Learn how to identify the aspen tree in the forest, as well as facts about the tree's habitat, ... 32 Common Tree Diseases. Use Needles to Identify Common North American Coniferous Trees.

Quaking or trembling aspen is a short-lived (50 years), fast-growing, medium-sized tree. It seldom exceeds 60 feet in height and 20 inches in diameter. Although it has some good ornamental ...

Discover the major common tree diseases in the United States. Armillaria attacks both hardwoods and softwoods and causes either yellowing leaves or browning needles. Wood that is decaying from ...

Ecologically, aspen in natural settings serve as “succession” trees, quickly seeding in where other vegetation is lost because of erosion, fire, logging, insects or disease.

Aspen aren't the only trees in trouble in the Rockies. The needles of many spruce and pine trees in Colorado are tinged with red, a sign of bark beetle infestation. The outbreak began in 1996 and ...

We have a dead aspen tree in our yard that is about 25 years old and fairly large. ... In all likelihood, your tree died from the fungal disease Cytospora.

This guy can occur on a wide range of different host plants, but we see it overwhelmingly on aspen trees. It's a stress-related disease, attacking trees that are weakened for one reason or another.

EAGLE COUNTY ” While mountain pine beetles continue to ravage large swaths of forests in the West, the region’s aspen groves are falling prey to an unknown disease that could wipe out 10 ...

The city of Aspen announced Tuesday an increase in early leaf drop of some cottonwood trees due to a surge in fungal diseases. The primary fungus causing damage is Septoria, which is a common foliar ...

Editor’s note: This is the second in a two-part series about an infestation that is killing trees in local forests and on Aspen Mountain. An infestation of bugs and fungus killing trees on Aspen ...

FLAGSTAFF, Ariz. (AP) — In a story Oct. 3 about a disease affecting aspen trees, The Associated Press erroneously reported the names of a forest entomologist and an eastern Arizona forest. The ...

FLAGSTAFF, Ariz. (AP) — In a story Oct. 3 about a disease affecting aspen trees, The Associated Press erroneously reported the names of a forest entomologist and an eastern Arizona forest. The ...