Compendium of Potato Diseases - (PDF, 101 mb) - USAID
Compendium of Potato Diseases - (PDF, 101 mb) - USAID
Compendium of Potato Diseases - (PDF, 101 mb) - USAID
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19 Pink eye. Tuber rot from severe pink eye infection. 20. Common scab. Streptomyces scabies infection <strong>of</strong> tubers<br />
ranging from surface russeting to deep lesions.<br />
21. Deep common scab. Streptomyces scabies infection with<br />
sparse gray sporulation on the lesion surface. (Courtesy J. E.<br />
Huguelet)<br />
COLOR PLATES<br />
23. Powdery scab. Spongospora<br />
subtorranea infection <strong>of</strong> potato roots.<br />
(Courtesy E. R. French)<br />
IN<br />
/ 22. Powdery scab. Early and late infection <strong>of</strong> tuber. (Courtesy C.<br />
9H. Lawrence and A. R. McKenzie)