What is the best exterior spray that you can use to keep insects off your house for the longest period?
Our most popular product that has the longest residual is called Suspend Polyzone. It lasts longer than most products, about 90 days indoors and outdoors. This is because it has a polymer technology that ensures the active ingredient stays where it’s applied after drying and protects it from weather, irrigation and mechanical interference.
Answer last updated on: 04/10/2010