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Root rot (Pythium sp.) on Chrysanthemum (Chrysanthemum sp.)


4 Images
5369048
Paul Bachi
University of Kentucky Research and Education Center

Roots turn gray/black and outer root tissue can pull away easily.

5369049
Paul Bachi
University of Kentucky Research and Education Center

Roots turn gray/black and outer root tissue can pull away easily.

5369050
Paul Bachi
University of Kentucky Research and Education Center

sexual reproductive spores ("oospores") seen in roots; look like hollow tires.

5369051
Paul Bachi
University of Kentucky Research and Education Center

A single sexual reproductive spore ("oospore")