Siegfried Aktiengesellschaft

Walter E Scharen

Jacques Meyer

Kurt Thiele

Quazi Ahmed

A method of selectively controlling weeds in crop areas, notably vineyards or fruit plantations, by applying a composition that includes different active herbicidal ingredients; the composition comprises a synergistic combination of about 1 part, by weight, of methyl-5-(2,4-dichlorophenoxy)-2-nitrobenzoate as a first active ingredient, and about 1 to 5 parts, by weight, of 3-tert.butyl-5-chloro-6-methyl-uracil as a second active ingredient. The novel composition comprises said synergistic combination and may further contain a mineral oil and adjuvants such as an emulsifier.

Weed control method and composition

Compositions containing Bifenox and Linuron in combination with a mineral oil, such as white oil, show a remarkable synergism of the constituents and are of use as pre-harvest defoliants for crop plants, e.g. for desiccation of potato plants.

Defoliant composition and method

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.

Growing community of inventors

Vordemwald, Switzerland

Walter E Scharen