Termidor SC is not labeled to eradicate house flies as it should be applied in the soil for a termite treatment and only on the exterior surface (1ft up and 1 ft out) directly up against the foundation for insects that crawl on top of the soil. For more information on treating house flies, please read the article below. Please let us know if you need anything else.
Termidor SC is applied as a spray once every six weeks topically up against the foundation for insects that crawl on top of the soil, such as ants. If you are trying to treat for subterranean termites, you will want to dig a trench up against the structure, and if there is concrete up against the foundation you will need to drill to apply the product. Please take a few moments to review our article on How to Get Rid of Subterranean Termites for specific application instructions.
You should perform a liquid termite treatment in the ground to get the termites where they are entering your house. To perform a treatment just as a professional company would do, please read our How To Do A Termite Treatment Article which explains exactly how you should treat your home properly. Doing a treatment like what is described in the article will not only take care of existing termites that you have, but it will also protect and prevent future termites from entering for about 7 years.
Here is a a link to the article: http://www.domyownpestcontrol.com/termite-treatment-c-3_352.htmlWhen treating a block foundation with Termidor SC, you should drill a hole in each void so there would be 2 holes per block. The holes should be no more than 18 inches high. Usually, you want to drill on the second row of blocks high from the ground. In addition to drilling the holes, you should also trench and treat the outside foundation wall and the inside foundation wall if you have a crawl space. After drilling the holes, you are supposed to apply 2 gallons of solution per 10 lineal feet into the blocks. For filling trenches and drill holes going vertically into slabs, you should apply 4 gallons per 10 lineal feet. Please let us know if you have any further questions. Click on the link below for more information on treating termites.
Termidor SC would only be applied inside if using to spot treat an active infestation per the product label. It cannot be used for prevention inside.