An antimicrobial composition which exhibits an excellent antimicrobial activity against various kinds of eumycetes, bacteria, actinomycetes, yeast and algae, is excellent in the quickness and persistency of the effect, and is extremely stable in itself. The antimicrobial composition contains an inorganic metal antimicrobial agent, a thiazole antimicrobial agent, a haloalkylthio antimicrobial agent, an imidazole antimicrobial agent, and a urea antimicrobial agent as the essential components.

A herbicidal composition to selectively control undesirable epiphytic weeds by applying active ingredients in an effective amount of Atrazine, Simazine, Dichlobenil, Atrazine+Dichlobenil, Simazine+Dichlobenil and the surfactant Tween 80.

Novel arylaminocarbonyl compounds, intermediates therefore, and the use of said compounds for the control of weeds are disclosed.

A condensed heterocyclic compound of the general formula: ##STR1## wherein Q is a condensed heterocyclic group having a nitrogen atom in the bridgehead which is unsubstituted or substituted, X is a hydrogen atom or a group attached through C, O, S or N, and Y is an electron attractive group, or its salt which is useful as agricultural chemical.

A method for inhibiting or preventing emergence and growth of algae, comprising use of a germanium compound and a herbicide, and an antialgal composition comprising a germanium compound and a herbicide. The method of the present invention inhibits and prevents emergence and growth of algae, and can be used safely with little influence on aquatic animals. The method is advantageously used for a fish tank in which fish for appreciation is kept, so as to keep good appearance of the tank and to redu...

The invention relates to new substituted pyrazol derivatives of general formula (I) in which: R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 have the meanings given in the description, agents with herbicidal action containing at least one compound of formula (I), and their use as herbicides.

The invention discloses compounds of formula I ##STR1## wherein X is oxygen or sulfur, R is hydrogen, chlorine or fluorine, R.sub.1 is fluorine, chlorine, bromine, cyano or methyl, R.sub.2 is halogen, C.sub.1-6 alkyl, C.sub.1-6 alkoxy, C.sub.1-6 alkylcarbonyloxy, C.sub.3-6 cycloalkoxy, C.sub.3-6 alkynyloxy, C.sub.3-6 alkenyloxy, --COOH, --CO--R.sub.3, --CO--NR.sub.4 R.sub.5, --NR.sub.6 R.sub.7, C.sub.2-6 alkenyl, N-pyrrolyl, 2-oxo-3-tetrahydrofuranyl or is C.sub.1-6 alkyl substituted with haloge...

A composition for being sprayed on the foliage of a plant, which is suspended in water so as to apply to the foliage of the plant by using a paint sprayer or the like, which provides the effects that the photodecomposition of water on the surface of the foliage is advanced, and thereby carbon dioxide assimilation in the plant can be expedited, and an oxygen free radical as produced in a process of a photodecomposition reaction of water can be used for a lipid peroxidation reaction in a plant cel...

This invention provides with novel hydantoin derivatives, processes for preparing them, and herbicides containing said derivatives as active ingredient. The hydantoin derivative of this invention represented by the general formula (1): ##STR1## is produced by reacting an arylisocyanate derivative or an arylisothiocyanate derivative represented by the general formula (2): ##STR2## with a dehydropipecolic acid derivative represented by the general formula (3): ##STR3##

The invention relates to new heterocyclylbenzonitriles of the general formula (I) ##STR1## in which R.sup.1, R.sup.2, R.sup.3 and Het have the meanings given in the description, new processes and new intermediate products for their preparation and their use as herbicides.