How long does the Termidor application stay in the ground? It kills termites that are present but does it also prevent them or do I need to apply something else? Thanks.
Termidor is still being tested and monitored but when used at label rates, it has proven to be 100% effective 7+ years. In other words, when applied properly at labeled rates, you shouldn’t have to do another application for many years to come. My guess is you can expect to get at least 10 years of residual in areas around the outside foundation perimeter of the home. Inside treatments that are protected could last longer. This would include locations like crawl spaces or under a slab. So to answer your question, a job done properly using Termidor as explained in our TERMITE CONTROL ARTICLE should yield excellent results and prove to be all that is needed to both control the current termite problem as well as protect the structure for several years after the application. If you have further questions or concerns, please give us a call on our toll free at 1-800-877-7290.