If you have an aspen tree struggling ... weed whackers or animals. Cytospora creates a telltale pinkish or orange lesion on the bark of the trunk or the branches. This canker is particularly ...

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 ...

Fall in Colorado ushers in a show that locals await breathlessly, when quaking aspens ... irrigation. • Cytospora. Stressed aspen often fall prey to cytospora, a canker-causing fungus that ...

If you have an aspen tree struggling ... weedwackers or animals. Cytospora creates a telltale pinkish or orange lesion on the bark of the trunk or the branches. This canker is particularly ...