4-DL-Alkylester-.alpha.-alaninyl-6-chloro-S-triazines and the us

4-ethyl-3-(substituted phenyl)-1-(3-trifluoromethylphenyl)-2-pyr

4-halopyridine-3-carboxamide compounds and herbicidal compositio

4-Hydroxy-5-isopropyl-2-methylphenyl trimethylammonium, 1-piperi

4-methyltetrahydrophthalimide herbicides

4-Methylthio-2-trifluoromethylmethane-sulfonanilide and derivati

4-nitro-1-phenylpyrazoles, composition containing them, and meth

4-oxo pyridinecarboxamide derivatives as plant growth regulators

4-Phenoxy-2-butene derivatives as plant growth regulators

4-phenoxy-pyridines having herbicidal activity

4-Phenyl-1,2,3-thiadiazoles as herbicide extenders

4-Pyridinium quinazoline derivatives

4-quinoxalinyloxyphenoxyalkylinitrile herbicides

4-substituted-2,6-diphenylpyridine compounds and herbicide conta

4-substituted-2-oxabicyclo[2.2.1]heptane ether herbicides

4-[4-(5-Trifluoromethyl-2-pyridyloxy)phenoxy]-2-pentenoic acid e

4H-3,1-Benzoxazine derivatives

4H-3,1-Benzoxazine derivatives

4H-3,1-Benzoxazine derivatives and their use for controlling und

4H-3,1-Benzoxazine derivatives, compositions and herbicidal use