1. POTATO DISEASES

2. INJURIES AND DISORDERS
BLACKHEART

3. INJURIES AND DISORDERS
FROST

4. INJURIES AND DISORDERS
FROST

5. INJURIES AND DISORDERS
FROST

6. INJURIES AND DISORDERS
FROST

7. INJURIES AND DISORDERS
INTERNAL RUSTY SPOTS

8. INJURIES AND DISORDERS
INTERNAL RUSTY SPOTS

9. INJURIES AND DISORDERS
SECOND GROWTH AND JELLY-END ROT

10. INJURIES AND DISORDERS
JELLY-END ROT

11. INJURIES AND DISORDERS
TUBERS DAMAGED BY MANIPULATION (THUMBNAIL CRACKS)

12. VIRUS DISEASES

13. VIRUS DISEASES - SYMPTOMS
COMMON MOSAIC

14. VIRUS DISEASES - SYMPTOMS
AUCUBA MOSAIC

15. VIRUS DISEASES - SYMPTOMS
VEIN NECROSIS

16. VIRUS DISEASES - SYMPTOMS
VEIN NECROSIS

17. VIRUS DISEASES - SYMPTOMS
VEIN NECROSIS

18. VIRUS DISEASES - SYMPTOMS
NECROSIS OF TUBERS

19. VIRUS DISEASES - SYMPTOMS
NECROSIS OF TUBERS

20. VIRUS DISEASES - SYMPTOMS
NECROSIS OF TUBERS

21. VIRUS DISEASES - SYMPTOMS
LEAF CURL

22. VIRUS DISEASES - SYMPTOMS
LEAF CURL

23. VIRUS DISEASES - SYMPTOMS
LEAF ROLL

24. VIRUS DISEASES - SYMPTOMS
STUNTING
CHLOROSIS
ATROPHY

25. VIRUS DISEASES – SYMPTOMS
LATENT INFECTION – S VIRUS

26. VIRUS DISEASES – SYMPTOMS
YIELD

27. VIRUS DISEASES – SYMPTOMS
TOTALLY INFECTED STAND

28. 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

29. IMPORTANCE OF VIRUS DISEASES (CZECH REPUBLIC)
TOTAL LOSSES -
S VIRUS
ACUTE LOSSES – Y VIRUS

30. VIRUS TRANSMISSION
SEEDS
ALL VIRUSES (THE MOST IMPORTANT MODE)

31. APHIDS (MYZUS PERSICAE)
VIRUS TRANSMISSION
APHIDS (MYZUS PERSICAE)
S, M, A, Y – NONPERSISTENT
LEAF ROLL VIRUS – PERSISTENT

32. VIRUS TRANSMISSION MECHANICAL
ALL VIRUSES WITH THE EXCEPTION OF LEAF ROLL VIRUS

33. CULTURAL PRACTICES (ALL TO BE DONE BY SEED POTATO GROWER!)
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

34. VIRUS CONTROL FIGHT AGAINST VECTORS GRANULATED INSECTICIDES
SEED TREATMENT
SPRAYING

35. BACTERIAL DISEASES

36. BACTERIAL DISEASES
SCAB
(STREPTOMYCES SCABIES)
SYMPTOMS

37. BACTERIAL DISEASES SCAB (STREPTOMYCES SCABIES) SYMPTOMS
(RAISED, FLAT, PITTED)

38. BACTERIAL DISEASES
SCAB
SOURCE OF INFECTION: SOIL

39. BACTERIAL DISEASES SCAB CONTROL: STRAW, STRAW MANURE SOIL REACTION
IRRIGATION

40. BACTERIAL DISEASES BLACKLEG (ERWINIA CAROTOVORA) SYMPTOMS
(GOOD CONDITIONS)

41. BACTERIAL DISEASES BLACKLEG (ERWINIA CAROTOVORA) SYMPTOMS
(GOOD CONDITIONS)

42. BACTERIAL DISEASES BLACKLEG (ERWINIA CAROTOVORA) SYMPTOMS
(POOR CONDITIONS)

43. BACTERIAL DISEASES BLACKLEG (ERWINIA CAROTOVORA) SYMPTOMS
(POOR CONDITIONS)

44. BACTERIAL DISEASES
SOFT ROT
(ERWINIA CAROTOVORA)
SYMPTOMS

45. BACTERIAL DISEASES
SOFT ROT
(ERWINIA CAROTOVORA)
SYMPTOMS

46. BACTERIAL DISEASES
BLACKLEG AND SOFT ROT
SOURCE OF INFECTION - SEEDS

47. BACTERIAL DISEASES INFECTION OF TUBERS THROUGH STOLONES
BLACKLEG AND SOFT ROT
INFECTION OF TUBERS
THROUGH STOLONES
THROUGH LENTICELS
THROUGH INJURIES

48. 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

49. BACTERIAL DISEASES

50. BACTERIAL DISEASES

51. BACTERIAL DISEASES

52. 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

53. BACTERIAL DISEASES RING ROT
(CLAVIBACTER MICHIGANENSIS SSP. SEPEDONICUS)
SYMPTOMS

54. BACTERIAL DISEASES RING ROT
(CLAVIBACTER MICHIGANENSIS SSP. SEPEDONICUS)
SYMPTOMS

55. BACTERIAL DISEASES RING ROT
(CLAVIBACTER MICHIGANENSIS SSP. SEPEDONICUS)
SYMPTOMS

56. (CLAVIBACTER MICHIGANENSIS)
BACTERIAL DISEASES
RING ROT
(CLAVIBACTER MICHIGANENSIS)
CONTROL
QUARANTINE
CERTIFIED SEEDS

