Credit Colorado State Forest Service
A new USDA Forest Service and Colorado State Forest Service survey finds that spruce beetles continue to be the most damaging pest in Rocky Mountain forests.
Survey manager Brian Howell said the mountain pine beetle outbreak peaked around 2010 and has run its course. But now they re seeing a similar problem with the spruce beetle. We sort of have some fronts of activity, if you can think of the beetle marching at a far slower pace but not unlike a firefront, sort of moving through the forest, he said. We ve seen just kind of a continuation of that activity in Wyoming and Colorado.