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Special care and equipment can be employed to detect sub-nests in a building incuding a moisture metre, microwave and infrared cameras - but each have their limitations.
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 compound.
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WARNING: Many outdated products are solvent based termite control pesticides that might cause health issues to asthmatics during the drying process.
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Termidor and Premise do NOT have an obnoxious odour or emit airborne residues or fumes. Both are registered as a minimal hazard insecticide with a CAUTION notation on the registered tag.
Fipronil, the active ingredient in Termidor, has been used in the united states, Australia and other countries, for flea and tick control on millions of cats and dogs. Termidor and Premise represent modern technology.
Some alternative termiticides have a strong repellency action to discourage foraging termites. Whereas Termidor and Premise are non-repellant to the termites.
Termites can enter the treated soil zone without detecting the Termidor or Premise compound.
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The repellant nature of other goods mean the termites can detect the compound and will move along the treated soil regions, actively seeking a gap to gain entry into the building.
Premise has been used as soil treatment barrier against termites for more than eight years in the USA with excellent results for long term termite control. We're not aware of any significant problems during this age.
Premise will behave to kill termites, in the higher concentration treated soil regions abutting the building. With Premise, termites that forage in the lower concentrated treated land regions, will become disorientated, stop feeding, and therefore are fatally diseased by natural fungi and micro-organisms in the soil.
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Both Bayer Premise and BASF Termidor claim their goods will transfer from one affected termite to another... the technology aimed at eradicating the queen termite and the entire colony - refer to the animated illustration below:
Termites tunneling in the Premise treated soil area abutting the building (of top concentration - near the point of application) are killed outright.
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Termites tunneling in the outer parts of a Premise treated soil area (of low concentration) Continued will not detect the Premise which adheres to their bodies and has a delayed lethal effect of many days - enough time to be transferred back to the central colony nest.
After 250 million years of living underground, subterranean termites have evolved with a very thin waxy skin (called an exoskeleton) that readily absorbs moisture.
Premise adheres to the termite exoskeleton and is readily adsorbed through the exoskeleton and into the termite's body to trap and kill the affected termite within a couple of days.
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The termites spread the Premise to other termites during regular physical contact, particularly when working together in close proximity, grooming and feeding the remainder of the colony, a normal function of their everyday life.
Termites carry away or cannibalize other dead termites, further spreading the deadly effect of the Premise chemical across the colony.
The Sentricon termite monitoring and baiting system was developed by Dow AgroSciences, USA. The Sentricon bait is an insect growth regulator, which can be designed to be spread throughout the colony from the worker termites.
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An insect growth regulator impacts termites by stopping the moulting process required for the termites to develop. Since the employee termites die off, the termite colony declines to the point at which it can no longer sustain itself, ultimately leading to it is collapse and elimination.
The Exterra termite monitoring and baiting process 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 might take several months to a couple of months. termite inspection in adelaide However, in some instances, termite colony elimination is unsuccessful or might take decades, depending on the circumstances. Where a large number of termites find and connsume the bait, then colony elimination is almost assured within a couple of months.
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Both of the Sentricon and Exterra termite baits are designed to be slow acting, non-repellant and consequently spread to other termites in the colony prior to the colony can discover where the mortal effect is coming from.
Termites have acute survival instincts. The location of a toxic food supply if detected, will be abandoned. An excessive amount of disturbance of the foraging termites (workers and soldiers) in a particular location, will alert the termite colony to abandon the area. The termites seem to be gone, but might in reality be entering the building in other areas.