Live Breaking News & Updates on Mountain Pine Beet Els

These source of almost 1 in every 3 boards hammered into american homes and where a plague of beetles arrived with the power to kill 100,000 trees a day. so many, you could hear them over the phone. you could actually hear the beetles underneath the bark. i m listening to my trees being killed. reporter: forest biologist janice cook studied the invasion of mountain pine beetles for decades. just wop effect of an overheating planet. warmer over winters and hotter, drier summers. we saw those populations not only rise to epidemic levels. but in some areas, what we call a hyperepidemic. reporter: mountain pine beet els attack a single tree like an invading army. the lodge pole pine pills its cracks with this sticky chemical compound we know as pitch. this turns out to be highly flammable. so in the end, if the beetles ....

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