Tall aspen trees covered in bright golden-yellow fall leaves viewed from below against a clear blue sky.

What’s Wrong with My Aspen Tree?

Why are your aspen leaves turning black, brown, or yellow? Learn what leaf spots, discoloration, and dieback can reveal about drought, disease, or pests.

Aspen tree trunk displaying classic cytospora canker symptoms with orange bark discoloration and canker formation in Colorado foothills.

Is Your Tree Dying? How to Identify and Manage Cytospora Canker in Colorado

Tree branches dying? Bark peeling off? You might be dealing with cytospora canker. Get expert diagnosis and treatment in Colorado’s foothills.

Aspen Trees: Common Problems & What To Do

Although Colorado’s aspen trees are beautiful, they’re also prone to a host of aspen tree problems. Thankfully, most are preventable or treatable – especially if you address the #1 issue nearly all aspens in our area face.

Spruce Broom Rust

If sections of your spruce tree are looking yellow or orange, especially during the summer months, it may be suffering from a disease called spruce broom rust.