

Pest Defense
Defending Denver's Trees Against Destructive Pests
Insects can rapidly compromise the health and structural integrity of your trees. From defoliating caterpillars that strip leaves to wood-boring beetles that destroy the vascular system from the inside out, early detection and proper treatment are critical.
As part of our comprehensive Plant Health Care program, Tree Pros provides expert insect identification, precisely timed preventative care, and targeted treatments. We are licensed by the Colorado Department of Agriculture to safely and effectively manage tree pests.
Our Approach
Our Insect Management Approach

Insect Identification
Accurately identifying the specific pest species to determine the most effective control method.

Treatment Timing
Applying treatments at the exact stage of the insect's life cycle when they are most vulnerable.

Preventative Care
Proactive treatments to protect highly susceptible or high-value trees before infestation occurs.

Boring Insects
Managing destructive pests like the Emerald Ash Borer, Ips Beetles, and Mountain Pine Beetle.

Defoliating Insects
Controlling caterpillars, sawflies, and leafminers that damage foliage and weaken trees.

Plant Health Connection
Improving overall tree vigor so trees can naturally resist and recover from pest attacks.
Arborist Assessment
The Right Recommendation Starts With the Right Assessment
Tree Pros does not automatically recommend removal. Our arborists evaluate the full picture before recommending any course of action.
Pest Identification
We accurately identify the specific insect species to determine the most effective control method.
Damage Assessment
We evaluate the extent of insect damage and the tree's ability to recover.
Treatment Timing
We time treatments to the insect's life cycle when they are most vulnerable.
Tree Health Evaluation
We assess overall tree vigor, as healthy trees naturally resist and recover from pests.
Treatment Alternatives
We explore treatment, monitoring, and plant health care before considering removal.
ISA Best Practices
All recommendations follow ISA Best Management Practices for integrated pest management.
Our Process
A Clear Path From Assessment to Completion
Request an Assessment
Contact Tree Pros for a free insect inspection.
Arborist Evaluation
A certified arborist identifies the pest and damage extent.
Clear Recommendation
Receive a targeted treatment plan with transparent pricing.
Professional Treatment
Our CDA-licensed team applies timed, targeted treatments.
Follow-Up & Monitoring
We monitor results and provide ongoing pest prevention guidance.
Local Expertise
Denver's Climate Demands Specialized Tree Care
Denver's unique weather patterns and urban growing conditions create specific challenges for tree health and safety.
Emerald Ash Borer
EAB is a destructive invasive beetle threatening Denver's ash trees. Preventative treatment is essential for valuable specimens.
IPS Beetle Outbreaks
IPS Beetles attack stressed spruce and pine trees, especially during drought periods common in Denver.
Drought-Stressed Trees
Denver's semi-arid climate weakens tree defenses, making them more attractive to boring insects.
Seasonal Pest Cycles
Denver's insect activity follows predictable seasonal cycles that require precisely timed treatments.
Urban Pest Pressure
Denver's urban landscape concentrates tree species, creating conditions where pests can spread quickly.
Mature Tree Vulnerability
Older mature trees are more susceptible to insect damage and benefit from proactive monitoring.
Professional Standards
Why Professional Arboriculture Matters
Poor tree work can permanently damage structure, health, and longevity. Professional arboriculture protects your trees and property for decades.
Correct Identification
Different insects require different treatments. A certified arborist identifies the exact pest before applying any control.
Timing Is Critical
Treatments are only effective during specific windows of the insect's life cycle. Mistimed applications waste money and fail to protect.
Integrated Pest Management
Professional arborists use a holistic approach — improving tree health, monitoring, and targeted treatment — rather than indiscriminate spraying.
Safe, Legal Application
CDA-licensed applicators ensure treatments are safe for your family, pets, and the environment.
Why Tree Pros
Arborist Expertise. Personal Service.
Tree Pros combines the expertise of highly credentialed arborists with the personal service of a small, family-owned Denver company.
Board-Certified Master Arborist Leadership
Paul Goin holds the highest credential offered by the ISA, achieved in January 2015.
Three ISA Certified Arborists on Staff
Every Tree Pros crew leader is an ISA Certified Arborist — not just a tree worker.
Family-Owned Since 2003
A small, personal company that values long-term customer relationships over volume.
ISA Best Management Practices
Recommendations based on what's right for the tree and property, not the largest invoice.
Related Services
Complete Tree Care Under One Roof
Plant Health Care
Comprehensive health management to prevent pest problems.
Learn MoreTree Disease Treatment
Diagnosis and treatment of diseases that often accompany pests.
Learn MoreTree Fertilization
Nutrient support to strengthen tree pest resistance.
Learn MoreCertified Arborist Services
Expert pest identification and risk evaluation.
Learn MoreFAQ
Frequently Asked Questions
What insects damage Denver trees?+
How do I know if my tree has insect damage?+
Do you provide free insect inspections?+
Is Tree Pros licensed to apply insect treatments?+
Can insect damage be reversed?+
What is Emerald Ash Borer?+
What areas do you serve for insect control?+

