Tuesday, June 24, 2014
To prevent ants from returning you need to try to find out what they've been eating that makes the dirt such a convenient home. In my office's case it seems to be crumbs left over from having food in the conference room a little too often. Once the food source is removed all you have left to do is a little preventative spraying and you should be fine. If they return then something else is wrong. Maybe the floor under or over you is providing plenty of food for everyone and the problem you're having may just be run over from theirs. In that case you would need to discuss this with your neighbors.