Guanidine derivatives and fungicides for agriculture and horticulture containing the same.

摘要

The guanidines of formula (I) <CHEM> wherein R is hydrogen, (C1-C10)alkyl, (C2-C6)alkenyl, (C2-C4)-alkynyl, (C5-C6)cycloalkyl(C1-C6)alkyl or (C5-C7)cycloalkyl optionally substituted with (C1-C6)alkyl, X is hydrogen, halogen, (C1-C6)alkyl, (C1-C6)alkoxy, halo(C1-C6)alkyl or halo(C1-C6)alkoxy, Y is hydrogen, halogen, (C1-C6)alkyl or (C1-C6) alkoxy, R<1> and R<2> are the same or different and each is hydrogen or methyl, and l, m and n are the same or different and each is an integer of 1 or 2 provided that when R, X, Y, R<1> and R2 are all hydrogen, l is 2, and acid addition salts thereof possess high control effects on mildew, blight, powdery mildew and rust which are serious deseases of fruit trees, vegetables or cereals, and are useful as agricultural and horticultural fungicides.