The key to successful pest control in healthcare facilities is teamwork," said [Costello], ASHES. "It's a joint effort. It requires cooperation and commitment from everyone, not just environmental services. Cooperation is needed from every department head and from all employees. All need to be alert to issues such as to how often trash gets picked up, how well trash is maintained, and where boxes delivered for food service are located. Rarely will there be a big problem in and of itself.