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Plum Pox Virus

Plum Pox Virus. Plum Pox Virus. Plum Pox Virus. Plum Pox Virus. Also Known as Sharka or PPV A Devastating Viral Disease o f Stone Fruit, Ornamental Shrubs and Trees from The Genus - Prunus. Peaches Plums. Apricots Nectarines. Sweet & Tart Cherries. Almonds.

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Plum Pox Virus

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  1. Plum Pox Virus Plum Pox Virus

  2. Plum Pox Virus Plum Pox Virus Also Known as Sharka or PPV A Devastating Viral Disease of Stone Fruit, Ornamental Shrubs and Trees from The Genus - Prunus

  3. Peaches Plums

  4. Apricots Nectarines

  5. Sweet & Tart Cherries

  6. Almonds

  7. Confirmed Locations of PPV in the United States

  8. SymptomsVary According To TheType and Severity of The Disease Strain • Leaf Symptoms: • Vein Yellowing, Light Green or Yellow Rings, May Show Crinkling, Puckering, Curling • Fruit Symptoms: • Ring Patterns, Blotches, Flesh Discoloration, Misshaped, Deformed • Flower Symptoms: • Color Breaking or Streaking in Flowers of PPV Infected Peach Blossoms.

  9. PPV Presence in Leaves

  10. Deformed Fruit & Stones

  11. PPV Present InPeach Blossoms

  12. PPV Virus • Symptoms May Not Show For 3 Years • Disease Reduces Fruit Yield & Fruit Quality • Fruit Tastes Fine But Unappealing To The Eye • Economic Impact To The Peach, Plum, Apricot Industry Worldwide - $600 Million Per Year

  13. PPV Virus • Six Strains of Virus • Strain D - The Strain Found in North America • This Strain Only Infects Peaches, Nectarines, Apricots, Plums, • No Treatment - No Cure

  14. Transmission & Spread • Short Distance Spread Result of Aphid Transmission • Several Aphid Species Can Transmit PPV – • Northeastern US Concerned With Black Bean Aphid Spirea Aphid Black Peach Aphid Green Peach Aphid • Long Distance Spread By Movement of Infected Plants or Plant Parts

  15. How To Manage PPV Natural or Chemical Application May Reduce Aphid Numbers But Impossible To Entirely Control Aphid Population

  16. Management of PPV • Exclusion • Growers & Nursery Propagators Purchase Only Certified Virus Tested Plant Stock • Detection • Testing of Leaf Samples • Resistance • Plant Resistance Using Genetic Engineering • Inserting PPV Gene Fragments Into Plum Trees To Gain High Resistance to PPV • In Early Experimental Stages

  17. Tree Farms

  18. Eradication • Eradication Is The Most Successful Treatment • Timely Removal Of Diseased Trees Once A Tree Is Confirmed To Be A Carrier Of PPV It Must Be Eliminated • Stumps Must Also Be Treated Herbicides Used To Prevent Re-growth - Sucker Shoots

  19. Questions?

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