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Pruning 101

Pruning 101. 4 Reasons for Pruning -Safety -Health -Aesthetics -Production. Balanced Renewal. Strong Tree Framework. Facilitate Management. Harvest Sunlight Efficiently. Maintain Productivity. Faster growth Earlier fruiting Less light penetration Poor spray coverage

susanhernandez
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Pruning 101

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  1. Pruning 101

  2. 4 Reasons for Pruning -Safety -Health -Aesthetics -Production

  3. Balanced Renewal Strong Tree Framework Facilitate Management Harvest Sunlight Efficiently Maintain Productivity

  4. Faster growth • Earlier fruiting • Less light penetration • Poor spray coverage • More difficult to manage What happens if you do not prune?

  5. Crown Thinning

  6. Crown Reduction

  7. Vertical trunk Well Distributed Scaffolds Establish a Strong Tree Framework

  8. Wide branch angles are stronger • Narrow angles are weak and increase shading inside canopy Establish a Strong Tree Framework

  9. Major objective of the first three years • Must last the lifetime of the tree • Structural support for fruit crop • Should not be crowded A Strong Tree Framework:

  10. Poor fruit color • Poor fruit distribution • Less fruit bud development • Poor fruit size • Poor fruit flavor Poor Light Intensity Leads to Harvest Sunlight Harvest Efficiently:

  11. Harvest Sunlight Efficiently:Light Intensity Affects Fruit Color and Size

  12. Harvest Sunlight Efficiently:Light Intensity Affects Fruit Color and Size

  13. Fruiting wood which hangs down • Fruiting wood which is shaded • Water sprouts and root suckers • Diseased or damaged wood • Weak or thin wood Maintain Productivity:Remove Unproductive Wood

  14. Remove weak or thin wood Maintain Productivity:Remove Unproductive Wood

  15. Thin out excessively vigorous vegetative growth during summer • Allows light into center of tree Maintain Productivity:Maintain good vegetative:fruit balance

  16. Remove excessive fruiting wood • In peaches - remove 40-60% of new fruiting wood each year Maintain Productivity:Maintain good vegetative/fruit balance

  17. Manipulation of apical dominance • Controlled by the plant hormone auxin • Produced by actively growing shoots • Moves down the branch with gravity Tools used in Tree Training

  18. Inhibits lateral bud break • Inhibits lateral shoot growth • Affects branch angle Effects of auxin

  19. Heading Cut • Remove part of the branch • Stimulate bud break near cut • Stimulate localized branching PruningRemove the Source of Auxin

  20. Thinning cut • Remove branch at point of origin • Least invigorating cut • Promote light penetration into canopy • Maintenance pruning PruningRemove the Source of Auxin

  21. Cutting Tools

  22. How to Cut

  23. Poor Cuts

  24. https://www.youtube.com/watch?v=BN6zFEqscHQ Apple Tree Example

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