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

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110 Galls White to brown-powdery scab. smut On tips-wart Roots Galls White to dark brown-powdery scab, root-knot nematode As beads along root-false root-knot nematode Cysts, white to brown-cyst nematodes Brown lesions-skin spot Cortical decay Dotlike sclerotia-black dot Large sclerotia--- Rhizoctonia Cortical injury- lesion nematodes General rot-Fusarium wilts Necrosis Brown to black -pink rot Dark, covered by gray white mycelium--Rosellinia Poor development- potassium deficiency, phosphorus deficiency, nitrogen toxicity Stunted--magnesium deficiency, boron deficiency, aluminum to:(icity, cyst nematodes. stubby-root nematode Proliferation of lateral roots--cyst nematodes, root-knot nematode (Prepared by W. J. Hooker)
Equivalent Names of Potato Diseases (ommon Name Causal Factor Other Names Spanish German French Air pollution nitury Ihotochemical oxidants Sulfur o~xides l)ahos prov:cados por contaminaci'n ahnbienial Oxida ntes fotoqumicos Gases sulfurosos Alfalla mosaic Lucerne mosaic Mosaico de la Kalikokranklhcit %irus Calico alfalfa A M V Tuber necrosis virus A.ndean potato Virus latente de los Andes latent %irus A P1 V Anride n potato Moteado andino mottle virus APMV Arrnillaria dry rot .Armillariamella Aster \ello%%s. stolhur. and allied diseases NIycoplasma lacterial soft rot Erwiniatiarotovora Black dot (olhioiri/n atramenntirittin Purple top wilt Tormato big bud Purple top roll Ilaywire late breaking virus IBlue stein Moron Purple dwarf Yellowv top Blunch top Apical leafroll Punta morada Amarillamiento apical violIcco liallimasch Pourridie-agaric Armillaire Stolhurkrankheit P'alrastolbur Metastolbur Solt rot Pudrici6n blanda Knollennassfliule Nassliule Antracnosis Punteado negro Colletotrichum- SchaIlennekrose Colletot rich um- Welke Pourriture molle bactrienne Dartro~e Anthracnosc Blackheart Cora/6n negro Schwar/herzigkeit Coeur noir Blackleg Pierna negra Schwar/beinigkeit .ambe noire Ilackspot Internal bruising Enivrnatic graying Blue bruise 1I1uespot Brown rot I'teldonwina.% .%olanaceatit (ercospiira leaf blotches ('erco pora spp. Charcoal rot thacrolihminapIahe.woli Blacterial wilt Southern bacterial wilt Mancha negra infecciosa Marchite, bacteriana Pudrici6n pitrda no (irauflckigkeit Schwar/fleckigkeit Blaumerflirbung Schleimkra nkhcit Baktriellc Hraunliule Cercospora leaf spots Manch6n foliar (ielbflcckigkcit Cercospora- Blattlleckenkrankiheit Pudrici6n carbonosa Chemical iniury Iatos por ageltes Choanephora blight ('hoinephora quilaicos Muerte regresiva Coiled sprout Brote doblado Taches cendrcs Tachetures bleues [aches plombes Pourriture brune Taches foliaires Cercosporiose (continwed on next page) 111
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, ,. ,o . ; , . o , . r. , -' .L ,
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Compendium of Potato Diseases W. J.
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In memory ofimy respected colleague
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Acknowledgments Planning Committee
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Introduction 1 Potato Disease 1 The
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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
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more heavily in the vascular region
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the air temperature when tubers are
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iiO A B 'D C Fiq. 14 Second growth:
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identifying tissue bruised by black
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Internal Sprouting multiple sprouts
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conditions permits normal leaf deve
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Epidemiology Oxidant injury is pres
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sevritof stnting, chiorosis. loss o
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Selected Reference brown to bronze
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Part II. Disease in the Presence of
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should be planted on land with at l
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Control I) Use disease-free tubers
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FOI-SO M. D, and I. A. FRIEDMAN. )9
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Fungi Powdery Scab liberating powde
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Histopathology Sort of sporangia de
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any time but generally occurs late
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'40 ff .. . '1 f . ."L', . '1 .,. "
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A \, 2) Powdery mildew is rarely a
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R., Inst.. Kew. Surrey. ngland. 609
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TORRES, H.. E. R. FRENCH, and I.. W
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d AC D A 0 Fig 53 Gray mold. A, Bot
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strands of pigmented hyphae. Sclero
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tuber malformation. Roots are also
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1. Giant-hill plants, taller than n
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13. Bacterial soft rot. Erwinia car
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24. Wart. Synchytrium endobioticum
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34. Pleospora herbarum (Stemphylium
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44. Charcoal rot. Macrophomina phas
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55. Leafroll virus. Current season
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67. Mop-top virus. Primary tuber 68
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77. Aster yellows mycoplasma sympto
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Symptoms Small, localized, light br
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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
Page 123 and 124: l.aboratory, Control. and Quarantin
Page 125 and 126: They attack many major crops in the
Page 127 and 128: infested areas of North America sev
Page 129 and 130: antennal tb l tuberce u antenna eye
Page 131 and 132: carbon tetrachloride, applied at th
Page 133 and 134: Diagnostic Microbial Structures Scl
Page 135: Surface and or interior Shades of g
Page 139 and 140: Common Name Causal Factor Other Nam
Page 141 and 142: Common Name Causal Factor Other Nam
Page 143 and 144: coalesce-union of similar structure
Page 145 and 146: many days following removal of the
Page 147 and 148: Index Abrasions, tuber surfaces. 14
Page 149: Irost tolerance in. 9 aniligena. 68
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Compendium of Potato Diseases - (PDF, 101 mb) - USAID

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