Terminals of blue spruce in Colorado repeatedly attacked by white pine weevil.

Is the Top of Your Spruce Tree Bending? It May be Damage from the White Pine Weevil

If the top of your spruce trees are bending and turning brown, they may be infected by the white pine weevil. Learn more about how this tree pest impacts Colorado trees in this article.

Mountain pine beetle damage to lodgepole pines in Colorado.

How Wildfire Management makes Mountain Pine Beetle (and Other Pests) Worse

In this article, we will explain more about this strange relationship between wildfire suppression and tree pests, explore what can be done to change this pattern, and give you information on how to keep your Colorado property fire safe and your trees healthy.

Are your tree pests attracting wasps?

Wasps are different from bees. While bees provide benefits to our plants, wasps on the other hand, can cause harm to humans due to their stings. Learn why wasps appear in your Colorado property and know what you can do to ward them off.

Mountain Pine Beetles

Periodic outbreaks of mountain pine beetles can destroy millions of trees in Colorado and other states. They develop primarily in pines and can spread rapidly. Here’s what you need to know about treatment and how to help stop the spread of mountain pine beetles.

Signs of spruce budworm infestation on a tree in Evergreen, Colorado.

How to Identify & Get Rid of Spruce Budworms

Spruce budworms can cause serious damage. Identify and manage them early to save your trees & avoid further infestation. Here’s how you can get rid of them.

squirrel on a snow-covered tree near evergreen colorado

How to Prevent Winter Rodent Damage to Your Trees

Voles, gophers, rabbits, and squirrels can damage or even kill trees during the winter. See our recommendations for how to keep your trees safe from rodent damage this winter.

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.

How Spring Weather Affects Treatment Timing For Weeds, Insect Pests & Tree Diseases

Have you ever wondered why weeds, bugs, and plant diseases seem to appear earlier some years but much later other years? Unlike holidays and birthdays, the emergence of weeds and insect populations isn’t determined by a date on your calendar. Instead, timing is based on a combination of factors, with spring weather conditions being the most important.

Aspens Turning Orange? It’s Cytospora Canker

Cytospora canker causes dead or dying areas on tree bark. In aspens, this area turns orange. The cankers kill tree branches (you’ll often see this in spruce) and, in severe cases, will kill the whole tree. There’s no cure so prevention is critical.

Spider Mites Suck Plants Dry

Spider mites are common and destructive pests in Colorado yards, including on trees of all kinds. Learn how to identify these tiny arachnids and control them before they kill your plants.