Nihon Nohyaku Co., Ltd.

Isao Yanai

Kunikazu Hiraga

Tsutomu Mabuchi

Tatsuo Harada

Yuzo Miura

Shoichi Shibayama

Mitsuru Kajioka

Masanobu Ohnishi

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

A diphenyl ether represented by the general formula (I), ##STR1## wherein R is a lower alkyl group having 1 to 4 carbon atoms, a lower alkoxyethyl group, the alkoxy substituent of which having 1 to 4 carbon atoms, or a lower alkoxyethoxyethyl group, the alkoxy substituent of which having 1 to 4 carbon atoms is capable of controlling annual and perennial weeds.

Diphenyl ether and herbicide containing the same

N-(p-trifluoromethoxyphenyl)-3,4,5,6-tetrahydrophthalimide and N-(p-trifluoromethylthiophenyl)-3,4,5,6-tetrahydrophthalimide are capable of controlling annual and perennial weeds with high selectivity.

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Osakasayama, Japan

Isao Yanai