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Taro Leaf Blight (Phytophthora colocasiae) is a highly infectious plant disease that is characterized by the formation of large brown lesions on the leaves of infected taro plants. Lesions are the result of oomycetes leaching nutrients out of the leaves via haustoria to create white powdery rings of sporangia. This pathogen grows best in high humidity and high rainfall environments offering the pathogen means of dispersal via rain splash as well as a warm humid environment that favors hyphal growth across the infected plant. The Taro Leaf Blight epidemic of Samoa in 1993 is an example of extreme devastation this plant pathogen can cause if preventative measures are not used to control spread and symptoms.

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  • Phytophthora colocasiae (de)
  • Phytophthora colocasiae (fr)
  • Taro leaf blight (en)
  • 芋頭疫病 (zh)
rdfs:comment
  • Phytophthora colocasiae ist eine Art der Eipilze (Oomycetes) in der Gattung Phytophthora, die eine als Taro-Blattfäule bekannte Pflanzenkrankheit bei Taro auslöst. (de)
  • Taro Leaf Blight (Phytophthora colocasiae) is a highly infectious plant disease that is characterized by the formation of large brown lesions on the leaves of infected taro plants. Lesions are the result of oomycetes leaching nutrients out of the leaves via haustoria to create white powdery rings of sporangia. This pathogen grows best in high humidity and high rainfall environments offering the pathogen means of dispersal via rain splash as well as a warm humid environment that favors hyphal growth across the infected plant. The Taro Leaf Blight epidemic of Samoa in 1993 is an example of extreme devastation this plant pathogen can cause if preventative measures are not used to control spread and symptoms. (en)
  • 芋頭疫病 (Taro Leaf Blight) 是一種具有高度傳染性的植物病害,此病是由卵菌綱的芋疫黴(學名:Phytophthora colocasia)引起,主要感染芋屬植物Colocasia sp.和姑婆芋。此病明顯的特徵是在受感染的芋頭植物的葉子上形成大片的褐色同心輪紋。病變的部位是病原菌為了產生白色的粉狀孢子囊,利用吸器從葉子中浸出營養而導致失去養分而造成 。這種病原體喜歡高濕度、高降雨量的環境,並利用雨水飛濺進行病原菌傳播。芋頭疫病主要感染的部位是葉子,但也可以感染葉柄和球莖。 (zh)
  • Phytophthora colocasiae est une espèce de pseudochampignons oomycètes de la famille des Peronosporaceae. C'est un agent phytopathogène responsable du « mildiou du taro », maladie cryptogamique hautement infectieuse, caractérisée par la formation de grandes lésions brunes sur les feuilles des plants de taro infectés. (fr)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Zoospore_release.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Sporangiospores.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Taro_leaf_blight.jpg
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  • Racib. 1900 (en)
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