Colorado Arborist Advises Homeowners to Shield Ponderosa Pines from Pine Beetle

In Douglas County, Ponderosa pines face a significant threat from mountain pine beetles. Colorado Governor Jared Polis has raised alarms regarding the increasing outbreaks of these pests. Local arborists are advising homeowners on measures to protect these vital trees.

Understanding the Threat to Ponderosa Pines

Michael Dwyer, a prominent arborist and founder of Cova Tree, has noted a concerning rise in mountain pine beetles in residential areas this year. He explained that this increase is particularly alarming compared to previous years. State officials attribute the surge to warmer temperatures and prolonged drought, which weaken trees and create favorable conditions for beetle infestation.

Governor’s Action Plan

To combat this issue, Governor Polis recently established a task force dedicated to mitigating the spread of mountain pine beetles. The task force is focused on preserving Ponderosa pines in densely populated regions of Colorado. Dwyer expressed deep concern over the potential loss of these trees, which serve as essential oxygen producers and community landmarks.

Protective Measures for Homeowners

Even healthy Ponderosa pines are now vulnerable to beetle attacks. Dwyer emphasized the need for preventative treatments to safeguard these trees. He recommends using an insecticide called emamectin benzoate, found in a product named TREE-äge R10. This treatment involves injecting the chemical directly into the tree’s base to ensure thorough absorption.

Additional Protective Strategies

• Deep Watering: Regular deep root watering improves tree health.
• Mulching: Applying mulch around the base helps retain moisture.
• Insecticide Sprays: While sprays can deter beetles, they may also risk harming other wildlife.

Once a pine beetle breaches a tree, it is often too late for effective recovery. Dwyer stated that infested trees are frequently removed to curb further spreading and reduce fire hazards. In cases of tree removal, he employs a unique practice influenced by Hawaiian tradition, acknowledging the life once sustained by the tree.

Identifying Early Signs of Infestation

Dwyer urged landowners to be vigilant and look for early indicators of beetle activity, including:

• Pitch Tubes: Waxy, popcorn-shaped buildups on the tree’s surface.
• Frass: Dust like debris at the tree’s base, a byproduct of beetle feeding.
• Browning Needles: Any discoloration or browning of tree branches and needles.

Community action is crucial in the fight against these pests. Dwyer encourages collaboration among residents to protect the Ponderosa pines in their neighborhoods. Consulting a certified arborist for a tree wellness assessment can also help identify trees that are most at risk.

As the mountain pine beetle crisis escalates, proactive measures and community awareness are essential in safeguarding Colorado’s cherished Ponderosa pines.