Tree Pests, Past Weather Events Combine to Damage Elms in Southeast Colorado

LA JUNTA, Colo. – Elm trees in southeast Colorado are having a bad year. On the heels of years of drought, which already had reduced overall tree health, they are suffering from a one-two punch of a dramatic temperature decline last November, damaging trees that had not yet gone dormant.

Educators Spend a Week at the Fire Ecology Institute

FLORISSANT, Colo. – The 14th Annual Fire Ecology Institute for Educators, a weeklong forestry and wildfire workshop offered by the Colorado State Forest Service (CSFS) and Project Learning Tree (PLT), brought educators from around the state to the Nature Place in Florissant, Colo., earlier this month.

CSFS Releases Cottonwood Management Quick Guide

FORT COLLINS, Colo. – Adapted to thrive on Colorado’s Eastern Plains, in mountain valleys and along riparian areas throughout the state, cottonwoods represent the largest native broadleaf trees in the state, and the most pervasive deciduous trees found at lower elevations.

New Biological Control to Help Manage Emerald Ash Borer in Colorado

BOULDER, Colo. – Over the next six weeks, more than a thousand stingless, parasitic wasps that target emerald ash borer (EAB) – a destructive, non-native tree pest that poses a serious threat to Colorado’s urban forests – will be released in Boulder to help control the borer’s spread.

Ribbon-Wrapped Ash Trees Warn of Pest’s Potential Impacts

BROOMFIELD, Colo. – This week, residents of several Front Range communities will notice trees in high-traffic public parks or along street rights-of-way encircled with wide bands of green or yellow ribbon that warn of an invasive tree pest.