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Compendium of Potato Diseases - (PDF, 101 mb) - USAID

Compendium of Potato Diseases - (PDF, 101 mb) - USAID

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61. <strong>Potato</strong> virus X. Mosaic mottle <strong>of</strong> this type is<br />

indistinguishable from that <strong>of</strong> other viruses such as PVY,<br />

PVM, PVS, etc. (Courtesy C. Fribourg)<br />

63. <strong>Potato</strong> virus M. Early symptoms.<br />

62. <strong>Potato</strong> virus X. Ring spot symptoms on Havana tobacco.<br />

64. Andean potato mottle virus. Secondary symptoms <strong>of</strong><br />

severe patchy mottle and leaf deformation in the Peruvian<br />

cultivar, Revolucion. (Courtesy C. E. Fribourg)<br />

65. Andean potato latent virus. Symptoms in Peruvian cultivar, 66. Mop-top virus. Secondary leaf<br />

Ml Peru. (Courtesy C. E. Fribourg) symptoms. (Courtesy L. Salazar)<br />

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