| abstract |
Herbicidal compositions comprising, as active ingredient, a substituted tetrazole of the formula:-n wherein R 1 represents an optionally substituted alkyl, cycloalkyl, aryl or heteroaromatic group and R 2 represents an optionally substituted aryl group; the use of such tetrazoles as herbicides, and, as novel compounds those tetrazoles of formula I wherein R 2 is a phenyl group substituted by a nitro, alkyl, haloalkyl or haloalkylsulphonyl group. |