Subterranean termites, the most common kind, live in the soil. There are distinct castes within each colony-
Forage for food and care for other members of the colony. It is the workers , along with newly-
Soldier termites protect the colony from attack by invaders such as ants. In its final growth stage, the soldier termites acquires a long armored head and large strong jaws.
Each colony has one queen or more, whose mission is to lay eggs. These develop into new colony members.
There is only one primary queen , but when she dies, secondary queens are often produced.
Once a year new members of the winged reproductive caste develops, A single colony may produce several hundreds of these.
When environmental conditions are ideal, these new Reproductive members leave the colony in a swarm to seek mates and start new colonies. After flying a short distance, the swarm fall to the ground and break off their wings, locate mates and then seek a small space beneath a rock or wood in direct contact with the soil to begin a new colony.
This standard gives recommendation for the chemical treatment of soil for the protection of buildings form attack by subterranean termites.
It includes reference to the chemical to be used, lay down the rate of application for usage, and outlines procedures to be followed while the building is under construction or after construction.
For the purpose of this standard, the following definitions shall be applied. Soil treatment-
Essential Requirements for Barrier and Method of Application:
Condition of forming-
EVIDENCE OF TERMITES INFESTATION:
Although some will cross the grain, these galleries can be distinguished from similar damage caused by other wood infestation insects because they usually contain soil particles instead of sawdust.
When termites cross concrete and similar surfaces to reach wood, they construct these tubes as a shelter.
The tubes are made of soil particles cemented together with saliva and excreted fluid waste.
Colonies usually nest in the soil which provides that moisture.
PURPOSE AND SCOPE OF WORK:
This standard gives recommendation for the chemical treatment of soil to stop the existing termites from attacking the building.