Vegetable Pathology - Long Island Horticultural Research & Extension Center
The black dots in these lesions are pycnidia, which are diagnostic for this disease. Spore tendrils have exuded out of the pycnidia. The spores in these tendrils are dispersed by splashing water.
Meg McGrath talked with Margaret Roach about tomato troubles on Roach's popular A Way to Garden podcast.
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