Viticulture 2 Test 2

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Author:
Komatchi
ID:
247473
Filename:
Viticulture 2 Test 2
Updated:
2013-11-18 14:14:22
Tags:
Viticulture
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Description:
Viticulture
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  1. Crown Gall
    • Gall is a symptom of the disease.
    • Inhibits water sugar movement in plants.
    • Predisposes to winter injury and vine dieback.
  2. Crown Gall Symptoms and management
    • Normally develop with wounds.
    • Use pathogen free rootstock.
    • Remove diseased vines
    • Try not to replant in that area
  3. Nematodes
    • Cause hormonal imbalance in plants.
    • SOME MAY TRANSMIT VIRUSES
    • Check before planting.
  4. Pierce's disease
    • Caused by xylem-limited bacterium
    • Transmitted by sharpshooters (a type of leafhopper)
  5. Pierces disease control
    • Control leafhoppers
    • Eridicate infected plants
    • Eridicate alternate hosts
  6. Leafroll
    • Red leaves
    • Downward rolling leaf
    • Transmitted by propagation
  7. Fanleaf Virus
    • Leaf malformations
    • Yellow tent (looks like venial chlorosis)
    • Transmitted by dagger nematode
  8. Powdery Mildew
    • Premature lead drop
    • Reduced yeild
    • Fruit infections

    Fungicides: Strobilurons & DMI
  9. Leafhoppers
    Zic-Zac is common in Colorado
  10. Anagrus epos is a species of fairyfly used as a control (parasitoid to leafhopper)
    • Sensitive to sulfur
    • Sensitive to insectides
  11. Black Rot
    • Remove mummies to help prevent
    • Attacks both leaves and fruit
    • Vinifera susecptable
  12. Botryis Bunch Rot
    • Favored in tight clusters of berries.
    • Likes rain later in the season
    • Can also be started by insect injury

    • Avoid wounding
    • Apply fungicide
    • Remove leaves around cluster

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