The recent cold, cold temperatures has everyone talking and hoping that it was cold enough to kill the mountain pine beetle. Sadly, the answer is no. "We need it to be sustained, at least two or three weeks" with temperatures of minus 20 or lower, U.S. Forest Service spokeswoman Janelle Smith said. "These short cold snaps will not do the job."
On a positive note, if it had occurred to you to put your wool garments outside during the cold snap, it would have kill any moth egg larvae that might have been present!
Read the whole story here.
This fact sheet discusses Mountain Pine Beetle in detail.