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POTATO DISEASES
INJURIES AND DISORDERS
BLACKHEART
INJURIES AND DISORDERS
FROST
INJURIES AND DISORDERS
FROST
INJURIES AND DISORDERS
FROST
INJURIES AND DISORDERS
FROST
INJURIES AND DISORDERS
INTERNAL RUSTY SPOTS
INJURIES AND DISORDERS
INTERNAL RUSTY SPOTS
INJURIES AND DISORDERS
SECOND GROWTH AND JELLY-END ROT
INJURIES AND DISORDERS
JELLY-END ROT
INJURIES AND DISORDERS
TUBERS DAMAGED BY MANIPULATION (THUMBNAIL CRACKS)
VIRUS DISEASES
VIRUS DISEASES - SYMPTOMS
COMMON MOSAIC
VIRUS DISEASES - SYMPTOMS
AUCUBA MOSAIC
VIRUS DISEASES - SYMPTOMS
VEIN NECROSIS
VIRUS DISEASES - SYMPTOMS
VEIN NECROSIS
VIRUS DISEASES - SYMPTOMS
VEIN NECROSIS
VIRUS DISEASES - SYMPTOMS
NECROSIS OF TUBERS
VIRUS DISEASES - SYMPTOMS
NECROSIS OF TUBERS
VIRUS DISEASES - SYMPTOMS
NECROSIS OF TUBERS
VIRUS DISEASES - SYMPTOMS
LEAF CURL
VIRUS DISEASES - SYMPTOMS
LEAF CURL
VIRUS DISEASES - SYMPTOMS
LEAF ROLL
VIRUS DISEASES - SYMPTOMS
STUNTING
CHLOROSIS
ATROPHY
VIRUS DISEASES – SYMPTOMS
LATENT INFECTION – S VIRUS
VIRUS DISEASES – SYMPTOMS
YIELD
VIRUS DISEASES – SYMPTOMS
TOTALLY INFECTED STAND
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
IMPORTANCE OF VIRUS DISEASES (CZECH REPUBLIC)
TOTAL LOSSES -
S VIRUS
ACUTE LOSSES – Y VIRUS
VIRUS TRANSMISSION
SEEDS
ALL VIRUSES (THE MOST IMPORTANT MODE)
VIRUS TRANSMISSION
APHIDS (MYZUS PERSICAE)
S, M, A, Y – NONPERSISTENT
LEAF ROLL VIRUS – PERSISTENT
VIRUS TRANSMISSION
MECHANICAL
ALL VIRUSES WITH THE EXCEPTION OF LEAF ROLL VIRUS
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
VIRUS CONTROL
FIGHT AGAINST VECTORS
GRANULATED INSECTICIDES
SEED TREATMENT
SPRAYING
BACTERIAL DISEASES
BACTERIAL DISEASES
SCAB
(STREPTOMYCES SCABIES)
SYMPTOMS
BACTERIAL DISEASES
SCAB
(STREPTOMYCES SCABIES)
SYMPTOMS(RAISED, FLAT, PITTED)
BACTERIAL DISEASES
SCAB
SOURCE OF INFECTION: SOIL
BACTERIAL DISEASES
SCABCONTROL:
STRAW, STRAW MANURESOIL REACTIONIRRIGATION
BACTERIAL DISEASES
BLACKLEG
(ERWINIA CAROTOVORA)
SYMPTOMS (GOOD
CONDITIONS)
BACTERIAL DISEASES
BLACKLEG
(ERWINIA CAROTOVORA)
SYMPTOMS (GOOD
CONDITIONS)
BACTERIAL DISEASES
BLACKLEG
(ERWINIA CAROTOVORA)
SYMPTOMS (POOR
CONDITIONS)
BACTERIAL DISEASES
BLACKLEG
(ERWINIA CAROTOVORA)
SYMPTOMS (POOR
CONDITIONS)
BACTERIAL DISEASES
SOFT ROT
(ERWINIA CAROTOVORA)
SYMPTOMS
BACTERIAL DISEASES
SOFT ROT
(ERWINIA CAROTOVORA)
SYMPTOMS
BACTERIAL DISEASES
BLACKLEG AND SOFT ROT
SOURCE OF INFECTION - SEEDS
BACTERIAL DISEASES
BLACKLEG AND SOFT ROT
INFECTION OF TUBERS
THROUGH STOLONES
THROUGH LENTICELS
THROUGH INJURIES
BACTERIAL DISEASES
BLACKLEG AND SOFT ROTCONTROL
VARIETIES SUITABLE FOR MECHANIZED HARVESTHARVEST AT CORRECT POINT OF MATURITYHAULM DESSICATIONPROPER HARVESTING MACHINERYSTONELESS SOIL
BACTERIAL DISEASES
BACTERIAL DISEASES
BACTERIAL DISEASES
BACTERIAL DISEASES
BLACKLEG AND SOFT ROTCONTROL
HARVEST LATER DURING THE DAYSORTING AFTER STORAGECORRECT REGIME AND TEMPERATURE OF STORAGEPLANTING INTO WARM SOIL WITH GOOD STRUCTURE
BACTERIAL DISEASES
RING ROT
(CLAVIBACTER MICHIGANENSIS SSP. SEPEDONICUS)
SYMPTOMS
BACTERIAL DISEASES
RING ROT
(CLAVIBACTER MICHIGANENSIS SSP. SEPEDONICUS)
SYMPTOMS
BACTERIAL DISEASES
RING ROT
(CLAVIBACTER MICHIGANENSIS SSP. SEPEDONICUS)
SYMPTOMS
BACTERIAL DISEASES
RING ROT
(CLAVIBACTER MICHIGANENSIS)
CONTROL
QUARANTINE
CERTIFIED SEEDS
BACTERIAL DISEASES
BROWN ROT
(PSEUDOMONAS
(RALSTONIA) SOLANACEARUM)
BACTERIAL DISEASES
BROWN ROT
(PSEUDOMONAS
(RALSTONIA) SOLANACEARUM)
BACTERIAL DISEASES
BROWN ROT
(PSEUDOMONAS (RALSTONIA) SOLANACEARUM)
CONTROL
CLEAN SEEDS
CROP ROTATION
FUNGAL DISEASES
FUNGAL DISEASES
WART
(SYNCHYTRIUM ENDOBIOTICUM)
SYMPTOMS
FUNGAL DISEASES
WART
(SYNCHYTRIUM ENDOBIOTICUM)
CONTROL
QURANTINE
RESISTANT VARIETIES
UREA?
