Nihon Nohyaku Co., Ltd.

Takashi Ohtsuka

Tsutomu Mabuchi

Takeshi Katsuhira

Yuzo Miura

Sumitaka Kose

Masahiro Kanayama

Masanori Tonishi

Herbicidal compositions containing as the active ingredients (one or more compounds selected from among light-induced herbicidal compounds and one or more compounds selected from among organoposphorus herbicidal compounds, characterized by containing ethylenediamine alkoxylates and alcohol alkoxylates as surfactants. These herbicidal compositions have an excellent rapid action and exert a remarkable herbicidal effect in a small dose.

Herbicidal compositions and method of using the same

The present invention provides a pyridine-2,3-dicarboxylic acid diamide derivatives represented by the following formula (I) and herbicides containing them as an active ingredient. ##STR1## �wherein R.sub.1 represents one to three substituents such as H, halogen, cyano, nitro, (halo)alkyl, (halo)alkoxy, (halo)alkylthio, (C.sub.3-6)cycloalkyl, alkenyl, alkynyl, substituted phenyl, substituted phenoxy, etc. and R.sub.1 may represent alkylene or alkenylene together with an adjacent carbon atom; R.sub.2 represents H, halogen, cyano, nitro, (halo)alkyl or (halo)alkoxy; R.sub.3 represents H or alkyl; R.sub.4 and R.sub.5 each represent H, (halo)alkyl, cycloalkyl, substituted cycloalkylalkyl, etc.; and n represents an integer of 0 or 1!. The present compounds exhibit excellent effect for controlling paddy field weeds and the like.

Pryidine-2,3-dicarboxylic acid diamide derivatives and herbicides

Growing community of inventors

Tondabayashi, Japan

Takashi Ohtsuka