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

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29. Late blight. Leaves and slems infected "!lh Phytophthora 30. Late blight. Exterior and interior discoloration of tubers infestans. Note sporulation on leaf surface. (Courtesy R. infected with Phytophthora infestans Zachmann) COLOR PLATES 31. Powdery mildew. Recent infection of young leaves by Erysiphe cichoracearum. (Courtesy R. Zachmann) 32. Powdery mildew. Advanced stages of infection by Erysiphe cichoracearum. (Courtesy R C Rowe) 33. Early blight, Alfernaria soiani infection of leaves. (Courtesy L. J. Turkensteen)
34. Pleospora herbarum (Stemphylium botryosum). Infected 35. Phoma andina. Infected leaves. (Courtesy L. J. leaves. (Courtesy L. J. Turkensteen) Turkensteen) 36. White mold. Sclerotinia sclerotiorum infection of stem. (Courtesy R. Zachmann) 38. Stem rot. Sclerotium rolfsii stem infection at the soil line. (Courtesy L. J. Turkensteen) 37. White mold. Sclerotinia sclerotiorum infection of tuber. (Courtesy T. de lcochea) 39. Rosellinia black rot. Infection of tubers, with white mycelium on the tuber surface and soil. (Courtesy J. Bryan) COLOR PLATES (!
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, ,. ,o . ; , . o , . r. , -' .L ,
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Compendium of Potato Diseases W. J.
Page 5 and 6:
In memory ofimy respected colleague
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Acknowledgments Planning Committee
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Introduction 1 Potato Disease 1 The
Page 11 and 12:
A potato disease is an interaction
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Fig. 1.A, Lower portion of young po
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+q I B Fig 4. Natural openings in a
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Part I. Disease in the Absence of I
Page 19 and 20: more heavily in the vascular region
Page 21 and 22: the air temperature when tubers are
Page 23 and 24: iiO A B 'D C Fiq. 14 Second growth:
Page 25 and 26: identifying tissue bruised by black
Page 27 and 28: Internal Sprouting multiple sprouts
Page 29 and 30: conditions permits normal leaf deve
Page 31 and 32: Epidemiology Oxidant injury is pres
Page 33 and 34: sevritof stnting, chiorosis. loss o
Page 35 and 36: Selected Reference brown to bronze
Page 37 and 38: Part II. Disease in the Presence of
Page 39 and 40: should be planted on land with at l
Page 41 and 42: Control I) Use disease-free tubers
Page 43 and 44: FOI-SO M. D, and I. A. FRIEDMAN. )9
Page 45 and 46: Fungi Powdery Scab liberating powde
Page 47 and 48: Histopathology Sort of sporangia de
Page 49 and 50: any time but generally occurs late
Page 51 and 52: '40 ff .. . '1 f . ."L', . '1 .,. "
Page 53 and 54: A \, 2) Powdery mildew is rarely a
Page 55 and 56: R., Inst.. Kew. Surrey. ngland. 609
Page 57 and 58: TORRES, H.. E. R. FRENCH, and I.. W
Page 59 and 60: d AC D A 0 Fig 53 Gray mold. A, Bot
Page 61 and 62: strands of pigmented hyphae. Sclero
Page 63 and 64: tuber malformation. Roots are also
Page 65 and 66: 1. Giant-hill plants, taller than n
Page 67 and 68: 13. Bacterial soft rot. Erwinia car
Page 69: 24. Wart. Synchytrium endobioticum
Page 73 and 74: 44. Charcoal rot. Macrophomina phas
Page 75 and 76: 55. Leafroll virus. Current season
Page 77 and 78: 67. Mop-top virus. Primary tuber 68
Page 79 and 80: 77. Aster yellows mycoplasma sympto
Page 81 and 82: Symptoms Small, localized, light br
Page 83 and 84: obovoid, and 14-30 X 5-10 pm. Pycni
Page 85 and 86: invaders through the IFusarium lesi
Page 87 and 88: necrosis extending into the tuber t
Page 89 and 90: do not survive drying. Both species
Page 91 and 92: cauisal. Tesis Magister Scientiae e
Page 93 and 94: penetration, and subsequent disease
Page 95 and 96: have been demonstrated, including t
Page 97 and 98: In P..floridana,strains of PVY" and
Page 99 and 100: infects certain comnie,-cial stocks
Page 101 and 102: cytoplasm of infected potato cells
Page 103 and 104: WETTER, C. 1971. Potato virus S. No
Page 105 and 106: 3) Resistance has not been identifi
Page 107 and 108: nm), which do code for coat protein
Page 109 and 110: Symptoms AMV may induce Other predo
Page 111 and 112: Disease Cycle I)escriptions of Plan
Page 113 and 114: Selected References KASSANIS, B. 19
Page 115 and 116: Control 1)Avoid locations in wkhich
Page 117 and 118: The "yellows" types of disease, cha
Page 119 and 120: modifying cultural practices and by
Page 121 and 122:
immature females in the white or ye
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l.aboratory, Control. and Quarantin
Page 125 and 126:
They attack many major crops in the
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infested areas of North America sev
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antennal tb l tuberce u antenna eye
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carbon tetrachloride, applied at th
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Diagnostic Microbial Structures Scl
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Surface and or interior Shades of g
Page 137 and 138:
Equivalent Names of Potato Diseases
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Common Name Causal Factor Other Nam
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Common Name Causal Factor Other Nam
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coalesce-union of similar structure
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many days following removal of the
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Index Abrasions, tuber surfaces. 14
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Irost tolerance in. 9 aniligena. 68
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Compendium of Potato Diseases - (PDF, 101 mb) - USAID

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