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
Yes, Termidor SC will work for Formosan termites. Formosan termites are a species of subterranean termites and Termidor SC is labeled for subterranean termites.
We are not sure if are asking if you can use Termidor SC on edible vegetables or if you accidentally treated near a garden, but Termidor SC should not under any circumstances be applied near or on anything edible. You should keep Termidor treatments at least 10 feet away from any garden. If you treated on or near your garden, you should discard anything that may be contaminated with Termidor SC. If you are looking for something to treat your garden with, we do have many products that are for use on gardens.
We would highly suggest trenching and treating instead of only treating inside the cinder block wall. Termidor is meant to bond to soil and be applied into the ground. It will not last very long just treating into the cinder block walls. Cinder blocks are also very porous, so they will soak up a lot of the termidor and you might get a few months of protection instead of 10 years when applying it into the ground.
You should follow the instructions as outlined in our How To Do A Termite Treatment article to treat the exterior and underside of your crawl space.
We would recommend doing a trench treatment around your home for an active infestation of termites. We have a helpful article on How to Get Rid of Termites that we recommend reviewing for the best advice.
Please be sure to read the product label of any insecticide you choose to use to get information on the needed personal protective safety gear you will need. In most situations it is recommended that you wear long pants, a long sleeved shirt, closed toe shoes with socks, chemical resistant gloves and goggles. In areas where ventilation is poor a manufacturer may recommend you wear a mask or a respirator. We have put together 2 different safety kits that will make selecting correct safety gear easier for you.