OK, flame away.
I can't say about pine beetles in the west, but the wooley adelgid was introduced, with no natural predation, so attempts to eradicate aren't going to upset anything.
OK..how about this...you raise about 2 million baby woodpeckers and let them go in the forest?
No flames, I used to help my friends mother setup traps for boring beetles, she worked for Pherotech.
http://www.pherotech.com/
Theese are the traps we used: http://www.pherotech.com/page154.htm
They work on pheromones. They have a bait that mimics the pheromones of the beetles, the horny little bugs go into the trap and they die.
They have Attractant semiochemicals and Repellant semiochemicals... http://pherotech.xplorex.com/page193.htm
Maybe they have something for these beetles. The same beetles have infested an Austrian Pine in my backyard.
yea right. They don't "spray" forrests. And they don't use napalm to kill pine beetles either. Spraying would be a useless method even if they did consider it. these beetles live in the tree, not outside of it. They spread when the adult emerges and flies away and lays eggs. When they hatch they crawl up the tree trunk and bore in. Thats why some use a soapy solution and banding to try keep thier trees from becoming infested at that stage.
There might even be an innoculation available, at least there is for other bug problems. I'm not sure about pine beetles. Cold weather kills them.