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Diseases of Solanaceous Crops

Diseases of Solanaceous Crops. Early Blight Alternaria solani. Phoma Blight. Target Spot. Leaf Mold. Timber Rot or White Mold Sclerotinia sclerotiorum. Buckeye Rot Phytophthora spp. Blossom end rot. Management of Foliar & Fruit Diseases. Sanitation Increase plant spacing

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Diseases of Solanaceous Crops

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  1. Diseases of Solanaceous Crops

  2. Early Blight Alternaria solani

  3. Phoma Blight Target Spot Leaf Mold

  4. Timber Rot or White MoldSclerotinia sclerotiorum

  5. Buckeye RotPhytophthora spp.

  6. Blossom end rot

  7. Management of Foliar & Fruit Diseases • Sanitation • Increase plant spacing • Reduce plant canopy density • Avoid overhead watering • Resistant varieties • Fungicides

  8. Bacterial SpeckPseudomonas syringaepv. tomato

  9. Bacterial SpotXanthomonascampestrispv. vesicatoria

  10. Bacterial SpotXanthomonascampestrispv. vesicatoria

  11. Root Knot NematodesMeloidogyne spp.

  12. Management of Root Knot Nematodes • Resistant varieties • Rotation • Green manures • Remove infected plants (esp. roots) • Trap crops • Summer fallow, solarization

  13. Fusarium Wilt Fusarium oxysporumf.sp. lycopersici

  14. Management of Fusarium Wilt • Resistant varieties • Rotation • Maintain soil pH near 7 • Use calcium nitrate

  15. Southern BlightSclerotiumrolfsii

  16. Management of Southern Blight • Do not plant tomatoes after susceptible crops (peppers, eggplant, etc.) • Use calcium nitrate • Physical barrier at stem • Bury sclerotia

  17. Southern Bacterial WiltRalstonia (Pseudomonas) solanacearum

  18. Management of Southern Bacterial Wilt • Rotation: minimum of 3 years Use: corn, beans & cabbage Do Not Use: pepper, eggplant, potato • Resistant (partial) tomato varieties: Neptune (Southern Exposure Seed Exchange) BHN 466 & 669 (BHN) FL 7514 (Rupp)

  19. Tomato Spotted Wilt Virus

  20. Management of Tomato Spotted Wilt Virus • Resistant varieties • Manage thrips: metallized mulches, insecticides • Remove plants immediately after harvest

  21. TSWV-Resistant Tomato Varieties • Fletcher (NCSU) • Florida 7964 (UF) • Mountain Glory (NCSU) • Red Defender (Harris Moran) • Redline(Rogers) • Talladega(Rogers) • Top Gun (Seminis) • Amelia(Harris Moran) • Bella Rosa (Sakata) • BHN 444 (BHN) • BHN 602 (BHN) • BHN 640 (BHN) • Crista(Harris Moran) • Finishline(Harris Moran)

  22. Tomato Spotted Wilt Virus

  23. TSWV-Resistant Pepper Varieties • Excursion II (Abbott & Cobb) • Heritage(Harris Moran) • Plato(Seminis) • Stiletto(Rogers) • Declaration (Harris Moran) • Magico(Harris Moran)

  24. Glyphosate injury

  25. Phenoxy herbicide injury

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