I've only partially kept track of the replies, so I apologize if I
repeat other suggestions.

* Keep in mind that fox and gray squirrels are usually (although not
always) classified as game animals. The tassel-eared squirrel is
normally a protected species. You are well advised to check with local
or state authorities to determine the legal status of your particular
squirrels.

* Exclusion - prevent them from climbing trees and power poles by
encircling them with 2-foot wide collar of metal, 6-feet off the ground.
These can be fitted with with wires and springs, allowing the collars to
expand with tree growth. Prevent them from traveling on wires by
installing 2-foot lengths of 2 or 3-inch diameter plastic pipe. The pipe
will rotate and prevent travel. Close openings to attics -- making sure
not to trap squirrels inside. Openings should be closed with heavy 1/2
or 1/4 inch mesh.

* Cultural modifications - trim tree limbs and trees 6 to 8-feet away
from buildings. Attract the squirrils to other locations using food
stations. Use hard food to satisfy the squirrels need to reduce incisor
growth.

* Repellents - while naphthalene has been used (and I saw it suggested
in at least one previous reply), this is not recommended. Remember that
both naphthalene and paradicholorobenzene (PDB) may damage museum
collections. In addition, these materials are inappropriate for human
exposure. Naphthalene, for example, is a phenol compound with medium
dermal toxicity and is toxic when inhaled. It is linked to cataracts and
corneal damage, causes liver and kidney damage, and is transported
across the placenta. Ro-pel is one of several taste repellents, as is
capsaicin. Polybutenes are sticky materials that can be applied to
buildings to discourage climbing, although they have a short life span
and are very difficult to clean off. They should not be used on historic
properties.

* Toxicants and fumigants - there are none registered for use.

* Trapping - mentioned several times in previous replies, my first
warning is that since in many states squirrels are considered game
animals, trapping permits may be required from either your state
wildlife agency or municipal animal control office. Live traps sound
great, but as another individual has noted, trapped animals must be
humanely destroyed -- they cannot be released into another habitat. Once
trapped, they become trap shy and future trapping will be close to
impossible. Moreover, in a new environment they will likely sicken and
starve. Consequently, if you trap, you must be prepared to put the
animal down in a humane manner. If you need additional information on
either the mechanics of trapping or of putting a squirril down, contact
me off list.

Best,
Mike Trinkley

--
Michael Trinkley, Ph.D.
Director
Chicora Foundation, Inc.
PO Box 8664
Columbia, SC 29202-8664
803/787-6910
www.chicora.org
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