Mitsui Toatsu Chemicals, Incorporated

Tomoko Hiruta

Masatoshi Gohbara

Kenichi Yamaguchi

Tatsuo Shinmi

Emi Shinmi

Kazunori Takanaka

Described are Drechslera monoceras var. microsporus strains, that is, new microorganism strains which show herbicidal effects against all varieties of barnyard grass, i.e., Echinochloa spp. as weed even at temperatures as low as 15.degree. C. but does not give any influence to cultivation crops such as rice; weed control compositions against barnyard grass, said compositions each containing one of the microorganism strains as an effective ingredient and having high safety and selectivity; and a barnyard grass control method employing at least one of the microorganism strains. Combined use of at least one of the microorganism strains with a chemical herbicide makes it possible to substantially reduce their dosages compared with those required when they are singly applied.

Variety of Drechslera monoceras effective for control of barnyard grass

Weed control compositions containing Drechslera monoceras and additional

Variety of Drechslera monoceras, weed control compositions containing

Growing community of inventors

Mobara, Japan

Tomoko Hiruta