POTATO DISEASES

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POTATO DISEASES
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INJURIES AND DISORDERS

• BLACKHEART

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INJURIES AND DISORDERS

• FROST

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INJURIES AND DISORDERS

• FROST

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INJURIES AND DISORDERS

• FROST

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INJURIES AND DISORDERS

• FROST

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INJURIES AND DISORDERS

• INTERNAL RUSTY SPOTS

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INJURIES AND DISORDERS

• INTERNAL RUSTY SPOTS

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INJURIES AND DISORDERS

• SECOND GROWTH AND JELLY-END ROT

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INJURIES AND DISORDERS

• JELLY-END ROT

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INJURIES AND DISORDERS

• TUBERS DAMAGED BY MANIPULATION (THUMBNAIL CRACKS)

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VIRUS DISEASES
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VIRUS DISEASES - SYMPTOMS

• COMMON MOSAIC

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VIRUS DISEASES - SYMPTOMS

• AUCUBA MOSAIC

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VIRUS DISEASES - SYMPTOMS

• VEIN NECROSIS

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VIRUS DISEASES - SYMPTOMS

• VEIN NECROSIS

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VIRUS DISEASES - SYMPTOMS

• VEIN NECROSIS

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VIRUS DISEASES - SYMPTOMS

• NECROSIS OF TUBERS

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VIRUS DISEASES - SYMPTOMS

• NECROSIS OF TUBERS

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VIRUS DISEASES - SYMPTOMS

• NECROSIS OF TUBERS

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VIRUS DISEASES - SYMPTOMS

• LEAF CURL

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VIRUS DISEASES - SYMPTOMS

• LEAF CURL

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VIRUS DISEASES - SYMPTOMS

• LEAF ROLL

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VIRUS DISEASES - SYMPTOMS

• STUNTING
• CHLOROSIS
• ATROPHY

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VIRUS DISEASES SYMPTOMS

• LATENT INFECTION S VIRUS

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VIRUS DISEASES SYMPTOMS

• YIELD

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VIRUS DISEASES SYMPTOMS

• TOTALLY INFECTED STAND

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CLASSIFICATION OF POTATO VIRUS DISEASES

• LIGHT INFECTIONS (LOSSES 0 20 ) CAUSED BY
• VIRUSES X, M, S
• HEAVY INFECTIONS (LOSSES UP TO 60 AND MORE )
  CAUSED BY
• VIRUSES A ,Y, LEAF ROLL, MIXED INFECTIONS

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IMPORTANCE OF VIRUS DISEASES (CZECH REPUBLIC)

• TOTAL LOSSES -
• S VIRUS
• ACUTE LOSSES Y VIRUS

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VIRUS TRANSMISSION

• SEEDS
• ALL VIRUSES (THE MOST IMPORTANT MODE)

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VIRUS TRANSMISSION

• APHIDS (MYZUS PERSICAE)
• S, M, A, Y NONPERSISTENT
• LEAF ROLL VIRUS PERSISTENT

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VIRUS TRANSMISSION

• MECHANICAL
• ALL VIRUSES WITH THE EXCEPTION OF LEAF ROLL VIRUS

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VIRUS CONTROL

• CULTURAL PRACTICES (ALL TO BE DONE BY SEED POTATO
  GROWER!)
• LOCALITY (HIGHER ELEVATIONS, VICINITY OF SEA
  (APHIDS DONT LIKE WIND))
• ISOLATION FROM OTHER POTATO FIELDS (CCA 500 M
  NONPERS., 1KM PERS.)
• SEED TUBERS QUALITY, SPROUTING
• PREPARATION OF THE FIELD
• PLANTING IN TIME AS SOON AS POSSIBLE
• NEGATIVE CHOICE (PLANTS WITH SYMPTOMS)
• PRECOTIAL HAULM DESTROYING

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VIRUS CONTROL

• FIGHT AGAINST VECTORS
• GRANULATED INSECTICIDES
• SEED TREATMENT
• SPRAYING

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BACTERIAL DISEASES
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BACTERIAL DISEASES

• SCAB
• (STREPTOMYCES SCABIES)
• SYMPTOMS

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BACTERIAL DISEASES

• SCAB
• (STREPTOMYCES SCABIES)
• SYMPTOMS
• (RAISED, FLAT, PITTED)

