The Dow Chemical Company

Rhone-poulenc Agrochimie

Jon S Claus

Richard B Rogers

Howard Johnston

Lillian H Troxell

Eric A Egli

The present invention provides a method for controlling perennial johnsongrass, purple nutsedge, yellow nutsedge and quackgrass with an application of alkyl esters, alkoxycarbonylalkyl esters or alkylsulfonamide salts of 5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoic acid.

Control of certain grasses with certain

Novel 2-amino-6-fluoronicotinic acids, amides and esters, herbicidal compositions containing these compounds and methods of using such compounds for the control of wild oats in wheat.

2-Amino-6-fluoronicotinic acids and derivatives thereof and methods of

Novel 2-quinolinyloxyphenoxy and 2-quinolinylthiophenoxy alkanoic acids, amides, salts, and esters thereof, and nitriles derived therefrom and 2-quinolinyloxy- and thio-phenoxy propanols and esters and ethers thereof having the following formula ##STR1## wherein: X and X' are independently F, Cl, Br, I, --CF.sub.3, CH.sub.3 O--, --NO.sub.2, or --N(R').sub.2, with the proviso that both cannot be --CF.sub.3, CH.sub.3 O--, --NO.sub.2, or --NR'.sub.2,

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Hanover, VA, United States of America

Jon S Claus