Applying the liquid termiticide into the trench that has been dug will allow it to soak into the soil where it will do the most to stop or prevent termite attack. The barrier is not detectable by the termites so they will enter the treated zone where they either die or take the termiticide back to the colony. Our termiticide will not leach out of the soil nor cause any harm to people or pets. Safety to you, us, and the environment is always our first consideration.