This is called "Red and Dead" and is about the mountain pine bark beetle infestation in Montana (and Idaho, since it's eating away here too). It's MT pbs, about half hour, and interesting. Aside from explaining what the beetle does and how it is so successful, the show it also talks about what you can do to protect your trees since this is an urban problem too.
I thought I'd stick it in the message queue if you were looking for something to broaden your horizons. enjoy...i did...and i don't "do" bugs.
http://www.montanapbs.org/MontanaFocus/episode602/