The Scale-insects of the Tea Plant
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概要
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In the present paper, scale insects inflicting injury on the. tea plant at home and abroad were listed.<BR>Of the recorded species, 18 were found from Japan, 25 from Formosa, 23 from India, 22 from Ceylon, and 8 from USSR, and the former two were observed by the author.<BR>Certain species were serious pests to the tea plant in Japan, but in other countries they were not so serious. In Japan, Pseud-aulacaspis pentagons, Ceroplastes rubens, C. pseudoceriferus, Lopholeueaspis japonica and Pseudoaunidia paeoniae outbroke in a large area and gave serious damage to the tea plant and Pulvinaria okitsuensis and Lecanium persieae occasionally occurred in a smaller area.
- 日本茶業技術協会の論文
日本茶業技術協会 | 論文
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