Powdery mildew
 A.M. Varela, icipe
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Powdery mildew on cabbage.
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 A.A. Seif, icipe
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Powdery mildew on mango
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 A.M. Varela, icipe
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Powdery mildew on upper surface of an okra leaf
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 A. M. Varela & A. A. Seif, icipe.
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Powdery mildew on okra pods
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 A. A. Seif, icipe
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Powdery mildew on tomato
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 A.M. Varela
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Powdery mildew on peas
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 Courtesy EcoPort (http://www.ecoport.org): Jürgen Kranz
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Powdery mildew on mango
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