Powdery mildew (Erysiphe cichoracearum) on Aster novi-belgii leaves
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Powdery mildew (Erysiphe cichoracearum) on Aster novi-belgii leaves
Powdery mildew (Erysiphe cichoracearum) on Aster novi-belgii leaves

Filename: 528631.TIF
Photographer: Nigel Cattlin
Source: Visuals Unlimited, Inc.
Date: 1 Mar 2007
Location:
Credit: Nigel Cattlin/Visuals Unlimited, Inc.
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