Plasmopara halstedii(PLASHA)
Photos
All photos included on this page can only be used for educational purposes.
For publication in journals, books or magazines, permission should be obtained from the original photographers with a copy to EPPO.
Field symptoms on a sunflower plant. Leaf chlorosis, stunting and upturned head
Courtesy: Hedvig Komjati
Leaf chlorosis on sunflower cotyledon leaves
Courtesy: Hedvig Komjati
White downy growth developed on the lower leaf surface
Courtesy: Fera (GB), Crown Copyright
Chlorotic areas on the upper leaf surface
Courtesy: Fera (GB), Crown Copyright
Sporulation on artificially inoculated sunflower cotyledon leaves
Courtesy: Hedvig Komjati
Sporulation at soil level on the stem of a sunflower seedling in a climatic chamber
Courtesy: Aranka Kormany
Sporangiophores with sporangia
Courtesy: Aranka Kormany
Sporangiophores with sporangia
Courtesy: Aranka Kormany
Sporangia and formation of zoospores in a sporangium
Courtesy: Aranka Kormany
Green and chlorotic mottling along the main veins on sunflower
Courtesy: SRPV, Ile de France (FR).
Young sunflower plants affected by downy mildew in the field, with fungal sporulation on the lower leaf surface
Courtesy: F. Viranyi, USDA (US).
Young sunflower plants affected by downy mildew in the field, with fungal sporulation on the lower leaf surface
Courtesy: F. Viranyi, USDA (US).
Sunflower severely affected by downy mildew in the field, showing retarded growth, leaf chlorosis and horizontal head.
Courtesy: F. Viranyi, USDA (US).