Drain Flies, House Flies, and Fungus Gnats. PArt of the 2017 All Bugs Good and Bad Webinar Series. In this webinar, Elizabeth "Wizzie" Brown, IPM Program Specialist, Texas A and M Agrilife Extension will discuss practical tips that homeowners can use to identify and help control the problem pest. The webinars are brought to you by the following eXtension Communities of Practice: Ant Pests, and Urban IPM; and by the Alabama Cooperative Extension System, the Texas A&M AgriLife Extension Service, Clemson Cooperative Extension and University of Georgia Extension.