As an exterminator for over 20 years, I am telling you that Riddex is a scam. I found roaches living in those things! If you need to get rid of roaches, a light dusting with Boric acid and baiting with gels now sold at most stores and sticky glue boards will be alot more effective.Boric acid is the safest product out there. You don't have to flood the area, but just give it a light treatment, and place your glue traps under the sinks. Roaches like areas of moisture such as kitchens and bathrooms. If you have mice, the best thing to use... read full review »