I have, over the last 2 months been having a problem with small flies in the house. I find them dead in the window sills and at times find them flying thru' the air or crawling on the counter. They are some what like a fruit fly but not as fast and easier to catch and kill. Could this fly be coming from my plants? If so what is causing the problem? I recently bought a prayer plant and potting soil and was wondering if the pests could have come from one of these sources. Would appreciate all the info and help I can get. April