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''Tephrosia vogelii'', the fish-poison-bean or Vogel tephrosia (English), tefrósia (Portuguese) or barbasco guineano (Spanish), is a flowering plant species in the genus ''Tephrosia''. It is a herb or small tree that is native to tropical Africa and has also been used in tropical America as well as South and Southeast Asia.〔World Agroforestry Centre. A Tree Species Reference and Selection Guide: Tephrosia Vogelii. Agroforestry Tree Data Base. 2011.〕 It is commonly used to deter pests and diseases, specifically fleas and ticks on animals. It is not suitable for livestock or human consumption because it is not highly nutritious and can be poisonous for fish and some other animals.〔 Since it is a nitrogen-fixing plant, it can be intercropped with other plants and used as a source of green manure.〔 ''Tephrosia vogelii'' is commonly known as the “fish bean”, “fish-poison bean”, or “vogel’s tephrosia”.〔 It is a small tree used by farmers in numerous countries in Africa to get rid of pests on livestock, control pests in cultivated fields as an organic pesticide, improves soil fertility, as a medicine for skin diseases and internal worms, and for storage of crops.〔PACE. ''Tephrosia vogelii''. Pace Project. Action Sheet 53. 2013.〕 The use of “Tephrosia leaf extract as a low cost acaricide is spreading to farmers in central Kenya” and has been very successful in terms of its results. == Description == ''Tephrosia vogelii'' is a soft, woody herb with dense foliage. It stands 0.5–4 m tall, and contains stems and branches with short and long white or rusty brown hairs. Long, narrow leaves branch out from stems, as well as sack like shapes that contain the seeds of the plant for reproduction.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Tephrosia vogelii」の詳細全文を読む スポンサード リンク
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