Abstract: A plant disease control agent for agricultural or horticultural use and a pest control agent for agricultural or horticultural use, which contain a benzisothiazoline derivative or a salt thereof as an active ingredient and have the following marked effects. They are highly effective in controlling agricultural or horticultural plant diseases and are highly effective in controlling a wide range of pests. They are effective also in controlling pests having resistance. Furthermore, they are excellent in residual activity and rain resistance without causing chemical damage to crops. The benzisothiazoline derivative of the present invention is represented by the following general formula [I]. The symbols in the formula are defined in the Description.

Abstract: The present invention provides a pyrimidinyloxyalkanamide derivative represented by Formula (I): ##STR1## (wherein R.sup.1 represents a hydrogen atom, a C.sub.1 -C.sub.6 alkyl group, a C.sub.3 -C.sub.6 cycloalkyl group, or the like, R.sup.2 represents a C.sub.1 -C.sub.6 alkyl group, a C.sub.1 -C.sub.4 haloalkyl group, or the like, R.sup.3 represents a hydrogen atom, a C.sub.1 -C.sub.6 alkyl group, a halogen atom, or the like, R.sup.4 represents a hydrogen atom, a C.sub.1 -C.sub.6 alkyl group, or the like, Q represents a cyano group, a C.sub.1 -C.sub.6 alkoxycarbonyl group, or the like, and A represents an oxygen atom or a sulfur atom) and a novel agricultural or horticultural fungicide including the same as an active ingredient.The agricultural or horticultural fungicides according to the present invention have excellent controlling effects with regard to rice blast, which are apparently excellent controlling effects as compared with the known compounds.

Abstract: A phenylalkane amide compound having the formula (1): ##STR1## wherein R.sup.1 -R.sup.4, X, n, Y, Z and Q are as defined herein. The compound is useful as an agricultural or horticultural fungicide.