Thanks for the reply, Les.
I looked at Applegate site and they showed install between studs and talked about attics, but not about crawlspaces.
This application was on inside of crawlspace walls. BTW the same termite man told me on site that they do not touch contracts with plastic foam sealed/conditioned crawls, which are very rare here.
I think what we are seeing is diffs in termite infestation zones. Here in the Georgia piney woods we are very vulnerable to termite infestation.
The further south you go the worse it gets. A friend rehabbed a 10th floor condo in San Juan, Puerto Rico many years ago. Even on the tenth floor he had to be sure that every stick of wood he used was treated. He took me on a drive and pointed out termite nests on palm trees that were forty feet off the ground.
My termite inspector, who makes an annual visit to my home, has told me that chemical treatments through time have backed off from toxicity in the direction of safety to such a degree that his company will not offer a warranty for more than about five years. My original contract with them was a 20 yr repair guarantee. Now we just have a "control" contract where they will treat infestations they may find, but any repairs needed are my problem.