Rohm and Haas Company

Gerald E Kollman

Roy Y Yih

Wayne O Johnson

Elwood N Irwin

Herbicidal compositions which comprise (A) 2,3,6-trichlorophenylacetic acid (fenac), or a salt, ester, or amide thereof, and (B) a diphenyl ether herbicide, exhibit synergistic activity in the control of weeds, and particularly in the control of nutsedge species.

Synergistic herbicidal compositions

This invention relates to the selective herbicidal activity of fluoroaminopyridazines. In particular, these compounds exhibit preemergence and postemergence herbicidal activity on many of the major weeds including perennial weeds such as nutsedge and quackgrass. These compounds are particularly effective in selectively controlling weeds in agronomic crops.

Growing community of inventors

Chalfont, PA, United States of America

Gerald E Kollman