4-Amino-1,2,4-triazin-5-one compounds and herbicidal composition

4-benzoyl-1-alkyl (alkenyl) - pyrazoles, composition containing

4-carboxy-1-phenyl-5-pyrazolecarboxamides in the production of h

4-cyano(nitro)-5-oxy(thio)-pyrazole derivatives, composition con

4-cyano-4-(fluorophenyl)-3-(substituted phenyl) butyric acids, e

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