Downy mildew
 A.M. Varela, icipe
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Downy mildew on cabbage
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 Clemson University - USDA Cooperative Extension Slide Series (www.insectimages.org)
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Downy mildew (Peronospora parasitica) on Brassica oleracea
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 Courtesy EcoPort (http://www.ecoport.org): Denis Persley and Tony Cooke, Department of Primary Industries and Fisheries, Queensland, Australia
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Downy mildew (Pseudoperonospora cubensis) on cucumber.
Severe defoliation of cucumber caused by infection from downy mildew. Fruits are not infected, but those that form are small and do not ripen properly.
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