Anyone know what the current recommended treatment is to PREVENT peach
tree borer attacks in the West Texas or Desert Southwest region?

I know Lindane used to be effective but it's been banned by the EPA.
Ortho's big insect book which the nurseries keep for reference says
use something with Carbaryl (otherwise known as SEVIN?). But their
web page only lists Bug-be-Gone MAX. The MAX label boasts that it
controls over 100 different insects, including peach tree borers but
it seems to me that something developed to be so universal probably
wouldn't be as effective as a treatment specifically developed for the
borers.