My parents had a pretty bad scorpion problem and were using Terminix. They could never get rid of the scorps. They stopped using Terminix after they started having billing issues with them and then came the cockroaches! Ick! A friend recommended they use Green Mango. The roaches and scorps disappeared. Every no and again they'll get a couple roaches outside but they'll call Green Mango to come out and have them spray again. There have been no scorp sightings! :oD The parents are very happy with Green Mango and have recommended them to several people. For any scheduling/callback issues, the parents would need to comment...