TreeIssues

Red Turpentine Beetle in Colorado

MODERATE

Insect

Active now in Colorado

Red Turpentine Beetle is currently active in Colorado. Watch your susceptible trees closely and act early.

About Red Turpentine Beetle

Red Turpentine Beetle observed in the wild. Research-grade iNaturalist observation.

Symptoms to watch for

Treatment options

Targeted Insecticide Application

Chemical TreatmentEffectiveness: HIGH

Apply appropriate insecticide following label directions. Timing is critical — treat during the vulnerable larval or adult emergence stage for maximum effectiveness.

Biological Control Agents

Biological ControlEffectiveness: MODERATE

Introduce or encourage natural predators and parasitoids. Options include releasing predatory beetles, parasitic wasps, or applying Bt (Bacillus thuringiensis) for caterpillar pests.

Infested Material Removal

Mechanical RemovalEffectiveness: MODERATE

Prune and destroy infested branches and plant material. Remove fallen debris that may harbor eggs or larvae. Dispose of material away from healthy trees.

Recommended Products & Tools

Helpful supplies for managing Red Turpentine Beetle. Always read and follow label directions, and confirm a diagnosis before treating.

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Frequently asked questions

Is Red Turpentine Beetle in Colorado?

Red Turpentine Beetle is currently active in Colorado. Watch your susceptible trees closely and act early. It was first recorded here on August 3, 2026.

What does Red Turpentine Beetle look like?

How do I treat Red Turpentine Beetle?

Options include: Targeted Insecticide Application, Biological Control Agents, Infested Material Removal. Confirm the diagnosis before treating, and consider a certified arborist for high-value trees.