No, Regardless of what treatment you are doing Termidor SC can only be mixed at .8 fl oz. per gallon of water. Termidor SC is a non-repellent, if you mix at a stronger strength than labeled you run the risk of taking away its non-repellent properties. Always mix at .8 oz to a gallon.
Termidor: http://www.domyownpestcontrol.com/termidor-sc-p-184.html
Bora-Care is usually the preferred choice if most of the wood is exposed and it is raw wood you are treating, meaning it is not painted, stained, or sealed, it is just normal wood. Bora-Care is made only for wood, and you do not have to know exactly where the termites are for it to work which is a plus. Bora-Care is sprayed evenly over all exposed surfaces of the wood and actually penetrates through the entire piece of wood. When the termites in the wood try to consume the wood after it has been treated, they ingest the Bora-Care with the wood and die. No matter where they are in the wood the Bora-Care will find them as long as you treated the exposed wood that you can see. The other main benefit is that Bora-Care stays in the wood forever, so you will not have to worry about termites or beetles infesting the wood that you treated ever again.
Bora-Care: http://www.domyownpestcontrol.com/boracare-p-100.html
Termidor SC can be toxic to Millipedes. When applied per label, Termidor will not harm plants. Be sure to keep all children and pets out of the treated area until dried.
Yes, Termidor SC will work for Formosan termites. Formosan termites are a species of subterranean termites and Termidor SC is labeled for subterranean termites.