|
|
|
Summary of Professional Termite
Control Methods
|
INITIAL
INSPECTION
& REPORT requires a complete thorough inspection of the
buildings and surrounds, and a detailed written report on areas inspected,
evidence found of termite activity, high risk termite entry areas
inaccessible to inspection and termite control options and limitations
thereto. Recommended as essential.
|
CHEMICAL
SOIL TREATMENT around the perimeter and sub-floor
of a building to eradicate termites attempting to gain entry
into the building through a treated soil area. On the grounds
of safety and effectiveness Phantom termiticide is recommended
for this purpose.
|
TERMITE BAITING
and potential TERMITE COLONY ELIMINATION involves
the installation and monitoring of termite bait stations, such
as Exterra and
Sentricon systems. This method relies heavily on the termites "finding"
and consuming sufficient bait. Recommended in some circumstances.
|
BUILDING
MODIFICATIONS and MAINTENANCE including some termite
risk reduction measures the homeowner carry out, such as, improving
sub-floor ventilation, removal of timber in contact with the
soil, opening and clearing important inspection access areas,
etc.
|
| Regular
FOLLOW-UP INSPECTIONS are essential and should be
carried out at least every 3 to 6 months where signs of termite
activity has been located in the vicinity of susceptible buildings
or timber structures. |
|
Initial Inspection of Buildings & Surrounds
|
FIRSTLY, it is essential for the termite controller to complete
a thorough inspection of the buildings and surrounds. The property
owner should be supplied with a written inspection report and detailed
specifications for an integrated termite control program. It is essential
that the inspection and report be received before any protective
measures are commenced.
A professional termite inspection and report, including a termite
control protection advice costs varies depending on the size of
dwelling, style of construction and ease
of inspection access.
|
|
A professional termite inspection and report could
save you thousands of dollars.
Specific areas inspected should include accessible timbers within
the crawl space in the sub-floor, roof void, interior, exterior,
garden lanscaping, fences, other timber structures and trees in the
locality. |
CONSUMER NOTE: Most home-owners are unaware that their general
home insurance policy does NOT cover termite damage to structural
timbers. However, appropriate professional indemnity insurance is
available to professional pest controllers to cover termite damage
to structural timbers in a building caused by subterranean termites
gaining entry into the building through an abutting chemical soil
treated area.
If there are termites in the building, at the time of chemical soil
treatment, they cannot safely return to their central colony nest
through the chemically treated soil. Termites are compelled to return
every few days to their central colony nest in the ground to obtain
moisture essential for their survival and to feed and groom the nymphs
(young termites), the king, queen and other termites.
The installation of a chemical soil barrier requires expert knowledge
and specialised equipment to form a complete and continuous barrier
to protect the building from a termite entry and infestation - as
illustrated below: |
|
|
|
|
Trench and treat soil around external concrete slab edge - a common
termite entry point
|
Trench and treat soil around walls and piers in the sub-floor area
|
Use rod injection to treat soil along and around the external perimeter
area of the building
|
|
|
|
|
Drill concrete floor along all expansion joints and cracks, and treat
soil thereunder
|
Drill concrete floor around pipes and treat soil thereunder
|
Drill concrete patio areas and treat soil area therein - a high risk
termite nest location
|
Special care and equipment can be used to detect a subsidiary termite
nest contained within the building structure.
Subterranean termites may build such a nest in a roof or wall cavity
where moisture is regularly supplied, say from a leaking shower
recess, broken roof tiles, faulty guttering or plumbing. |
|
PESTICIDE SAFETY
ISSUES - Soil Treatment Termiticides
|
| There are several types of termite control chemicals registered
by the relevant State and/or Federal Government Authority for use
in termite control as a soil treatment chemical. |
WARNING: Several outdated products are solvent based termite control
pesticides which may cause health problems to asthmatics during the
drying process.
 |
Phantom
is the safer effective alternative. It has virtually no smell
and of ultra-low hazard to humans, dogs, cats and other mammals.
