herbicidiskt verksamt medel och preparat samt foerfarande foer selektiv bekaempning av ograes

摘要

Herbicidal compositions for selective weed control comprising 4-(4'-chlorobenzyl)-phenoxy acetic acid or a salt thereof and the novel salts of 4-(4'-chlorobenzyl)-phenoxy acetic acid. A method for selectively controlling weeds by applying to a crop area an effective amount of 4-(4'-chlorobenzyl)-phenoxy acetic acid or a salt of said acid.