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Dying, Off-Color Pine Needles Normal in Autumn

FORT COLLINS, Colo. — Although thousands of evergreen trees in Colorado’s high country, foothills and communities are beginning to display dying yellow or brown needles, most are simply going through a natural shedding process — and are not being damaged by bark beetles or any specific tree insect or disease.

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Emerald Ash Borer Detected in Lafayette

LAFAYETTE, Colo. — This week, the invasive tree pest emerald ash borer (EAB) was confirmed in the City of Lafayette. This detection is still within a quarantine area established to try and prevent the human-assisted spread of EAB, but represents only the third confirmation of EAB anywhere in Colorado outside the City of Boulder, where the pest was first detected in 2013. EAB has also been confirmed in Gunbarrel and Longmont.

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