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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110<br />
Galls<br />
White to brown-powdery scab. smut<br />
On tips-wart<br />
Roots<br />
Galls<br />
White to dark brown-powdery scab, root-knot nematode<br />
As beads along root-false root-knot nematode<br />
Cysts, white to brown-cyst nematodes<br />
Brown lesions-skin spot<br />
Cortical decay<br />
Dotlike sclerotia-black dot<br />
Large sclerotia--- Rhizoctonia<br />
Cortical injury- lesion nematodes<br />
General rot-Fusarium wilts<br />
Necrosis<br />
Brown to black -pink rot<br />
Dark, covered by gray white mycelium--Rosellinia<br />
Poor development- potassium deficiency, phosphorus deficiency,<br />
nitrogen toxicity<br />
Stunted--magnesium deficiency, boron deficiency, aluminum to:(icity,<br />
cyst nematodes. stubby-root nematode<br />
Proliferation <strong>of</strong> lateral roots--cyst nematodes, root-knot nematode<br />
(Prepared by W. J. Hooker)