Content tagged "aspen"

Fire Ecology in Aspen Forests

Prescribed Fire Updated: November 25, 2015

By Paul Rogers, Utah State University Aspen has conventionally been thought of as "fire dependent," meaning that it requires forest fires to thrive. The...

What could be causing spots on the leaves of aspen trees and what is a recommended treatment?

Updated: February 14, 2012

Aspens are susceptible to many problems in the urban landscape. One of those problems is aspen leaf spot, a disease caused by fungus. Aspen leaf spot, or...

The leaves on my aspen tree are all sticky. What insects are doing this and is there a recommended treatment?

Updated: October 16, 2011

Dozens of species of aphids (plant lice) may be found on shade trees and woody ornamental plants in Colorado. Aphids feed on plants by sucking sap from the...

My aspen tree has little knobby growths all over the branches; what is it and how can it be treated?

Updated: October 16, 2011

Knobby growths on aspens are symptoms of twig gall, something particularly common in Colorado’s Front Range area. A gall is basically a growth that is...

What can be done about an orange substance oozing from an aspen tree?

Updated: June 25, 2010

What are some potential problems that could affect aspen trees in high plains backyards?

Updated: June 24, 2010

Is it a good investment to have spruce and aspen trees sprayed to prevent insects in the spring?

Updated: June 24, 2010

The leaves of my aspen have been turning brown around the edges and some are dropping. What should I do?

Updated: June 24, 2010

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This work is supported by the USDA National Institute of Food and Agriculture, New Technologies for Ag Extension project.