Late Winter or Early Spring the Best Time to Prune Trees

Female forester pruning a tree

With spring around the corner, the Colorado State Forest Service is reminding residents that late winter or early spring is the best time to prune most trees. Trees are still dormant at this time of year and, unlike in early winter, wound closure will happen sooner if pruning occurs just prior to the time new growth emerges.

Report Focuses on What State Needs to Do After Historic Wildfires

2020 Report on the Health of Colorado's Forests

The Colorado State Forest Service (CSFS) published its annual forest health report today, highlighting the current conditions of forests across Colorado and how the agency is improving the health of the state’s forests in the wake of historic wildfires.

Aerial Survey: Though Declining, Spruce Beetle Remains Most Damaging Forest Pest

spruce beetle damage at Wolf Creek Pass

Forest managers are working together to address continued outbreaks of insects and disease in Colorado’s forests, including the spruce beetle, which remains the most damaging forest pest in the state for the ninth consecutive year, based on a 2020 aerial detection survey led by the USDA Forest Service, Rocky Mountain Region, and Colorado State Forest Service.

Prep Trees in Fall for the Winter Ahead

FORT COLLINS, Colo. – Trees in urban and community settings throughout Colorado are going dormant, and they require care before and during the winter to remain in top health. Homeowners can take measures now and through spring to help their trees through the oncoming harsh conditions, says Vince Urbina, community forestry program manager for the Colorado State Forest Service (CSFS).

Dying, Off-Color Pine Needles Normal in Autumn

Fall Needle Drop in Ponderosa Pine

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 – they are not being damaged by bark beetles or any specific tree insect or disease.

Take Care Dealing with Storm-Damaged Trees

Storm-damaged tree in Alamosa, Colo.

FORT COLLINS, Colo. – This week, the cold front that brought high winds and wet, heavy snow to much of Colorado may have damaged trees. Coloradans who are dealing with broken tree limbs after the late-summer snowstorm may be considering actions to protect and repair them.