57. BACTERIAL DISEASES
BROWN ROT
(PSEUDOMONAS
(RALSTONIA) SOLANACEARUM)

58. BACTERIAL DISEASES
BROWN ROT
(PSEUDOMONAS
(RALSTONIA) SOLANACEARUM)

59. (PSEUDOMONAS (RALSTONIA) SOLANACEARUM)
BACTERIAL DISEASES
BROWN ROT
(PSEUDOMONAS (RALSTONIA) SOLANACEARUM)
CONTROL
CLEAN SEEDS
CROP ROTATION

60. FUNGAL DISEASES

61. FUNGAL DISEASES
WART
(SYNCHYTRIUM ENDOBIOTICUM)
SYMPTOMS

62. (SYNCHYTRIUM ENDOBIOTICUM)
FUNGAL DISEASES
WART
(SYNCHYTRIUM ENDOBIOTICUM)
CONTROL
QURANTINE
RESISTANT VARIETIES
UREA?

63. FUNGAL DISEASES
LATE BLIGHT
(PHYTOPHTHORA INFESTANS)
SYMPTOMS

64. FUNGAL DISEASES
LATE BLIGHT
(PHYTOPHTHORA INFESTANS)
SYMPTOMS

65. FUNGAL DISEASES
LATE BLIGHT
(PHYTOPHTHORA INFESTANS)
SYMPTOMS

66. FUNGAL DISEASES
LATE BLIGHT
(PHYTOPHTHORA INFESTANS)
SYMPTOMS

67. FUNGAL DISEASES
LATE BLIGHT
(PHYTOPHTHORA INFESTANS)
SYMPTOMS

68. (PHYTOPHTHORA INFESTANS)
FUNGAL DISEASES
LATE BLIGHT
(PHYTOPHTHORA INFESTANS)
SOURCES OF INFECTION
SEEDS, VOLUNTEER PLANTS
(OOSPORES)

69. (PHYTOPHTHORA INFESTANS)
FUNGAL DISEASES
LATE BLIGHT
(PHYTOPHTHORA INFESTANS)
HAULM INFECTION
SYSTEMIC INFECTION
SPORANGIA FROM TUBERS IN SOIL

70. (PHYTOPHTHORA INFESTANS)
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

71. FUNGAL DISEASES

72. (PHYTOPHTHORA INFESTANS)
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

73. (PHYTOPHTHORA INFESTANS)
FUNGAL DISEASES
LATE BLIGHT
(PHYTOPHTHORA INFESTANS)
CHEMICAL CONTROL
CONTACT X SYSTEMIC FUNGICIDES
END OF VEGETATION
BLIGHT X DESSICATION

74. (PHYTOPHTHORA INFESTANS) SOLUTION OF CRITICAL SITUATIONS
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

75. FUNGAL DISEASES
BLACK SCURF
(RHIZOCTONIA SOLANI)
SYMPTOMS

76. FUNGAL DISEASES
BLACK SCURF
(RHIZOCTONIA SOLANI)
SYMPTOMS

77. FUNGAL DISEASES
RHIZOCTONIA ROT
(RHIZOCTONIA SOLANI)
SYMPTOMS

78. FUNGAL DISEASES
RHIZOCTONIA CANKER
(RHIZOCTONIA SOLANI)
SYMPTOMS

79. FUNGAL DISEASES
(RHIZOCTONIA SOLANI)
SYMPTOMS

80. FUNGAL DISEASES CONTROL RHIZOCTONIA HARVEST IN TIME CROP ROTATION
NITROGEN
PLANTING INTO WARM SOIL WITH GOOD STRUCTURE
SEED TREATMENT

81. FUNGAL DISEASES
EARLY BLIGHT
(ALTERNARIA SOLANI)
SYMPTOMS

82. FUNGAL DISEASES CONTROL (CHEMICAL CONTROL OF LATE BLIGHT) EARLY BLIGHT
(ALTERNARIA SOLANI)
CONTROL
(CHEMICAL CONTROL OF LATE BLIGHT)

83. FUNGAL DISEASES SYMPTOMS COLLETOTRICHUM WILT
(COLLETOTRICHUM ATRAMENTARIUM)
SYMPTOMS

84. FUNGAL DISEASES
DRY ROTS (GANGRENE)
(FUSARIUM, PHOMA)
SYMPTOMS

85. FUNGAL DISEASES
DRY ROTS (GANGRENE)
(FUSARIUM, PHOMA)
SYMPTOMS

86. FUNGAL DISEASES DRY ROTS (GANGRENE) SOURCES OF INFECTION: SOIL SEEDS
(FUSARIUM, PHOMA)
SOURCES OF INFECTION:
SOIL
SEEDS

87. FUNGAL DISEASES CONTROL SEE BLACKLEG AND SOFT ROT (SEED TREATMENT)
DRY ROTS (GANGRENE)
(FUSARIUM, PHOMA)
CONTROL
SEE BLACKLEG AND SOFT ROT
(SEED TREATMENT)