Abstract: A compound represented by a formula (I) or a salt thereof; and a herbicide containing at least one selected from them as an active ingredient: wherein R1 represents a substituted or unsubstituted C1-6 alkyl group or the like, R2 represents a substituted or unsubstituted C1-6 alkyl group or the like, R3 represents a hydrogen atom, a substituted or unsubstituted C1-6 alkyl group or the like, and Q represents a substituted or unsubstituted 5- to 10-membered heterocyclyl group.

Abstract: The present invention provides a herbicidal composition containing: at least one compound (I) selected from a compound represented by a formula (I) (wherein R1 represents a substituted or unsubstituted C1-6 alkyl group or the like, R2 represents a substituted or unsubstituted C1-6 alkyl group or the like, R3 represents a hydrogen atom, a substituted or unsubstituted C1-6 alkyl group or the like, and Q represents a substituted or unsubstituted phenyl group or the like) or a salt thereof; and a compound (II) having herbicidal activity such as haloxyfop-methyl, clethodim, S-metolachlor, epyrifenacil, isoxaflutole, sethoxydim and tepraloxydim.

Abstract: An object of the present invention is to provide an agricultural and horticultural composition excellent in the effect of controlling plant disease or accelerating plant growth and a method for controlling plant disease or accelerating plant growth. The agricultural and horticultural composition of the present invention contains t-butyl (6-{[(Z)-(1-methyl-1H-5-tetrazolyl)(phenyl)methylene]aminooxymethyl}-2-pyridyl)carbamate and a phosphite salt. A method for controlling plant disease or accelerating plant growth of the present invention comprises simultaneously or successively applying t-butyl (6-{[(Z)-(1-methyl-1H-5-tetrazolyl)(phenyl)methylene]aminooxymethyl}-2-pyridyl)carbamate and a phosphite salt such as potassium phosphite, ammonium phosphite, calcium phosphite, aluminum phosphite, or sodium phosphite to a plant, soil, or hydroponic plowland.