Patent ID: 8551918

Claim:
A method of controlling weeds comprising: applying to soil, prior to development of foliage of target weeds, a herbicidal composition comprising (a) at least one soil-applied herbicide selected from naproanilide, acetochlor, alachlor, butachlor, dimethachlor, metazachlor, metolachlor, pretilachlor, propachlor, proisochlor, S-metolachlor, thenylchlor, flufenacet and mefenacet, and (b) a synergistically effective amount of a lipophilic additive comprising at least one hydrocarbon fluid consisting of a paraffin oil derived from a refined fraction of petroleum oil with a distillation range at 10 mm Hg of about 190° C. to 280° C. and with a carbon number distribution from about C13 to about C55.