Plants around or near the colony are removed (by them) to allow full sun, which can subsequently remove habitat from other encroaching insects. Nests are covered with gravel or loose soil. Activity tends to slow down during the hottest hours of the day (noon to 4pm). They are aggressive defenders of their home, so anything or anyone disturbing or damaging entrances will be subjected to biting and stinging. Their jaws are large and strong, so bites are painful and will leave a mark. Removal of colonies can be done by professional exterminators.