Plasmopara halstedii
(click on the images to enlarge them)
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| Sunflower severely
affected by downy mildew (P. halstedii) in the field, showing retarded
growth, leaf chlorosis and horizontal head.
F. Viranyi (HU) USDA (US) |
Young sunflower
plants affected by downy mildew (P. halstedii) in the field, with fungal
sporulation on the lower leaf surface. |
Green and chlorotic
mottling along the main veins due to P. halstedii on sunflower.
SRPV, Ile de France (FR) |
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Young
sunflower plants affected by downy mildew (Plasmopara halstedii) in
the field, with fungal sporulation on the lower leaf surface.
F. Viranyi (HU) USDA (US) |
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