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Grape disease

أعفان ثمار العنب. Grape disease. أعفان الثمار. العفن الحمضى العفن الرمادى أخرى. أعفان ثمار العنب. عفن الأسبرجلس Aspergillus rot عفن الكلادوسبوريوم Cladosporium rot عفن الألترناريا Alternaria rot عفن البنيسيليوم Penicillium rot العفن الرمادى Grey mould rot.

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Grape disease

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  1. أعفان ثمار العنب Grape disease

  2. أعفان الثمار • العفن الحمضى • العفن الرمادى • أخرى

  3. أعفان ثمار العنب عفن الأسبرجلس Aspergillus rot عفن الكلادوسبوريوم Cladosporium rot عفن الألترناريا Alternaria rot عفن البنيسيليوم Penicillium rot العفن الرمادى Grey mould rot

  4. Apsergillus niger

  5. Aspergillus niger

  6. Rhizopus stolonifer

  7. Rhizopus stolonifer

  8. عفن الكلادوسبوريوم Cladosporium rot Cladosporium spp.

  9. عفن الألترناريا Alternaria rot Alternaria spp.

  10. عفن البنيسيليوم Penicillium rot Penicillium expansum Penicillium citrinum Penicillium cyclopium

  11. بوتريتس

  12. Botrytis on Thompson Seedless

  13. Botrytis on grapes at arrival

  14. What is Botrytis?! • Widespread fungus • Infect many crops • Grape  Strawberry • Snap beans  Green beans • Melons  Cucumber • Stone fruits  Tomato • Pome fruits Onion & Garlic

  15. Botrytis cinereaconidiophores and conidia

  16. Gray Moldpenetration Phytopathology 85:82-87.1995

  17. Botrytis cinereaconidia germination 20 ºC 10 ºC 30 ºC 0 ºC

  18. Botrytis cinereaconidia germination • temperature dependent • low in sterile distilled water • stimulated by pollen • stimulated by leaf or berry exudates

  19. Botrytis cinereasclerotia commonly found on shoots following early frost damage in the fall

  20. Botrytis on Flame Seedless

  21. الأصناف Cultivars Flame Seedless Thompson King Ruby Early Superior Crimson Perlette

  22. pH

  23. نظافة المزرعة

  24. نظم التدعيم Trellising system • T system • Double T, Y & V system • Pergola • Gable system

  25. Grape berry split

  26. Grape insects (Tuber moth)

  27. Grape insects (Tuber moth)

  28. Grape insects (Tuber moth)

  29. التنبؤ بحدوث المرض هو رسالة لبدء تطبيق المبيدات نظام التنبؤ بالمرض النباتى: Thomas et al, 1994 نموذج التنبؤ بالمرض النباتى هو وصف حسابى للتفاعل بين البيئة (ظروف جوية) والعائل النباتى و / أو بيانات المسبب المرضى (متغيراته) والتى تتسبب فى حدوث المرض.

  30. Ln(y/(1y)) = b°+b1W+b2WT+b3WT2 • (Broome et al., 1995)

  31. Weather Station

  32. Weather Stationsensors next to the clusters

  33. Infection vs. Temperature 70 cv. Thompson Seedless 60 50 40 Disease incidence, %) 30 20 10 0 0 5 10 15 20 25 30 Temperature, °C Dry inoculation Wet inoculation

  34. Temperature vs Incubation 14 cv. Thompson Seedless 12 10 8 Incubation, days 6 4 2 0 0 5 10 15 20 25 30 Temperature, ºC Dry inoculation Wet inoculation

  35. Gray moldtemperature vs free water

  36. Alex 60-69% Desert road 56%

  37. Gray Mold epidemiological model canopy Micro Environ irrigation Grape light Gray mold temper nutrition free water N relative humidity Ca inoculum source K resveratrol B. cinerea conidia

  38. تهوية Aeration • Canopy orientation • Leaf removal • Bunch orientation

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