A pest control agent according to the present invention contains a compound of formula (I) (in the formula, Ar represents a substituted or unsubstituted C6-10 aryl group, R.sup.1 represents a cyano group or a substituted or unsubstituted thiocarbamoyl group, R.sup.2 represents a hydrogen atom, a halogeno group, a substituted or unsubstituted C1-6 alkyl group, a hydroxyl group, or a substituted or unsubstituted C1-6 alkoxy group, R.sup.3 represents a hydrogen atom, a halogeno group, a substituted or unsubstituted C1-6 alkyl group, or the like, and Q represents a cyclic amino group) or a salt thereof.

##STR00001##

A pest control agent according to the present invention contains a compound of formula (I) (in the formula, Ar represents a substituted or unsubstituted C6-10 aryl group, R.sup.1 represents a cyano group or a substituted or unsubstituted thiocarbamoyl group, R.sup.2 represents a hydrogen atom, a halogeno group, a substituted or unsubstituted C1-6 alkyl group, a hydroxyl group, or a substituted or unsubstituted C1-6 alkoxy group, R.sup.3 represents a hydrogen atom, a halogeno group, a substituted or unsubstituted C1-6 alkyl group, or the like, and Q represents a cyclic amino group) or a salt thereof.

##STR00001##

A method for removing ectoparasites from a fish in water may comprise administering to the fish a neonicotinoid to remove the ectoparasites from the fish and exchanging the water comprising the neonicotinoid and the removed ectoparasites with replacement water, thereby separating the removed ectoparasites and the fish. The method may comprise the further step of preventing release of the removed ectoparasites into the environment, for example by passing sample of the water comprising the removed ectoparasite through a mesh filter. A neonicotinoid may be used in treating an ectoparasite infestation in a fish, and a composition for use in treating an ectoparasite infestation in a fish may comprise one or more ectoparasiticides, wherein one of the one or more ectoparasiticides is the neonicotinoid, is provided. The neonicotinoid may be imidacloprid. In use, the dosage regime may be sublethal and/or lethal.

A method for removing ectoparasites from a fish in water may comprise administering to the fish a neonicotinoid to remove the ectoparasites from the fish and exchanging the water comprising the neonicotinoid and the removed ectoparasites with replacement water, thereby separating the removed ectoparasites and the fish. The method may comprise the further step of preventing release of the removed ectoparasites into the environment, for example by passing sample of the water comprising the removed ectoparasite through a mesh filter. A neonicotinoid may be used in treating an ectoparasite infestation in a fish, and a composition for use in treating an ectoparasite infestation in a fish may comprise one or more ectoparasiticides, wherein one of the one or more ectoparasiticides is the neonicotinoid, is provided. The neonicotinoid may be imidacloprid. In use, the dosage regime may be sublethal and/or lethal.

Methods and compositions for controlling undesired vegetation in animal grazelands.

The present invention relates to novel sulfonamide derivatives, to processes and intermediates for preparing them, to plant growth regulator compositions comprising them and to methods of using them for controlling the growth of plants, improving plant tolerance to abiotic stress (including environmental and chemical stresses), inhibiting seed germination and/or safening a plant against phytotoxic effects of chemicals.

The present invention relates to novel sulfonamide derivatives, to processes and intermediates for preparing them, to plant growth regulator compositions comprising them and to methods of using them for controlling the growth of plants, improving plant tolerance to abiotic stress (including environmental and chemical stresses), inhibiting seed germination and/or safening a plant against phytotoxic effects of chemicals.

A species of Burkholderia sp with no known pathogenicity to vertebrates but with pesticidal activity (e.g., plants, insects, fungi, weeds and nematodes) is provided. Also provided are natural products derived from a culture of said species and methods of controlling pests using said natural products.

A species of Burkholderia sp with no known pathogenicity to vertebrates but with pesticidal activity (e.g., plants, insects, fungi, weeds and nematodes) is provided. Also provided are natural products derived from a culture of said species and methods of controlling pests using said natural products.

The present invention relates to novel mixtures, to processes for preparing these mixtures, to compositions comprising these mixtures, and to the use thereof as biologically active compounds, especially for control of harmful microorganisms or pests in crop protection and in the protection of materials and as plant growth regulators.