Yoshitoshi Okuno
Sumitomo Chemical
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Publication
Featured researches published by Yoshitoshi Okuno.
Natural Products#R##N#Proceedings of the 5th International Congress of Pesticide Chemistry, Kyoto, Japan, 29 August – 4 September 1982 | 1983
Tadahiro Matsunaga; Kiyofumi Yoshida; Goro Shinjo; Shigenori Tsuda; Yoshitoshi Okuno; Hirosuke Yoshioka
Abstract The potencies of two novel pyrethroid stereoisomers, d -prallethrin and d -cyphenothrin, were evaluated for development in indoor applications under several test methods for control of housefly, mosquito and cockroach. d -Prallethrin, a propargyl analog of allethrin, generally showed a twice or more the knockdown and killing activities of d -allethrin against the pest insects, and d -cyphenothrin showed more than twice the killing activity of permethrin against cockroach. Both of them revealed an outstanding flushing-out activity against cockroach. The insecticidal potencies in practical formulations are also described in detail as associated with their physical and chemical properties.
Agricultural and biological chemistry | 1973
Katsuhide Okada; Keimei Fujimoto; Yoshitoshi Okuno; Masanao Matsui
Four optically active trimethylcyclopropanecarboxylic acids were prepared from chrysanthemic acids, and their absolute configurations were determined on the basis of chrysanthemic acids whose configuration were already known. Toxicities of several rethronyl esters towards housflies were compared with those of chrysanthemic acids and the cis-acids were proved to be more effective than the trans-acids.
Pesticide Science | 1976
Nobuo Ohno; Keimei Fujimoto; Yoshitoshi Okuno; Toshio Mizutani; Masachika Hirano; Nobushige Itaya; Toshiko Honda; Hirosuke Yoshioka
Archive | 1973
Keimei Fujimoto; Nobuo Ohno; Yoshitoshi Okuno; Toshio Mizutani; Isao Ohno; Masachika Hirano; Nobushige Itaya; Takashi Matsuo
Archive | 1975
Keimei Fujimoto; Nobuo Ohno; Yoshitoshi Okuno; Toshio Mizutani; Isao Ohno; Masachika Hirano; Nobushige Itaya; Takashi Matsuo
Agricultural and biological chemistry | 1974
Nobuo Ohno; Keimei Fujimoto; Yoshitoshi Okuno; Toshio Mizutani; Masachika Hirano; Nobushige Itaya; Toshiko Honda; Hirosuke Yoshioka
Archive | 1975
Keimei Fujimoto; Nobuo Ohno; Yoshitoshi Okuno; Toshio Mizutani; Isao Ohno; Masachika Hirano; Nobushige Itaya; Takashi Matsuo
Archive | 1974
Masachika Hirano; Isao Ohno; Yoshitoshi Okuno; Osamu Magara; Nobushige Itaya; Toshio Nishioka; Toshio Mizutani; Nobuo Ohno; Takashi Matsuo; Hisami Takeda
Agricultural and biological chemistry | 1973
Keimei Fujimoto; Nobushige Itaya; Yoshitoshi Okuno; Tadaomi Kadota; Takashi Yamaguchi
Archive | 1974
Yoshitoshi Okuno; Masachika Hirano
