As the temperature rises, the roach problem inside worsens because they are coming in looking for cool and moisture. We put stations at each corner of the house and treat the drip line of the house, shrubbery, door jambs, windows and the entire base perimeter with granular chemicals. The roaches then pass through and take the granules back to their nests. Until fairly recently, roaches were the number one pest problem on a national basis. Due to changes like less paper products from the grocery store and more plastic sacks, that problem has abated enough to where the number one problem is now ants.
Fire ants are the most visibly evident, the ones that build endless mounds in our yards and bite.
They move and multiply under ground. We treat the whole yard which takes care of the problem for three to six months. Baiting with granular and liquid treatments outside is the best way to kill and deter the fire ants. This should be done twice a year for real effectiveness. These ants move along electrical wires inside walls and may be nesting completely on the other side of the house from where you are seeing them.