India Toba - India Toba

Japanese: インドトバ - いんどとば
India Toba - India Toba

...It is said to contain less rotenone than Derris tuba, but the yield is large. Other Derris species that contain rotenone include D. ferruginea Benth. (English name: Indian tuba) from eastern India and D. triforiata Lour. (fish wisteria) from Assam to southern China, and are also used. Derris powder began to be used in Japan at the end of the Taisho era, and was one of the important insecticides until chemical insecticides were mass-synthesized, and was widely used as derris powder, emulsion, and soap preparations. ...

*Some of the terminology explanations that mention "Indo Toba" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…ロテノン含有はトバより少ないといわれるが,収量は多い。ほかにデリス属でインド東部産のインドトバD.ferruginea Benth.(英名Indian tuba),アッサムから中国南部に分布するギョトウ(魚藤)D.triforiata Lour.などにもロテノン成分が含有されており,利用される。 デリス粉末は,日本では大正時代末から利用が始まり,化学殺虫剤が大量に合成されるまでは重要な殺虫剤の一つで,デリス粉剤,乳剤,セッケン製剤として広く使用された。…

※「インドトバ」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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