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Tree Pruning-Preparing for Hurricanes & Cleaning Afterwards - Vincent Mannino, Texas AgriLife Extension Service
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Tree Pruning-Preparing for Hurricanes & Cleaning Afterwards - Vincent Mannino, Texas AgriLife Extension Service



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  • 1. Repairing Storm Damaged Trees By: Edward F. Gilman and Traci Jo Partin, Univ. of Florida Edited by Vincent J. Mannino, County Extension Director Fort Bend County, Texas
  • 2. WHAT IF ??
  • 3.  
  • 4. Signs of a Hazardous Tree
    • Dead limbs
    • Thinning crown and slowing vigor
    • Forked trunks and sharp angles
    • Fungus growth on/at the base of the trunk or large limbs
    • Wounds or cracks
    • Cankers
    • Sudden leaning
    • Construction activity nearby in the last five to 10 years
    • History of failure such as previous limb drop
    • Adjacent trees removed -- has there been clearing of other trees nearby
    • Signs and degree of decay
  • 5. Signs of a Hazardous Tree
    • Determining and detecting the degree of decay requires
      • Visual inspection or
      • Utilize the services of a professional arborist with a resistograph
      • http://www.asca-consultants.org
  • 6. Signs of a Hazardous Tree
    • Problem species
      • older laurel and water oaks
      • All pines except Japanese Black
      • Chinaberry
      • sweet gum
      • sycamore
      • Chinese tallow
      • mimosa
      • Southern red cedar
      • Chinese elm trees.
      • Maples
      • ash
  • 7. Restoring Trees After a Hurricane
  • 8. How long does restoration take?
    • A tree requires 2-5 years or more to restore depending on various factors:
    • Size of tree - smaller trees take less time to recover
    • Age - mature trees will require more time and care
    • Species - pest resistant trees will recover better
    • Amount of damage - more damage = more time
    • Speed of growth - faster growth = faster heal!
  • 9. Restoration
    • Before the hurricane have the facts and tools ready
    • 2. After the hurricane: Decide if restoration is necessary and develop a response plan
    • 3. And, for the next few years: Implement a multi-year corrective pruning and pest control program
  • 10. + fuel & extra chain + file
  • 11. Assess damage first before deciding to restore
    • __Other than the storm damage, is the tree basically healthy and vigorous?
    • __Are major limbs broken?
    • __Has the leader been lost?
    • __Is at least 50 percent of the tree's crown (branches and leaves) still intact?
    • __How large are the wounds?
  • 12. Assess damage first before deciding to restore
    • __ Are there remaining branches that can form a new branch structure?
    • __Is the tree of a desirable species for its location?
    • __Is the tree leaning due to wind?
    • __How long will it take?
    • __Is the tree worth saving?
    • __Can this be done safely?
    • __What will it cost?
    • __Can this be done without help ?
  • 13. Worth saving ?
  • 14. Which is worth saving?
  • 15. Response Plan
    • After the hurricane
    • Step 1: Remove hazards
    • Step 2: Stake leaning trees where/if possible
    • Step 3: Clean canopies of damaged trees
  • 16. After the hurricane: Step 1
    • Remove all hazards:
    • Fallen tree or branches near power lines
    • Broken, cracked , and hanging limbs located near property
    • - Large, fallen trees blocking traffic areas
    DANGEROUS! Only experienced workers should handle these situations!
  • 17. Immediately following storm: Step 2
    • Stake leaning trees when possible:
    • Small trees (approximately 4 inches trunk diameter or less)
    • &
    • Recently planted trees
    Do not let the roots dry out! Water and cover with tarp or compost until tree can be re-planted.
  • 18. How to Stand a Tree Up
    • Keep roots moist.
    • Excavate the hole to re-accommodate roots.
    • Cut jagged or torn roots with sharp tools, making clean cuts.
    • Take measures to protect the trunk.
    • Pull tree up and backfill with site soil.
    • Do not replant too deep.
    • Mulch
  • 19. How to Stand a Tree Up
    • 8. Water as if the tree were recently planted. Irrigate 3x a week with 3 gallons/inch trunk diameter. There is no need to fertilize at this time, but a root activator is OK.
    • 9. Stake the tree. Adjust stakes and remove when tree is stable, (2-3 years).
    • 10. When it is time - remove the stakes
    A – poor B – good C – best girdling
  • 20. How to Stand a Tree Up How Big? = How much can you afford?
  • 21. Immediately following storm: Step 3
    • Clean canopies of damaged trees:
    • Remove broken, hanging stems first so that branches do not fall and cause injury.
  • 22. Canopy Cleaning
    • Make clean cuts on stubs, breaks, and tears.
