alkyl group having 1-3 carbon atoms and X denotes a halogen atom, their production process, and agricultural and horticultural fungicides containing same as active ingredients. The compounds of this invention can provide ideal agricultural and horticultural fungicides, since they exhibit outstanding fungicidal activities against plant pathogens led by late blight and downy mildew, their toxicity to animals are low and they are not phytotoxic.The compounds of this invention can be obtained by reacting pyrimidine derivatives represented by the following general formula: ##STR2## with thiocyanates while using an organic acid as a solvent. Good results can be obtained particularly when formic acid is used as a solvent.

Abstract: Substituted propargyloxyacetonitrile derivative represented by the general formula (I) ##STR1## wherein R represents a hydrogen atom, a halogen atom, a lower alkyl group, a lower haloalkyl group, a lower alkoxy group, a methylenedioxy group, a nitro group or a cyano group, n represents an integer of 1 to 5 and when n is an integer of 2 or more, R's may be identical or different, R.sup.1 represents a hydrogen atom or a lower alkyl group, and R.sup.2 represents a hydrogen atom, a lower alkyl group, a lower haloalkyl group or a halogen atom, provided that R.sup.1 and R.sup.2 are not simultaneously hydrogen atoms.The compounds have herbicidal and fungicidal activities.

Abstract: Disclosed herein are a novel compound, 5-methylthiopyrimidine derivative, notably that represented by the following general formula: ##STR1## wherein X means an oxygen or sulfur atom and R.sup.2 denotes a methyl, allyl or propargyl group, its preparation process and an agricultural and horticultural fungicide containing same as an active ingredient. The above compound exhibits outstanding control effects against plant diseases, especially, late blight of potatoes and the like and downly mildew. It permits preparation of an ideal agricultural and horticultural fungicide owing to its very low toxicity against mammal and fish and its no phytotoxicity.