Begonia Powdery mildew (16113650652).jpg
[https://www.flickr.com/people/62295966@N07 Scot Nelson] from USA
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Begonia Powdery mildew (16113650652), Powdery mildew, Diseases and disorders of Begonia × semperflorens-cultorum
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Begonia Powdery mildew (16113650652), Flickr description  Pathogen: Oidium begoniae
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ベゴニア ミョウガネソウ、ミョウガネソウ、ベゴニアの病態と病態
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ベゴニア パウダー状 パトゲン:ベゴニア菌
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powdery mildew powdery mildew wax begonia genus begonia begonia