Nippon Soda Co., Ltd.

Shozo Yamada

Hisao Ishikawa

Isao Iwataki

Yoshihiko Hirono

Mikio Sawaki

Minoru Kaeriyama

Saburo Kano

Yasushi Yasuda

Osami Nomura

Nobuo Matsui

Hideo Hosaka

Kenichi Kohara

Kuniyasu Maeda

Mitsuo Asada

Akira Nakayama

Susumu Okunuki

A compound having the general formula ##STR1## wherein R.sub.1 is ethyl or allyl; and

5-Phenylcyclohexenone derivatives

Compounds of the general formula ##STR1## wherein X is trifluoromethyl or halogen,

Diphenylamine derivatives

A compound of the formula ##SPC1## Wherein X is hydrogen or halogen:

Herbicidal composition of 3,4-dihydro-2H-pyrane-2,4-diones and methods

Compounds of the formula ##SPC1## Wherein R.sub.1 and R.sub.2 are alkyl having 2 to 6 carbon atoms or phenyl; R.sub.3 is alkyl having 1 to 10 carbon atoms, alkenyl or alkynyl having up to six carbon atoms; R is alkyl of 1 to 20 carbon atoms, phenyl or phenyl substituted with halogen, methyl, methoxy or nitro; and A is carbonyl or sulfonyl, are effective as herbicides, plant growth regulators and fungicides.

.alpha.-Pyrone derivatives

Benzothiazole derivatives of the general formula: ##SPC1## Wherein R is chlorine atom, alkyl having from 1 to 4 carbon atoms or methoxy; are useful as selective herbicide.

Combating weeds in rice with benzothiazole derivatives

A selective herbicidal composition comprising an effective amount of a compound of the formula ##SPC1## Wherein R is selected from the group consisting of isopropyl and tertbutyl.

Growing community of inventors

Hiratsuka, Japan

Shozo Yamada