Tunnels of Mud is probably the best and the apparent evidence indicating the termite infestation. These subterranean species choose this path to enter your house and start the infestation and make tunnels in the soil surrounding your house. The material of these tunnels is essentially mud but can also be anything organic which the termites do not like to feed on. The diameter of these tunnels will be the thickness of a pencil and they are likely to be numerous in number.
These generally belong to the winged variety of termites which are large in number. So a huge number of fallen wings are a clear indication of termite infestation as these winged species fly in swarms of huge numbers. The wings will be about half an inch in length and their presence is definitely an indication of the presence of termites nearby. See
This evidence is generally indicative that termites have been present for a long time and is one of the last signs one should notice. Damage has already started and a professional like Pest and Building Inspector in Brisbane needs to be summoned immediately. Wood broken in places and holes in it are indicative of active termites. The wood may need to be cut and opened up to find the termite whereabouts.
Termite Powder Residue
Like the tools used for cutting wood such as an electric saw, termites also leave small portions of wood in powder form as they bite their way through the wood. This powder generally tends to accumulate over a period of time at the base of the wooden items. So watch out for this kind of evidence near doors, windows and furniture which is a sure shot indication of their presence. Leave the powder untouched for pest inspections to investigate on arrival.