May 27, 2014 - 09:42 AM
Another way to make much more foam is to purchase the 20 oz Termidor Concentrate and make you own foam by using the Solo Foaming Sprayer. You also purchase the Termidor Concentrate and use the Needle Injector to make injections into the holes you are drilling.
However you decide to do it, I think that using mothballs and borate rods is overkill. I would just use wood putty or silicone sealer.
Hope this helps.