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BACTERIAL DISEASES

• SCAB
• SOURCE OF INFECTION SOIL

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BACTERIAL DISEASES

• SCAB
• CONTROL
• STRAW, STRAW MANURE
• SOIL REACTION
• IRRIGATION

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BACTERIAL DISEASES

• BLACKLEG
• (ERWINIA CAROTOVORA)
• SYMPTOMS
• (GOOD CONDITIONS)

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BACTERIAL DISEASES

• BLACKLEG
• (ERWINIA CAROTOVORA)
• SYMPTOMS
• (GOOD CONDITIONS)

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BACTERIAL DISEASES

• BLACKLEG
• (ERWINIA CAROTOVORA)
• SYMPTOMS
• (POOR CONDITIONS)

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BACTERIAL DISEASES

• BLACKLEG
• (ERWINIA CAROTOVORA)
• SYMPTOMS
• (POOR CONDITIONS)

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BACTERIAL DISEASES

• SOFT ROT
• (ERWINIA CAROTOVORA)
• SYMPTOMS

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BACTERIAL DISEASES

• SOFT ROT
• (ERWINIA CAROTOVORA)
• SYMPTOMS

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BACTERIAL DISEASES

• BLACKLEG AND SOFT ROT
• SOURCE OF INFECTION - SEEDS

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BACTERIAL DISEASES

• BLACKLEG AND SOFT ROT
• INFECTION OF TUBERS
• THROUGH STOLONES
• THROUGH LENTICELS
• THROUGH INJURIES

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BACTERIAL DISEASES

• BLACKLEG AND SOFT ROT
• CONTROL
• VARIETIES SUITABLE FOR MECHANIZED HARVEST
• HARVEST AT CORRECT POINT OF MATURITY
• HAULM DESSICATION
• PROPER HARVESTING MACHINERY
• STONELESS SOIL

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BACTERIAL DISEASES
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BACTERIAL DISEASES
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BACTERIAL DISEASES
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BACTERIAL DISEASES

• BLACKLEG AND SOFT ROT
• CONTROL
• HARVEST LATER DURING THE DAY
• SORTING AFTER STORAGE
• CORRECT REGIME AND TEMPERATURE OF STORAGE
• PLANTING INTO WARM SOIL WITH GOOD STRUCTURE

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BACTERIAL DISEASES

• RING ROT
• (CLAVIBACTER MICHIGANENSIS SSP. SEPEDONICUS)
• SYMPTOMS

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BACTERIAL DISEASES

• RING ROT
• (CLAVIBACTER MICHIGANENSIS SSP. SEPEDONICUS)
• SYMPTOMS

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BACTERIAL DISEASES

• RING ROT
• (CLAVIBACTER MICHIGANENSIS SSP. SEPEDONICUS)
• SYMPTOMS

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BACTERIAL DISEASES

• RING ROT
• (CLAVIBACTER MICHIGANENSIS)
• CONTROL
• QUARANTINE
• CERTIFIED SEEDS

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BACTERIAL DISEASES

• BROWN ROT
• (PSEUDOMONAS
• (RALSTONIA) SOLANACEARUM)

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BACTERIAL DISEASES

• BROWN ROT
• (PSEUDOMONAS
• (RALSTONIA) SOLANACEARUM)

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BACTERIAL DISEASES

• BROWN ROT
• (PSEUDOMONAS (RALSTONIA) SOLANACEARUM)
• CONTROL
• CLEAN SEEDS
• CROP ROTATION

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FUNGAL DISEASES
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FUNGAL DISEASES

• WART
• (SYNCHYTRIUM ENDOBIOTICUM)
• SYMPTOMS

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FUNGAL DISEASES

• WART
• (SYNCHYTRIUM ENDOBIOTICUM)
• CONTROL
• QURANTINE
• RESISTANT VARIETIES
• UREA?

