I agree that increasing baits wont necessary help. The best approach is an Integrated Pest Management System, which instead of focusing on “killing” the pest, it focuses on controlling the cause of the infestation.I recommend to hire a professional company to do an assessment, why are those pests being attracted to your plant? (e.g.Poor sanitation practices, exposed food, harborage places.., etc) and how are they gaining entrance? (e.g. unsealed doors/windows, drainage, power lines, roof,,,) Bottom line, if you do not find the cause and eliminate it, focusing just on killing won’t be effective.
As an example, on my personal experience, we had a mice issue in a cold room which walls were covered with insulating foam, the floor was concrete and the walls sheet metal, but the junction between floor and walls were not sealed before the foam was sprayed. The mice found their way digging thru the insulation foam and thru the small junction between the floor and walls. We had to remove the insulation at the floor level, install a fine mesh to seal the junction and re-insulate. We also foundthat mice activity were higher due to a long period of hot dry summer, making water and food resources very low in their environment, and our cool, humid and food-loaded cold room irresistible! In this case external food and water baits would also help since the mice will "feed" before gaining entrance.
Edited by Antores, 09 August 2011 - 01:09 PM.