average cost for mosquito control
1 On average, a mosquito misting system is going to retail for $220 to as much as $800. 2  The price will be determined by the manufacturer, the number of square footage that can be covered by the machine, and the features that the system offers. The Automatic Mosquito Misting System with a Barn Fly Spray System and Deluxe Digital Control costs $685. 2  Another system such as the Automatic Mosquito Misting System with a Barn Fly Spray System and Basic Control Timer costs $530.