How to Deal with
Wood Bees
Wood bees, sometimes also called carpenter bees can
cause damage to your house and any wooden structure. The damage
is usually not serious and is only cosmetic, however there is a
possibility of serious damage to a structure is wood bees have
been repeatedly using the house as a nesting ground for a long
time.
The problem is usually a nuisance as it is not pleasant to have
unsightly holes, usually around a half-inch wide. Usually wood
bees prefer old, weathered wood but any home with a lot of
wooden fixtures can become a target.
Favorite Woods
There are certain types of wood that wood bees love to use for
their tunnels that eventually become nests. Most eastern species
will be attracted to softwoods, as the wood is easier to tunnel
through. Woods that can become the nesting grounds of wood bees
are cedar, fir, redwood, cypress, and pine. Oak and eucalyptus
are also the favorites of western wood bees.
Almost any structural timber can be the nesting ground of these
bees. Fence posts and lawn furniture is not spared though more
commonly porch ceilings, roof eaves, shingles and railings are a
target. Wood that is painted is usually avoided, as are woods
that have bark. Smooth unfinished woods make the best homes for
these bees.
Hidden Problem
The tunnels of wood bees can be extensive and are hidden. On the
surface all you will see are the entry holes that are a
half-inch wide. Inside the wood however there are tunnels that
can extend ten feet. If a colony of these bees continually uses
the tunnels then the wood can be damaged very badly and require
replacement.
Besides structural damage and the unsightliness of the holes the
bees can also be a nuisance in other ways. The loud buzzing can
be disturbing and the male bees often fly at people that they
perceive are a threat. However the male bee has no stinger and
can do no harm. Killing adult bees is not the answer as the
larvae inside the tunnels will eventually hatch and continue the
problem.
Non-Chemical Approach
The problem of these types of bees can be easily dealt with.
There is no need to use chemicals to get rid of these bees.
Simply plugging the holes to the tunnels is sufficient to get
rid of the problem. You can use caulk and the bees will not
tunnel out. Do this in the evening and wear protective clothing.
You can also fill the tunnels with sealant. As a preventative
measure you can paint wooden surfaces with oil-based paint to
keep bees away.

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