Justin from Dry Fork writes
Just trying to figure out if spraying a active tube is benificial . I sprayed a termite highway and termites with Termidor FOAM by breaking the highway. Several termites began rebuilding. 8 hours later the hole was fixed. Just wondering how long the foam last on the mud tubes. On a side note i trenched and drilled the house today.
Termidor FOAM will last for about 6 weeks after application. It is really meant more for spot applications in wall voids indoors. If you trenched outdoors with Termidor SC, this will eliminate the entire colony within 90 days.
Answer last updated on: 08/01/2017