An inhibitor for resisting muskmelon powdery mildew as well as preparation method and application thereof are provided, belonging to the technical field of muskmelon culturing. In order to solve the technical problems that muskmelon powdery mildew has caused serious influence on growth and yield of muskmelon, the disclosure uses an inhibitor containing allantoin for resisting muskmelon powdery mildew to spray leaves of the muskmelon in a seedling stage or a spreading stage of the muskmelon, which effectively increases the resistance of the muskmelon to powdery mildew. The disclosure has great significance for improving the yield and quality of the muskmelon.

The invention relates to substituted di-hydro-hydantoin derivatives of the formula (I) wherein X, A, R.sup.1, R.sup.2 and R.sup.3 are as defined in the specification. Furthermore, the present invention relates to processes and intermediates for making compounds of formula (I), to herbicidal compositions comprising these compounds and to methods of using these compounds to control or inhibit plant growth.

##STR00001##

The invention relates to substituted di-hydro-hydantoin derivatives of the formula (I) wherein X, A, R.sup.1, R.sup.2 and R.sup.3 are as defined in the specification. Furthermore, the present invention relates to processes and intermediates for making compounds of formula (I), to herbicidal compositions comprising these compounds and to methods of using these compounds to control or inhibit plant growth.

##STR00001##

The invention relates to substituted dihydro-hydantoin derivatives of the formula (I) wherein X, A, R.sup.1, R.sup.2, R.sup.3, R.sup.a and R.sup.b are as defined in the specification. Furthermore, the present invention relates to processes and intermediates for making compounds of formula (I), to herbicidal compositions comprising these compounds and to methods of using these compounds to control or inhibit plant growth.

##STR00001##

The invention relates to substituted dihydro-hydantoin derivatives of the formula (I) wherein X, A, R.sup.1, R.sup.2, R.sup.3, R.sup.a and R.sup.b are as defined in the specification. Furthermore, the present invention relates to processes and intermediates for making compounds of formula (I), to herbicidal compositions comprising these compounds and to methods of using these compounds to control or inhibit plant growth.

##STR00001##

A composition is provided comprising as component (A) at least one insecticide; and as component (B) at least one fertilizer. The composition is effective in controlling nematodes and in promoting plant growth. The at least one insecticide is preferably selected from thiodicarb, abamectin, imidacloprid, fipronil and mixtures thereof. The fertilizer component preferably comprises one or more amino acids and one or more micronutrients. A method of controlling nematodes and/or promoting plant growth using a combination of component (A) and component (B) is also provided.

A composition is provided comprising as component (A) at least one insecticide; and as component (B) at least one fertilizer. The composition is effective in controlling nematodes and in promoting plant growth. The at least one insecticide is preferably selected from thiodicarb, abamectin, imidacloprid, fipronil and mixtures thereof. The fertilizer component preferably comprises one or more amino acids and one or more micronutrients. A method of controlling nematodes and/or promoting plant growth using a combination of component (A) and component (B) is also provided.

An in situ generation of a biocide, such as monochlorodimethylhydantoin (“MCDMH”) and/or dichlorodimethylhydantoin (“DCDMH”), suitable as a preservative for paints is provided along with a dried surface coating having a biocidal surface comprising MCDMH and/or DCDMH. Also, the present invention provides for a dried coating have a surface comprising an inert compound, such as dimethylhydantoin (“DMH”), whose biocidal capabilities may be activated by applying a chlorine treatment to the dried surface. Further, this invention provides for liquids that can be used to create the above-described coatings.

An in situ generation of a biocide, such as monochlorodimethylhydantoin (“MCDMH”) and/or dichlorodimethylhydantoin (“DCDMH”), suitable as a preservative for paints is provided along with a dried surface coating having a biocidal surface comprising MCDMH and/or DCDMH. Also, the present invention provides for a dried coating have a surface comprising an inert compound, such as dimethylhydantoin (“DMH”), whose biocidal capabilities may be activated by applying a chlorine treatment to the dried surface. Further, this invention provides for liquids that can be used to create the above-described coatings.

An in situ generation of a biocide, such as monochlorodimethylhydantoin (“MCDMH”) and/or dichlorodimethylhydantoin (“DCDMH”), suitable as a preservative for paints is provided along with a dried surface coating having a biocidal surface comprising MCDMH and/or DCDMH. Also, the present invention provides for a dried coating have a surface comprising an inert compound, such as dimethylhydantoin (“DMH”), whose biocidal capabilities may be activated by applying a chlorine treatment to the dried surface. Further, this invention provides for liquids that can be used to create the above-described coatings.