Sandoz Gmbh

Chemie Linz Aktiengesellschaft

Engelbert Auer

Dietmar Kores

Rudolf H Worther

Hermann Tramberger

Horst Korntner

Alfred Diskus

Rudolf Schneider

Harald Leitner

Erwin Wittmann

Novel herbicidal N-cyanopyridazinones of the general formula ##STR1## in which the radicals R.sub.1, R.sub.2 and R.sub.3 independently of one another denote hydrogen, halogen, amino, nitro, cyano, alkyl, aryl, aralkyl, alkoxy or aryloxy groups, a process for their preparation, a herbicidal composition comprising them, and a method of controlling weeds.

Herbicidal n-cyanopyridazinones

Herbicidal composition which comprises as active ingredients a phenylpyridazine of the formula ##STR1## in which Hal is chlorine or bromine, R is alkyl with up to 12 C-atoms and X and Y are oxygen or sulfur, whereby one of X and Y always is sulfur and 2-{[4-chloro-6-(ethylamino)-S-triazin-2-yl]amino}-2-methylpropionitrile. This composition is particularly used in combating weeds which are difficult to combat and are found in growing cereal crops.

Herbicidal composition

Growing community of inventors

Leonding, Austria

Engelbert Auer