In western pine Beatle does not survive in NH. That infestation does not come east of CO or the Dakota’s. It has really only been an issues with Lodgepole Pine and Ponderosa Pine. It has also pretty much run its course. All the Lodgepole in interior BC has been wiped out.
I know because I am a lumber broker.
Around here we have Eastern White Pine. It is the same species as Idaho White Pine, pinus strobus. Also known as The Kings pine because they were all owned by King George and were only to be cut for use as masts for his Royal Navy.
They are prevalent here in Georgia. I lost quite a few trees because of them.