Phantom is manufactured by BASF. |
|
Phantom does NOT have an obnoxious odour or emit airborne residues
or fumes. It is registered as a low hazard insecticide with a CAUTION
notation on the registered label.
Phantom represents modern technology... it is NOT organo-chlorine
or organo-phosphate pesticide. |
Some alternative termiticides have a strong repellency action
to deter foraging termites. Whereas Termidor and Premise are non-repellant
to the termites. Termites can enter the treated zone without detecting
the Phantom chemical. The repellant nature of other products mean
the termites can detect the chemical and will move along the treated
soil areas, actively seeking a gap to gain entry into the building.
Premise Foam has been used against termites in NY state with excellent
results for long term termite control. We are not aware of any significant
problems with its use.
Premise Foam will act to kill termites in the treated areas of the
building. With Premise Foam, termites that forage in the treated
areas, will become disorientated, stop feeding, and are fatally diseased
by natural fungi and micro-organismsl. |
|
Termite Baits & Baiting
Systems
|
The Sentricon termite monitoring and baiting system was developed
by Dow AgroSciences, USA. The Sentricon bait is an insect growth
regulator, which is designed to be spread throughout the colony by
the worker termites.
An insect growth regulator affects termites by stopping the moulting
process required for the termites to grow. As the worker termites
die off, the termite colony declines to the point where it can no
longer sustain itself, ultimately leading to it's collapse and elimination.
The Exterra termite monitoring and baiting system is owned by Ensystex,
USA. The Exterra termite bait is also an insect growth regulator.
Both Sentricon and Exterra systems have their own plastic bait stations
which must be used with their product. These bait stations can be
placed in the ground and checked regularly.
Termite colony elimination in favourable circumstances may take several
weeks to a few months. However, in some cases, termite colony elimination
is unsuccessful or may take years, depending on the circumstances.
Where a large number of termites find and consume the bait, then
colony elimination is virtually assured within a few months. This
is where the experience and skill of the termite controller is paramount
to decide if and where a baiting program is implemented and properly
monitored.
Both the Sentricon and Exterra termite
baits are designed to be slow acting, non-repellant and therefore
spread to other termites in the colony before the colony can detect
where the deadly effect is coming from.
Termites have acute survival instincts. The location of a toxic food
source if detected, will be abandoned. Too much disturbance of the
foraging termites (workers and soldiers) in a particular location,
will alert the termite colony to abandon the area. The termites appear
to be gone, but may in fact be entering the building in other areas.
Your home is a much bigger bait station.
Both the Exterra and Sentricon termite baiting systems are subject
to regular inspection and monitoring by the termite controller. The
larger the number of termites that consume the bait, the quicker
and more certain is the termite colony elimination process.
It is usual to reinspect the bait stations and the buildings and
surrounds every month to reposition, reapply or replenish the bait,
if necessary. This process is labour intensive so that the long term
cost of the monitoring / baiting system may accumulate out of hand
before the chance of success or otherwise, is realised.
|
 |
Ring the Experts: successful termite protection
of a building using a baiting program often requires expert skill
and judgment, based upon years of field-work experience in termite
control in a wide variety of circumstances.
One critical aspect is the bait stations should to installed in areas
where termites are more likely to be foraging. The termites must "find" the
stations to have any chance of success. |
| CONSUMER NOTICE: Be wary of any advertising or promise that a timber
replacement warranty applies as regards subsequent termite damage
to a building using a termite colony elimination system. For example,
some pest control companies promote a $100,000 Timber Replacement
Warranty as regards to the use of a particular "termite colony
elimination"
system - but be careful to read the Contract carefully! Does this
Contract stipulate in the fine print that the so called "warranty" may
(or may not) apply at some future point in time to be decided
by the company? |
With a termite baiting program, there can be no absolute guarantee
of long-term protection of nearby buildings. There may be other termite
nests nearby the building that do not find the bait stations. Your
home is a much bigger bait station. Other termite nests may exist
in trees, under concrete on-ground flooring and in-fill patios of
neighboring properties.
