Download Structural problems in different trees

Structural problems in different trees
Different tree species react differently to stress caused by wind, snow or ice. Some tree species are more well
known for breaking in storms than other trees. Trees grow differently and break (fail) in different ways depending
upon the type of tree species and how it grows. Pruning trees properly, especially while they are young can allow
them to grow with a strong healthy structure, which can help avoid failure problems.
Ash trees: Generally a strong wooded species. Most vulnerable at areas where multiple trunks originate at narrow
angles. Branches tend to break when there is excessive weight at the ends. When ash trees become stressed, dead
branches develop and are prone to break. Trees are prone to blowing over in wind storms if soil becomes saturated
after heavy rainfall.
Maples- silver, Norway, sugar, box elder: Branches break due to heavy branch ends and weak wood. Stems and
branches break due to susceptibility to decay. Root failure happens due to decay and because sometimes the
canopies of the trees become so large that they can not be supported by the root systems.
Linden: Branches and stems fail due to decay, especially in older trees. Branches often fail due to narrow branch
angles which cause cracks. The upright nature of these trees makes these cracks more common. Root and trunk de
cay can also lead to failures.
Juniper: Branches break due to snow and ice accumulation. Soil and root failures occur due to dense canopies with
excessive weight, making the trees more likely to tip over.
Willow: Branch and stem failure due to decay. Branches fail because of weak wood and heavy branch ends. Soil
failures are common due to shallow root systems and heavy crowns. Massive weight associated with large trunks
and limbs can be a major problem.
Pine: The horizontal growth habit of the branches of pine trees makes them more susceptible to breakage due to
snow and ice accumulation. Pines growing on the edges of forest stands are more prone to wind damage.
Oaks: Root decay is common in old trees, causing wind damage. Dead branches in old trees are caused by insects
such as the two lined chestnut borer.
Winter snow, ice, and wind can be very tough on trees. It is important to examine your trees for structural defects
that could lead to problems. A little foresight and preventative pruning can help avoid many failures. Look for the
defects listed above. Contact Hoppe Tree Service for an evaluation of your trees this fall or winter.