    • Reduce back to lateral branch if one is present.
  • 23. Cutting Larger Limbs The swelling at the base of the branch is called a collar . Presence of a collar indicates a strong attachment.
  • 24. cut
  • 25. Do not top your trees!
    • Topping severely reduces the entire canopy of a tree, cutting large limbs back to stubs.
    • This practice is very harmful to the health of the tree.
    • But, healthy trees can recover! – in time
  • 26. Response Plan
    • Immediately following storm
    • Step 1: Remove potential
    • hazards
    • Step 2: Stake fallen trees
    • where possible
    • Step 3: Clean canopies of damaged trees
    • Before the next visit
    • Allow trees to regenerate energy reserves
    • Develop a tree management program in the community
  • 27. How long?
    • Deciduous and broadleaf evergreen trees :
    • Trees should begin sprouting by spring of the year following the hurricane (April for hardiness zones 9-11).
    • Wait until sprout growth slows before next pruning visit.
    • Use small amount of fertilizer – based on soil tests
  • 28. Sprouts emerging
  • 29. Over time, sprouts develop woody stems and can grow into strong lateral branches … but they need your help!
  • 30. Remove some - Remove 1/3 of the sprouts to allow space for the most vigorous ones to grow. Reduce some - Shorten 1/3 of the sprouts. They will continue to store energy, but will eventually be removed. Leave some - These will develop into the new branches.
  • 31. Remove some Reduce some Leave some Once growth slows a bit…
  • 32. Before After
  • 33. After first restoration pruning
  • 34. Recap - Factors that affect restoration
    • Size of tree Large maturing shade tree vs. small, ornamental tree.
    • Age Estimate by comparing the trunk diameter to the size the species reaches at full maturity.
    • Species Is the species prone to decay? Have poor growth habit?
    • Amount of damage What percentage of the canopy is damaged?
  • 35. Weak vs. Strong Recap
  • 36. Recap - Amount of damage
    • 50% canopy damage
    • ► Come back after two years
    30% canopy damage ► Come back after one year
  • 37. Recap - Amount of damage
    • More than 50% canopy loss: Monitor carefully over two year period and decide whether tree is recovering or declining.
  • 38. Young Trees
  • 39. Storm breaks off top
  • 40. Storm breaks off top
  • 41. Before After
  • 42. 8 months later
  • 43. 8 months later Close-up stake
  • 44. One year after initial damage
  • 45. Palms: Canopy cleaning on palms
    • Remove broken and dead fronds that could fall and hit a target
    • Leave bent green fronds attached to palm until new fronds emerge fully
    • Leave fronds that are yellowing or have brown tips. Use a root-stimulator or root-activator according to label directions.
  • 46. Palm cleaning Leave live fronds Remove dead fronds
  • 47. Leave green, bent fronds
  • 48. Remove broken fronds that are smothering the bud
  • 49.
    • Allow at least 6 months after the storm for palms to put out new growth.
    • Approximately 1 to 2 years before palms appear normal with a full canopy.
  • 50. Pines
    • Pines do not re-sprout when all of the needles are brown, the tree will not recover.
    • Broke pine trunks do not re-generate well.
  • 51. Gone… … with the wind!
  • 52. Beware of price gouging
    • L ess credible tree services will take advantage of storm victims.
    • Good work by qualified professionals is not cheap!
    • Poor work, no matter the price paid, can cost you a great deal.
    • A reasonable price for professional tree work ranges from $75-$125+ per worker per hour.
      • price includes liability and workman’s compensation insurance.
      • price includes bucket trucks and standard equipment.
      • does not include heavier specialty equipment that may be needed such as cranes, loaders, etc., or hardware that may be installed in the tree.
  • 53. Financial recovery - before
    • Be aware that tree losses to your landscape, whether large or small, may be deductible from your taxes. Two steps must be taken to be able to claim this deduction:
      • Document the tree damage/loss with photos/video
      • Contract a certified arborist who has experience appraising trees for an estimated dollar value. http://www.asca-consultants.org
  • 54.
      • Financial recovery - after
      • After a loss occurs consult the services of a tax professional. Even if you don’t have insurance, you may be entitled to some financial relief by taking advantage of a provision of the tax code which allows you to deduct casualty losses from your income tax
      • And, if you do have insurance – proceed with your claim.
  • 55. To learn about preventive pruning…
    • Urban Forest Hurricane Recovery Program:
    • http://treesandhurricanes.ifas.ufl.edu
    • Eden Website’s Disaster Recovery Resources:
    • http://texashelp.tamu.edu/001a-hot-topics/index.php
  • 56. QUESTIONS ??