The Sentricon baits are placed in their in-ground bait stations after
removal of the termite infested timber therein. This may involve
sufficient disruption of the termites such that they avoid the in-ground
Sentricon bait station, entirely.
This serious short-coming is overcome by the patented Exterra Termite
Stations where the timber is aligned around the cylinder such that
the bait can be inserted without such disturbance of the termites
present.
RECOMMENDATION: Exterra or
Sentricon be used where a complete chemical soil barrier treatment
using Termidor or Premise is
not practicable or desired, and where a several thousand termites
are likely to eat the bait.
A termite monitoring and baiting program can be integrated with a
range of methods including (1) drilling susceptible trees and eradication
of any termite nest located therein, and (2) in conjunction with
a follow up chemical soil treatment using Termidor or Premise. |
|
Building
Modifications & Maintenance
|
Rapid termite colony development and building infestation is usually
associated with a readily available timber food and moisture source
nearby the central nest. In addition, buildings are often constructed
in a way that allow termites to gain undetectable entry from the
soil to the structural timbers of the building. Listed below are
some useful recommendations for the home owner to carry out in order
to reduce the risk of termite activity inside a building.
Moisture exclusion from inside the wall cavities, around the base
of the building and sub-floor area (if any). Water run-off can be
excluded from a sub-floor area by the installation of ag-drains.
Make sure there is adequate cross flow ventilation in the sub-floor
area. In addition, a qualified plumber should be engaged to ensure
there is no water leakage from plumbing pipes in the bathroom, the
shower recess, kitchen, down pipes, guttering and air conditioning
unit overflow. Look for signs of dampness in the wall cavities, broken
roof tiles, faulty guttering and the like. Please note: high humidity,
dampness or moisture accumulating in a wall cavity is of high risk
to encouraging large scale termite activity inside the building.
Removal of any timber in contact with the soil. Timbers should be
stored above ground to allow full inspection of subterranean termite
activity (coming from the soil thereunder). Any landscaping using
timber chip mulch and railway sleepers should definitely be removed,
as they provide ready food source to assist in rapid termite colony
development.
Ensure inspection access is unimpeded, particularly in sub-floor
areas (suspended floors) in order to look for evidence of termite
activity. If your property is on a concrete slab on ground flooring,
make sure you can inspect the entire external slab edge for evidence
of termite mud-shelter tubes. Do NOT allow this area to be covered
by pavers, landscaping, planter pots, etc, as termites often gain
entry into the walls of a building via this locality, particularly
through external weep holes and minute (2 mm) gaps in the mortar
in brick-work.
If you find live termites or termite damaged timbers DO NOT disturb
the area. DO NOT use spray can or insecticides on the termites. If
sufficiently disturbed, the termites are likely to move elsewhere,
and may not be rediscovered until further obvious damage has been
done. The termite controller can introduce Intrigue termite dust
or Exterra termite bait directly to the live termites present in
an attempt to eliminate the entire termite colony - as discussed
in detail above. |
|
Regular Follow-up
Inspections & Monitoring
|
CONSUMER NOTE: the installation of a chemical soil barrier does not
negate the need for regular competent inspections - at least 3 to
6 months where the termite risk is high.
We usually recommend 3 or 6 monthly inspections be carried for the
first 24 months following a chemical soil treatment. Monitoring of "stand-alone"
baiting systems should be carried out every 4 to 6 weeks.
|
| A Word of Warning: the correct identification
of a destructive termite species, inspection of a building for tell-tale
signs, analysis of your circumstances and the design and implementation
of an effective program for the protection of a building from termite
infestations, requires expert skill and judgement based upon professional
training and extensive field-work experience in termite control in
a wide variety of circumstances. |
|
Learn about other common household
pests
|
|
|