Use of 1,2,3-thiadiazolecarboxylic acid (thio) ester for controlling pests and novel 1,2,3-thiadiazolecarboxylic acid (thio) ester

摘要

The invention relates to the use of partially known 1,2,3-thiadiazole carboxylic acid (thio)esters of formula (I), in which R1 is hydrogen, optionally substituted alkyl or optionally substituted aryl; R2 is optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted cycloalkenyl or optionally substituted aryl; and Q is oxygen or sulphur, and the use of acid addition salts and metal salt complexes of said esters to protect plants well from attack by undesirable micro-organisms and to control animal pests. Particular 1,2,3-thiadiazole carboxylic acid (thio)esters of formula (I) are novel.