Powdery scab
Page last edited 5,227 days ago
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Powdery scab | |
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Chocolate spot on broad bean leaves | |
Scientific Classification | |
Domain: | Eukaryota |
Kingdom: | Rhizaria |
Phylum: | Cercozoa |
Subphylum: | Endomyxa |
Class: | Phytomyxea |
Genus: | Spongospora |
Species: | Spongospora subterranea |
Powdery scab, is a disease that occurs in potato tubers, caused by the protozoa Spongospora subterranea.
Symptoms[edit | edit source]
Symptoms include small lesions in the early stages of the disease, progressing to raised pustules containing a powdery mass. Powdery scab has a cosmetic effect on tubers, which can result in rejection of potatoes. The powdery pustules contain resting spores, which release anisokont zoospores which can infect the root hairs of potatoes or tomatoes.
References[edit | edit source]
- University of Maine. Powdery Scab of Potatoes.
- The Royal Horticultural Society. Powdery scab of potatoes (Spongospora subterranea f. sp. subterranea). Retrieved 2007-05-06.
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