Storms

Trees are often wounded by agents other than humans. Many trees in south
Florida were injured severely by hurricane Andrew several years ago. After
storm injury, work must be done first to reduce the risk of fractures that
could cause problems for property and people. Leaving stubs would be
acceptable as long as a scheduled treatment for making final correct cuts is
made. Next, the trees should be pruned for health. This means cutting off
torn roots and removing long, injured branches to avoid sprouting that could
lead to fractures. Trees do not move from place to place, but they move or
sway constantly in place. The swaying can cause injured branches to weaken
to the point of fracture. Small branches falling on people can cause
serious problems. We look most of the time for overwhelming potential
defects while the smaller defects are frequently overlooked.

http://www.treedictionary.com/DICT20...ing/index.html

--
Sincerely,
John A. Keslick, Jr.
Consulting Tree Biologist
http://home.ccil.org/~treeman
and www.treedictionary.com
Beware of so-called tree experts who do not understand tree biology.
Storms, fires, floods, earthquakes, and volcanic eruptions keep reminding us
that we are not the boss.
Some people will buy products they do not understand and not buy books that
will give them understanding.