Delbert Johnson Doctor of Stumpology How To Minimize Storm Damage To Trees Storm damage to trees is caused by heavy, wet snow, freezing rain, lightning, or high winds. All of these put tremendous mechanical stresses on leaves, branches, trunks, and root systems of trees on your property. Potential hazards to your safety, your property, and your trees that are associated with storms can be reduced through proper tree maintenance. Proper pruning, cabling and bracing, a lightning protection system, proper tree selection, and cavity filling are all methods used by arborists to improve the chances of your trees to survive these storms. Result of typical storm damage. Proper Pruning: Thinning the tree canopy allows wind to blow through the crown, instead of against it as though it were a sail. Pruned trees offer less resistance to high winds and are less likely to suffer breakage or to blow down. The removal of potentially hazardous dead or weak branches is an important safety practice. Cabling and Bracing: Strong metal cables and rods are used to relieve the strain that causes structurally weak trees to split and break in high winds, ice, and Tree needing pruning. Following proper pruning. snow. Whether used in prevention or repair of structural damage to trees, cabling and bracing provides a support system to reduce the potential for fork splitting and branch breakage. Cabling and bracing your trees, along with thinning the crown, will reduce the chances of costly damage. Lightning Protection: Lightning strikes trees because they provide better conduction of the electrical charge than the surrounding air. When a tree is hit by lightning it may be severely blown apart or may only produce a spiraling dead area on the trunk. The installation of a lightning protection system in your valuable trees will prevent this destruction by harmlessly conducting the electrical charge to the ground and bypassing the tree itself. Tree Selection: Certain tree species characteristically have weak wood and should not be considered for landscape situations. Although every tree has its place, quality landscapes should generally avoid weak-wooded trees like silver maple, Siberian elm, willows, catalpas, and poplars. Cavity Filling: An open cavity in a tree's trunk is a weak point in its structural support system. Think of such a tree as a tube with a hole in its wall. This kind of tube can't support as much weight as an intact tube. A cavity filling does not provide structural support, but rather a flat surface for callus tissue to grow over. Eventually, the continuity of the tree trunk is re-established and the trunk is better able to support the weight of its canopy. Fertilization helps promote the callusing process. A tree with strong, healthy wood is more likely to survive a destructive storm.
Pages to are hidden for
"Tree Storm Damage"Please download to view full document