The F3Plus Termite Powder is best used for indoor termite treatment.
Resist the urge to kill any termites you see in your house, especially when you have identified any of their tunnels. Instead, make a small hole and very lightly apply some termite powder, almost just like dust, in the hole.
When the termites walk or come in contact with the powder, they will pass it on to each other with their antennaes until the powder reaches the colony, especially the queen.
Give the powder some time to take effect so that it reaches the colony, since the only way to effectively control a termite problem is to kill the queen.
For prevention, you may apply the powder in cracks & crevices. Examples are baseboards, door jambs, and ceilings (kisame).