HERBICIDT PRAEPARAT OMFATTENDE SUBSTITUEREDE TETRAZOLER, SUBSTITUEREDE TETRAZOLER TIL ANVENDELSE I HERBICIDE PRAEPARATER, ANALOGIFREMGANGSMAADE TIL FREMSTILLING DERAF OG FREMGANGSMAADE TIL BEKAEMPELSE AF UOENSKET PLANTEVAEKST UNDER ANVENDELSE AF PRAEPARATERNE ELLER DE SUBSTITUEREDE TETRAZOLER

摘要

Herbicidal compositions comprising, as active ingredient, a substituted tetrazole of the formula:- CHEM wherein R1 represents an optionally substituted alkyl, cycloalkyl, aryl or heteroaromatic group and R2 represents an optionally substituted aryl group; the use of such tetrazoles as herbicides, and, as novel compounds those tetrazoles of formula I wherein R2 is a phenyl group substituted by a nitro, alkyl, haloalkyl or haloalkylsulphonyl group.