Termite Baits
Termite
baits, also known as bait stations, are capsules that contain paper, cardboard or other acceptable termite food
laced with a slow-acting poison that is lethal to termites. Baits
are sometimes called “termite traps,” although they do not actually trap termites.
Baiting is
an alternative to older “barrier” treatments in which large amounts of pesticide are applied to the soil
underneath and surrounding a building in order to block all potential routes of termite entry. Termite baits employ small amounts of slow-acting poison that is gradually
spread among worker termites when they return to the nest to feed one another.
Some baits
are installed below ground and others are positioned above ground in the vicinity of known termite mud tubes and
feeding sites. Belowground stations typically contain untreated
wood (as the poison rapidly decomposes underground) until termite activity is detected inside the stations, at
which time the exterminator will deploy poisoned material. Poisons
are designed to eliminate the colony either through sterilization or by stunting their growth.
Advantages of Termite Baiting
•Baiting
requires fewer disruptions to the building's occupants than does conventional barrier treatment, which often
requires rolling back carpets, noisy drilling, concrete dust, removal of furnishings, and other
disturbances.
•Baiting
is environmentally friendly compared with soil treatment, which may require the use of hundreds of gallons of
pesticide. Baiting will not endanger drinking water in houses that
make use of wells and cisterns.
•Positioning of baits is not complicated
by inaccessible crawlspaces or other areas that are difficult to treat with liquid barrier methods.
•Baiting
can be used as a preventive measure in the early detection of termites, as the method requires extensive
monitoring.
•Underground bait stations are
unreachable by children and animals.
Disadvantages of Termite Baiting
•Baiting
can take a long time -- even months -- to be effective. Termites
must detect underground bait stations randomly as they wander through the soil because the insects cannot see or
smell the bait. Whether the bait stations are found is completely
up to the termites, unlike the more controllable barrier method.
Some degree of termite damage may occur before the slow-acting bait is discovered and takes
effect.
•Baiting
is often more expensive than liquid barrier treatment because bait stations require ongoing inspection,
monitoring and re-baiting. The exterminator will bill hourly, which
can cost thousands of dollars over the course of many repeat visits.
•The
success rate of baiting depends on the season, as termites may not find the bait stations during off-peak
foraging periods. Baiting is best performed during warmer
months.
•Baiting
leaves no residual barrier to future infestations. The bait must be
attractive enough to entice termites to return, even in the presence of competing stumps, tree roots, woodpiles,
and structural wood.
•Termites
might be warded away from bait stations if dead termites begin to accumulate in the vicinity, a consequence of
an overly powerful poison.
Only
licensed pest control operators should perform baiting, as they provide professional monitoring and strategic
placement, although homeowners may purchase the baits from retailers and attempt extermination
themselves. These bait systems are typically small and cannot be
opened for monitoring.
Inspectors
may want to document the presence of termite baits, as they indicate the past or present activity
wood-destroying organisms. This information may be of interest to
potential homebuyers. Inspectors should not attempt to open or
otherwise disturb termite baits.
In
summary, termite baits are new, non-invasive devices used to eliminate termites from homes. Inspectors should be aware of their presence so that they know that measures
are possibly being taken to treat an infestation, and so that the traps are not inadvertently disturbed during
an inspection.
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