You can use Termidor SC for the listed pests twice a year at a rate of 0.8 oz (0.06% finished solution) per gallon of water or up to 4 times a year at a rate of 0.4 oz (0.03% finished solution) per gallon of water, sprayed 1 to 2 feet up the foundation and out on the ground.
Termidor SC is labeled to control pill bugs (a.k.a. woodlice). It can only be used outside around the perimeter of the home. Termidor SC can be sprayed twice a year at a rate of 0.8 oz (0.06% finished solution) per gallon of water or up to 4 times a year at a rate of 0.4 oz (0.03% finished solution) per gallon of water, sprayed 1 foot up the foundation and out on the ground.
Termidor SC starts to work within a few days of termites contacting a treated area but if you suspect an active infestation you will need to search and locate exactly where in the home they are infesting and spot treat the gallery directly. Otherwise there is no real way to know if the Termidor in a trench is working. Trenching is only part of protection and treatment for subterranean termites but if you are dealing with drywood, it would not have any effect on the termites since they would never have gone through the treated soil.
Rodding under the slab of a house from the exterior is a complex and detailed process that we do not recommend attempting yourself. We recommend that you contact a local reputable termite company for an inspection and estimate for something like this. If you have termites in the home, then you can spot treat where there are active termites using a ready-to-use termiticide foam such as Termidor Foam which will transfer throughout the rest of that termite colony.
When treating a block foundation, 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.
How To Perform A Termite Treatment
Termites do not normally attack live, healthy trees so you most likely will not find any products that will work as a ground barrier around the trees. Most people are primarily concerned with protecting the big investment, their home, and Termidor SC would be the product to use for that. It is only labeled to be used adjacent to the structure though. Please take a moment to read over our article on "How to do a Termite Treatment" for complete details.
