Nihon Nohyaku Co., Ltd.

Yuzo Miura

Tsutomu Mabuchi

Mitsuru Kajioka

Isao Yanai

Takeshi Katsuhira

Atsushi Tsushima

Takashi Ohtsuka

Masanori Tonishi

Naoya Yamamoto

Masanobu Ohnishi

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

A 3-(substituted phenyl)pyrazole derivative or a salt thereof, the derivative being represented by the general formula ##STR1## wherein, X denotes halogen, R.sup.1 denotes lower alkyl, R.sup.2 denotes halogen and R.sup.3 denotes lower alkyl, lower alkenyl or benzyl group, a process for producing said pyrazole derivative, a herbicidal composition containing said pyrazole derivative as an active ingredient, and a method of controlling weeds by applying said composition.

3-(substituted phenyl) pyrazole derivatives herbicidal composition

There are disclosed a (3-substituted phenyl)pyrazole derivative represented by the general formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and X are various substituents and a salt thereof, and its production process. Said pyrazole derivative or its salt is useful as a herbicide for controlling various injurious weeds.

3-(substituted phenyl)pyrazole derivatives, salts thereof, and

R-Enantiomer of a .DELTA..sup.2 -1,2,4-triazolin-5-one derivatives represented by general formula (I): ##STR1## wherein R.sup.1 represents a fluoroalkyl group having 1 to 2 carbon atoms and R.sup.2 represents a hydrogen atom, a chloroalkyl group having 1 to 4 carbon atoms or an alkoxyalkoxyalkyl group having the total carbon atom numbers of 3 to 6, and a herbicidal composition containing the same.

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Nishinomiya, Japan

Yuzo Miura