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CBS News Colorado
Mountain Pine Beetle
CBS News Colorado — Mountain Pine Beetle & Ponderosa Pines
Colorado arborist urges homeowners to protect ponderosa pines from Mountain Pine Beetle
By
Olivia Young
January 3, 2026 / 4:41 PM MST / CBS Colorado
It's the most common tree in Douglas County, but it's also under threat from the mountain pine beetle. As Colorado Gov. Jared Polis sounds the alarm about pine beetle outbreaks, there are steps homeowners can take to protect ponderosa pines.
"We love the trees in our communities. They're oxygen makers that give life, and we love to care for that life," said Michael Dwyer, a Douglas County arborist and founder of Cova Tree.
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CBS NEWS
How to protect your trees from bark beetles
CBS News Colorado - Bark Beetle Infestation
How to protect your trees from bark beetles
By
Olivia Young
Updated on: April 21, 2024 / 10:18 PM MDT / CBS Colorado
As Colorado experiences its signature whiplash weather, arborists are warning that stressed trees are more vulnerable to pests and diseases. Peel back the bark, and you may find a predator in your trees.
"See all that tunneling?" asked arborist Mike Dwyer, while pulling back the bark of a pine tree.
Bark beetles attack trees by tunneling in, laying eggs and bringing in a fungus that clogs the tree's vascular system.
"It's heartbreaking, it's heartbreaking because we've got at least three that are completely dead now," said Parker landowner Jim Lusko.
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