FUNGAL DISEASES
LATE BLIGHT
(PHYTOPHTHORA INFESTANS)
SYMPTOMS
FUNGAL DISEASES
LATE BLIGHT
(PHYTOPHTHORA INFESTANS)
SYMPTOMS
FUNGAL DISEASES
LATE BLIGHT
(PHYTOPHTHORA INFESTANS)
SYMPTOMS
FUNGAL DISEASES
LATE BLIGHT
(PHYTOPHTHORA INFESTANS)
SYMPTOMS
FUNGAL DISEASES
LATE BLIGHT
(PHYTOPHTHORA INFESTANS)
SYMPTOMS
FUNGAL DISEASES
LATE BLIGHT
(PHYTOPHTHORA INFESTANS)
SOURCES OF INFECTION
SEEDS, VOLUNTEER PLANTS
(OOSPORES)
FUNGAL DISEASES
LATE BLIGHT
(PHYTOPHTHORA INFESTANS)
HAULM INFECTION
SYSTEMIC INFECTION
SPORANGIA FROM TUBERS IN SOIL
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
FUNGAL DISEASES
FUNGAL DISEASES
LATE BLIGHT
(PHYTOPHTHORA INFESTANS)
CONTROLLOCALITYVARIETY (HAULM x TUBERS)SPROUTING OF SEEDS, EARLY PLANTING)REMOVING OF STONESBALANCED FERTILIZATIONORGANIZATION AND WEEDLESSNESS OF THE STANDDESTROYING OF NON HARVESTED TUBERSCHEMICAL CONTROL
FUNGAL DISEASES
LATE BLIGHT
(PHYTOPHTHORA INFESTANS)
CHEMICAL CONTROLCONTACT X SYSTEMIC FUNGICIDES
END OF VEGETATION
BLIGHT X DESSICATION
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
FUNGAL DISEASES
BLACK SCURF
(RHIZOCTONIA SOLANI)
SYMPTOMS
FUNGAL DISEASES
BLACK SCURF
(RHIZOCTONIA SOLANI)
SYMPTOMS
FUNGAL DISEASES
RHIZOCTONIA ROT
(RHIZOCTONIA SOLANI)
SYMPTOMS
FUNGAL DISEASES
RHIZOCTONIA CANKER
(RHIZOCTONIA SOLANI)
SYMPTOMS
FUNGAL DISEASES
(RHIZOCTONIA SOLANI)
SYMPTOMS
FUNGAL DISEASES
RHIZOCTONIA
CONTROL
HARVEST IN TIMECROP ROTATIONNITROGENPLANTING INTO WARM SOIL WITH GOOD STRUCTURESEED TREATMENT
FUNGAL DISEASES
EARLY BLIGHT
(ALTERNARIA SOLANI)
SYMPTOMS
FUNGAL DISEASES
EARLY BLIGHT
(ALTERNARIA SOLANI)
CONTROL
(CHEMICAL CONTROL OF LATE BLIGHT)
FUNGAL DISEASES
COLLETOTRICHUM WILT
(COLLETOTRICHUM ATRAMENTARIUM)
SYMPTOMS
FUNGAL DISEASES
DRY ROTS (GANGRENE)
(FUSARIUM, PHOMA)
SYMPTOMS
FUNGAL DISEASES
DRY ROTS (GANGRENE)
(FUSARIUM, PHOMA)
SYMPTOMS
FUNGAL DISEASES
DRY ROTS (GANGRENE)
(FUSARIUM, PHOMA)
SOURCES OF INFECTION:
SOIL
SEEDS
FUNGAL DISEASES
DRY ROTS (GANGRENE)
(FUSARIUM, PHOMA)
CONTROL
SEE BLACKLEG AND SOFT ROT
(SEED TREATMENT)
