Mar 04, 2013 - 07:52 PM
Termidor was shown in field tests several years ago to stop subterranean termite activity up to 25 feet from the treated areas. This was performed on barns in open fields that had huge openings from wall to wall.
In most cases, however, I would not expect Termidor to work as well, and would not depend on Termidor to stop termite activity in areas that have not been treated.
In most cases, it is highly recommended that visible subterranean termite tunnels be removed and the soil in which they are built be saturated with Termidor, or any termiticide for that matter.
If Termidor has been used, and you find subterranean termite tunnels that are fully intact, my recommendation is to take a small flatblade screwdriver or knife and carefully open them. If you find termites inside the tubes, then obviously, treatment needs to be made. If you find no termite activity, wait a few days or weeks and see if the tunnel is rebuilt.
If the termite tunnel is rebuilt, then the termites are still active.
In most cases, at least with smaller pencil size termite tunnels, if the termite tunnel is saturated with Termidor, the termites will be affected. In larger termite tunnels, those that are very large and very old, they would need to be removed or at least completely drenched with Termidor to ensure that the chemicals penetrates the tube and affects the termites.
Here is the link to Termidor SC - http://www.epestsupply.com/product/BA...