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FUNGAL DISEASES

• LATE BLIGHT
• (PHYTOPHTHORA INFESTANS)
• SYMPTOMS

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FUNGAL DISEASES

• LATE BLIGHT
• (PHYTOPHTHORA INFESTANS)
• SYMPTOMS

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FUNGAL DISEASES

• LATE BLIGHT
• (PHYTOPHTHORA INFESTANS)
• SYMPTOMS

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FUNGAL DISEASES

• LATE BLIGHT
• (PHYTOPHTHORA INFESTANS)
• SYMPTOMS

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FUNGAL DISEASES

• LATE BLIGHT
• (PHYTOPHTHORA INFESTANS)
• SYMPTOMS

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FUNGAL DISEASES

• LATE BLIGHT
• (PHYTOPHTHORA INFESTANS)
• SOURCES OF INFECTION
• SEEDS, VOLUNTEER PLANTS
• (OOSPORES)

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FUNGAL DISEASES

• LATE BLIGHT
• (PHYTOPHTHORA INFESTANS)
• HAULM INFECTION
• SYSTEMIC INFECTION
• SPORANGIA FROM TUBERS IN SOIL

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FUNGAL DISEASES

• LATE BLIGHT
• (PHYTOPHTHORA INFESTANS)
• INFECTION OF TUBERS
• SPORANGIA WASHED FROM LEAVES BY RAIN (IRRIGATION)
• DIRECT CONTACT OF TUBERS WITH INFECTED HAULM
  DURING HARVEST

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FUNGAL DISEASES
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FUNGAL DISEASES

• LATE BLIGHT
• (PHYTOPHTHORA INFESTANS)
• CONTROL
• LOCALITY
• VARIETY (HAULM x TUBERS)
• SPROUTING OF SEEDS, EARLY PLANTING)
• REMOVING OF STONES
• BALANCED FERTILIZATION
• ORGANIZATION AND WEEDLESSNESS OF THE STAND
• DESTROYING OF NON HARVESTED TUBERS
• CHEMICAL CONTROL

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FUNGAL DISEASES

• LATE BLIGHT
• (PHYTOPHTHORA INFESTANS)
• CHEMICAL CONTROL
• CONTACT X SYSTEMIC FUNGICIDES
• END OF VEGETATION
• BLIGHT X DESSICATION

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FUNGAL DISEASES

• LATE BLIGHT
• (PHYTOPHTHORA INFESTANS)
• SOLUTION OF CRITICAL SITUATIONS
• DESTROYING OF HAULM (CCA 20 OF INFECTION)
• (MASSIVE) INFECTION OF TUBERS LET TO ROT THEM
  IN SOIL, THEN DECIDE HARVEST OR NOT

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FUNGAL DISEASES

• BLACK SCURF
• (RHIZOCTONIA SOLANI)
• SYMPTOMS

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FUNGAL DISEASES

• BLACK SCURF
• (RHIZOCTONIA SOLANI)
• SYMPTOMS

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FUNGAL DISEASES

• RHIZOCTONIA ROT
• (RHIZOCTONIA SOLANI)
• SYMPTOMS

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FUNGAL DISEASES

• RHIZOCTONIA CANKER
• (RHIZOCTONIA SOLANI)
• SYMPTOMS

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FUNGAL DISEASES

• (RHIZOCTONIA SOLANI)
• SYMPTOMS

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FUNGAL DISEASES

• RHIZOCTONIA
• CONTROL
• HARVEST IN TIME
• CROP ROTATION
• NITROGEN
• PLANTING INTO WARM SOIL WITH GOOD STRUCTURE
• SEED TREATMENT

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FUNGAL DISEASES

• EARLY BLIGHT
• (ALTERNARIA SOLANI)
• SYMPTOMS

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FUNGAL DISEASES

• EARLY BLIGHT
• (ALTERNARIA SOLANI)
• CONTROL
• (CHEMICAL CONTROL OF LATE BLIGHT)

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FUNGAL DISEASES

• COLLETOTRICHUM WILT
• (COLLETOTRICHUM ATRAMENTARIUM)
• SYMPTOMS

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FUNGAL DISEASES

• DRY ROTS (GANGRENE)
• (FUSARIUM, PHOMA)
• SYMPTOMS

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FUNGAL DISEASES

• DRY ROTS (GANGRENE)
• (FUSARIUM, PHOMA)
• SYMPTOMS

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FUNGAL DISEASES

• DRY ROTS (GANGRENE)
• (FUSARIUM, PHOMA)
• SOURCES OF INFECTION
• SOIL
• SEEDS

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FUNGAL DISEASES

• DRY ROTS (GANGRENE)
• (FUSARIUM, PHOMA)
• CONTROL
• SEE BLACKLEG AND SOFT ROT
• (SEED TREATMENT)