An agricultural and horticultural disease controller and a method for controlling the diseases

摘要

An agricultural and horticultural disease controller comprises a 1, 2, 3-thiadiazole deriv. of formula (I) or its salt R1 = H, 1-12C alkyl, 1-12C haloalkyl, 2-12 C alkinyl, 2-12C haloalkenyl, 2-12C alkynyl, 2-12C haloalkynyl, 3-6C cycloalkyl, phenyl (opt. substd. by halo, NO2, Cn, 1-6C alkyl, 1-6C haloalkyl, 1-6C alkoxy, 1-6C haloalkoxy, 1-6C alkylthio, 1-6C haloalkylthio, 2-6C alkenyl and/or 2-6C alkynyl), R2 =e.g XR12, O-N=CR19R20, NR21R22, etc R19, R20 = H, halo, NO2, CN, 1-12C alkyl, 1-12C haloalkyl, 3-6C cycloalkyl, 2-12C alkenyl, 2-12C alkynyl, 1-12C alkoxy-1-12C alkyl, 1-12C alkoxycarbonyl, phenyl (opt. substd. by Q), 5- or 6-membered heterocycle contg. O, S and/or N (opt. substd. by Q), or R19 + R20 = 3-6C cycloalkane or 5- or 6- membered heterocycle contg. O, S and/or N; R21, R22 = H, 1-12C alkyl, 1-12C haloalkyl (opt. substd. by OH or 1-6C alkoxy), 2-12C alkenyl, 2-12C alkynyl, 1-12C alkoxy- 1-6C alkyl, 1-12C alkylthio-1-6C alkyl, cyano-1-12C alkyl (opt. substd. by 1-6C alkoxy, 2-6C alkenyloxy, 2-6C alkynyloxy, 1-6C alkylthio, 1-6C alkoxycarbonyl-1-6C alkoxy, 1-6C alkoxycarbonyl- 1-6C alkylthio, phenoxy, phenylthio, pyrazol-1-yl, carbamoyl (1-6C) alkyl (opt. substd.), hydroxy-1-16C alkyl, di(1-6C) alkoxy-1-6C alkyl, 1-6C alkoxycarbonyl-1-6C alkyl (opt. substd.), phenyl (opt. substd.), phenyl-1-6C alkyl (opt. substd.), naphthyl etc. or R21 + R22 = 4-6C alkylene opt. contg. O or diaminomethylene;.