Last summer we took a drive to Granby, just outside of Rocky Mountain National Park. While I had heard about the Mountain Pine Beetle for years, I was unprepared for the extent of the devastation. Entire mountainsides were covered in dead and dying pines, eerily resembling New England’s beautiful red fall foliage. But rather than deciduous maples and other hardwoods, these were conifers, largely ponderosas. They wouldn’t be turning green again come spring.

Many of us who live along the Front Range of the Rockies have ponderosa or other pines on our property. They’re well adapted to our climate and soils, and very resilient. But in spite of their suitability for our area, there are two major problems that pines can encounter. I discussed mistletoe last December. The other major cause of mortality is the mountain pine beetle (MPB).

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