Hey,
Do you have any success rates from people that have actually used Dominion 2L on the pine beetles with the goal of saving the tree?
I checked with several tree guys and all of them use Bifen except one that uses Permethrin. Claimed success rates vary, but usually low. None of them bother trying it unless it's an ornamental or yard tree. Timber, they cut the tree and it's neighbor trees and sometimes spray the perimeter of the affected area. A few try to salvage the wood for the mill depending on where it is, how much it is, and other things. Some chip the bark on the popcorn spots to try to get the poison in deeper, all soak the ground close to the tree. They must do it heavily because one mentioned a cost of about $40 per tree in poison (and these guys buy the big jugs) just to try it.
Anyway, please post the results of whatever method and chemical you use. There are some tree guys in MS who are very interested.