Pruning 101 Ann Koenig Missouri Department of Conservation
General Tree Biology <ul><li>Trees grow from branch tips, not base. </li></ul>
General Tree Biology <ul><li>Trees grow from branch tips, not base. </li></ul><ul><li>Branch unions can form callus tissue...
General Tree Biology <ul><li>Trees grow from branch tips, not base. </li></ul><ul><li>Branch unions can form callus tissue...
General Tree Biology <ul><li>A tree can only  </li></ul><ul><li>“ seal” </li></ul><ul><li>itself through  </li></ul><ul><l...
 
General Tree Biology <ul><li>Trees grow from branch tips, not base. </li></ul><ul><li>Branch unions can form callus tissue...
 
 
 
 
 
Pruning New Trees <ul><li>Do not remove more than 20% of branches at this time. </li></ul><ul><li>Remove broken, crossing ...
Pruning Young Trees <ul><li>One or two years after planting, start selecting scaffold branches that have good vertical and...
Pruning Young Trees <ul><li>Wide angles </li></ul><ul><li>vertical spacing </li></ul><ul><li>Radial branch distribution  <...
Pruning Young Trees <ul><li>Remove branches when young so wounds are small and growth goes into future limbs. Remove: </li...
Inside View of Included Bark <ul><li>Included bark is shown by the pencil. </li></ul><ul><li>Branches with included bark s...
Narrow unions
Included bark between the branch/trunk union.  Note the seam or &quot;crack&quot; between the two. 
Cut open view showing lack of connective tissue at the top of the branch union.
 
Pruning Tools <ul><li>Pruning tools are either pruner or saw based </li></ul>
Pruners
When to Prune <ul><li>Generally in dormant season </li></ul><ul><li>Birch and Maple may “bleed” but not harmful. Avoid by ...
Where to make the cut
 
 
Large limb removal <ul><li>The 3 cut method </li></ul>
The undercut did its job!
<ul><li>Not under cut used. Leaves large pruning wound. </li></ul>
Rule of Thirds <ul><li>When pruning a branch, try to bring it back to a limb at least 1/3 the diameter of the limb being r...
 
 
Top 10 Worst Pruning Practices <ul><li>Neglecting a young tree </li></ul><ul><li>Dressing wounds </li></ul><ul><li>Filling...
#1 Worst Pruning Practice Topping!!!
 
Why not top trees? <ul><li>Injures tree leading to decay </li></ul><ul><li>Resulting shoots are weakly attached and easily...
 
 
 
 
Test Time
 
 
 
 
 
 
 
 
 
Ann Koenig Urban Forester Missouri Department of Conservation 1907 Hillcrest Drive Columbia, MO 65201 (573) 884-6861 [emai...
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Pruning 101

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Tree pruning presentation designed for the general public.

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  • Between 60 and 70 degrees. Radial branch distribution should allow five to seven scaffolds to fill the circle of space around a trunk. prevents overshadowing, which in turn reduces competition for light and nutrients.
  • Transcript of "Pruning 101"

    1. 7. Pruning 101 Ann Koenig Missouri Department of Conservation
    2. 8. General Tree Biology <ul><li>Trees grow from branch tips, not base. </li></ul>
    3. 9. General Tree Biology <ul><li>Trees grow from branch tips, not base. </li></ul><ul><li>Branch unions can form callus tissue. </li></ul>
    4. 10. General Tree Biology <ul><li>Trees grow from branch tips, not base. </li></ul><ul><li>Branch unions can form callus tissue. </li></ul><ul><li>Wounds cover, not heal. </li></ul>
    5. 11. General Tree Biology <ul><li>A tree can only </li></ul><ul><li>“ seal” </li></ul><ul><li>itself through </li></ul><ul><li>a process called </li></ul><ul><li>compartmentalization. </li></ul>
    6. 13. General Tree Biology <ul><li>Trees grow from branch tips, not base. </li></ul><ul><li>Branch unions can form callus tissue. </li></ul><ul><li>Wounds cover, not heal. </li></ul><ul><li>Right tree in the right place may need little to no pruning once established. </li></ul>
    7. 19. Pruning New Trees <ul><li>Do not remove more than 20% of branches at this time. </li></ul><ul><li>Remove broken, crossing or rubbing branches. </li></ul>
    8. 20. Pruning Young Trees <ul><li>One or two years after planting, start selecting scaffold branches that have good vertical and horizontal spacing. </li></ul>
    9. 21. Pruning Young Trees <ul><li>Wide angles </li></ul><ul><li>vertical spacing </li></ul><ul><li>Radial branch distribution </li></ul>
    10. 22. Pruning Young Trees <ul><li>Remove branches when young so wounds are small and growth goes into future limbs. Remove: </li></ul><ul><li>Dead, dying limbs </li></ul><ul><li>Sprouts near base </li></ul><ul><li>Crossed branches, branches going through </li></ul><ul><li>center </li></ul><ul><li>Low branches </li></ul><ul><li>Multiple leaders </li></ul><ul><li>Narrow unions with included bark </li></ul>
    11. 23. Inside View of Included Bark <ul><li>Included bark is shown by the pencil. </li></ul><ul><li>Branches with included bark should be removed while the tree is young. </li></ul>
    12. 24. Narrow unions
    13. 25. Included bark between the branch/trunk union.  Note the seam or &quot;crack&quot; between the two. 
    14. 26. Cut open view showing lack of connective tissue at the top of the branch union.
    15. 28. Pruning Tools <ul><li>Pruning tools are either pruner or saw based </li></ul>
    16. 29. Pruners
    17. 30. When to Prune <ul><li>Generally in dormant season </li></ul><ul><li>Birch and Maple may “bleed” but not harmful. Avoid by pruning in early winter or late spring. </li></ul><ul><li>Spring flowering trees, prune right after flower. </li></ul>
    18. 31. Where to make the cut
    19. 34. Large limb removal <ul><li>The 3 cut method </li></ul>
    20. 35. The undercut did its job!
    21. 36. <ul><li>Not under cut used. Leaves large pruning wound. </li></ul>
    22. 37. Rule of Thirds <ul><li>When pruning a branch, try to bring it back to a limb at least 1/3 the diameter of the limb being removed. </li></ul>
    23. 40. Top 10 Worst Pruning Practices <ul><li>Neglecting a young tree </li></ul><ul><li>Dressing wounds </li></ul><ul><li>Filling cavities </li></ul><ul><li>Flush cutting </li></ul><ul><li>Leaving stubs </li></ul><ul><li>Ignoring included bark </li></ul><ul><li>Using wrong tools </li></ul><ul><li>for the job </li></ul><ul><li>Over pruning </li></ul><ul><li>Not being safe </li></ul>
    24. 41. #1 Worst Pruning Practice Topping!!!
    25. 43. Why not top trees? <ul><li>Injures tree leading to decay </li></ul><ul><li>Resulting shoots are weakly attached and easily break </li></ul><ul><li>Wastes money </li></ul><ul><li>Creates hazard </li></ul>
    26. 48. Test Time
    27. 58. Ann Koenig Urban Forester Missouri Department of Conservation 1907 Hillcrest Drive Columbia, MO 65201 (573) 884-6861 [email_address]
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