Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
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 Peaches Plums Apricots Nectarines Sweet & Tart Cherries Almonds Confirmed Locations of PPV in the United States Symptoms Vary According To The Type 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. PPV Presence in Leaves Deformed Fruit & Stones PPV Present In Peach Blossoms 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 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 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 How To Manage PPV Natural or Chemical Application May Reduce Aphid Numbers But Impossible To Entirely Control Aphid Population 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 Tree Farms 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 Treated Be Herbicides Used To Prevent Re-growth - Sucker Shoots Questions?