Accurate Diagnosis. Targeted Treatment. Healthier Trees.

Tree & Plant Disease Treatment in Front Range, CO

Is Your Tree Showing Signs of Disease?

Tree diseases can spread quickly — and once symptoms appear, the clock starts ticking. Early detection is the difference between saving a tree and losing it. At Knothead Tree and Lawn Care, our ISA-Certified Arborists diagnose and treat tree diseases using science-based methods tailored to Colorado’s climate.

Whether you’re seeing unusual leaf color, thinning canopies, or fungal growth, our team provides clear answers and effective treatment plans to restore your landscape’s health.

Early Warning Signs You Shouldn’t Ignore

Early detection makes all the difference in tree recovery. If you notice any of these symptoms, your tree may be fighting a disease:

Discolored, spotted, or curling leaves
Fungal growth on bark or roots
Sudden canopy thinning or premature leaf drop
Branch dieback starting at the tips
Oozing sap, open wounds, or bark splitting
Mushrooms or bracket fungi at the tree’s base

Not sure what you’re seeing? Don’t wait until it’s too late.

Diseased leaves | Knothead Tree and Lawn Care

Our Tree Disease Diagnosis Process

We don’t guess, we diagnose. Our arborists use a structured, science-driven process to identify the root cause and recommend the right treatment.

Step 1 – Visual Inspection by a Certified Arborist

One of our ISA-Certified Arborists in Front Range inspects your tree’s leaves, bark, and root system. We also check for signs of insect activity, environmental stress, or secondary infections.

Step 2 – Tree & Soil Health Analysis

If needed, we go deeper with soil testing. Poor drainage, soil compaction, and nutrient imbalances often make trees more vulnerable to disease. Understanding soil health ensures our treatments are long-lasting.

Step 3 – Clear Diagnosis and Quote

You’ll receive a written diagnosis outlining the issue, recommended treatments, and an upfront price estimate. No hidden fees. No unnecessary upsells.

Targeted Treatment Options

Every tree is different — and so is every disease. We tailor treatments to species, age, and severity. Depending on what we find, we may recommend:

Trunk Injections – Highly effective against internal fungal and bacterial infections like fire blight or Dutch elm disease.
Foliar Sprays – Controls surface-borne pathogens and certain insect-related problems.
Soil Amendments – Improve root zone health, drainage, and nutrient uptake.
Systemic Treatments – Long-lasting internal protection for vulnerable trees.
Cultural & Preventive Measures – Pruning for better airflow, watering schedules, and mulching strategies to strengthen natural defenses.

Our goal is always preservation first, we want to save healthy trees whenever possible.

Tree spray | Knothead Tree and Lawn Care

Testimonials

Real Stories from Your Neighbors

Company truck | Knothead Tree and Lawn Care

    
 
 
         
   Katie Cullum 
 
 
 
 Trustindex verifies that the original source of the review is Google. The Knothead crew have helped me with a few tree trimmings this spring as well as tree limb removal from snow damage, even referring me to a stump grinder for a few dead bushes. They were respectful and efficient and actually showed up when they said they would! I would recommend their services ~ 5 stars!
  
 
        
   Lura Wolfe 
 
 
 
 Trustindex verifies that the original source of the review is Google. Knothead Tree Care visited The Indian Park Schoolhouse and trimmed our huge old trees with care.  They understood the need to trim the dead branches while still caring for the tree.  They were fast, efficient, but most of all careful of the trees.
  
 
        
   Christina Young 
 
 
 
 Trustindex verifies that the original source of the review is Google. Grant and AJ are very pleasent to work with,  have been trusting, hard working, helpful and kind. I would trust them with any of my tree needs. You can't go wrong!!
  
 
        
   Dwight D 
 
 
 
 Trustindex verifies that the original source of the review is Google. Grant and Andy did a superb job on our tall pine, cleaning up broken limbs from heavy shows. Very professional and well equipped.
  
 
        
   Stephen Berry 
 
 
 
 Trustindex verifies that the original source of the review is Google. Andy and Darrin are the definitive example of stellar customer service. I would give 6 stars if I could!
  
 
        
   Anne Wattenberg 
 
 
 
 Trustindex verifies that the original source of the review is Google. Knothead, Brett’s team has been taking care of our trees for 15 years and has gone above and beyond to keep them heathy and looking beautiful!
  
 
        
   Larry 
 
 
 
 Trustindex verifies that the original source of the review is Google. Greg, Garrett, and Alex from Knothead did really great work removing a large 40+ year-old foxtail pine that had succumbed to a faulty watering system and extreme drought conditions. They were remarkably efficient and cleaned up everything when the job was done. We will definitely use their services again--highly recommend.
  
 
        
   Rich Colaiano 
 
 
 
 Trustindex verifies that the original source of the review is Google. I just had our trees sprayed for the second time, this company, and these people, Aaron and AJ, have saved my trees. We were told by another arborist that our trees were going to die, and there was nothing we could do about it. This company‘s arborist came out and told us what to do to save our trees, we did what he told us to do, and they did what they said they were going to do. And saved all our trees thanks again. Highly recommended. Also reasonably priced for the work they do.
  
 
        
   george majors 
 
 
 
 Trustindex verifies that the original source of the review is Google. Thank you Andy, Joseph, and Ken, for the removal of our Dead Pine tree and the trimming of another Pine tree, in our Champions Court Community here in Castle Rock Good Job Guys
  
 
        
   Gael Barker 
 
 
 
 Trustindex verifies that the original source of the review is Google. Knothead Tree and Lawncare is a must have in our CO climate.  We have used them for years.  Everyone is personable, helpful, true to schedules set.  Brett, the owner is a certified arborist with an enormous amount of knowledge.  He is always available for questions or to stop by and advise on a problem.  His integrity is beyond reproach and is sensitive to budget constraints.  I can't say enough about this great company and urge you to call for all your tree, bush, lawn care needs you will not be disappointed. Happy in Larkspur
  
 
  
 
  
 
   Google rating score: 5.0 of 5, based on 28 reviews

Why Choose Knothead for Tree & Plant Health in Front Range?

Locally Trusted Since 2008

(303) 885-3800(303) 885-3800

When you search for tree disease treatment near me, you want a trusted partner who knows Colorado’s unique climate and tree species. Here’s why homeowners choose Knothead:

Local experts with deep knowledge of Front Range tree diseases
ISA-certified arborists on every job
Transparent pricing and honest recommendations
Responsive service across Front Range, Parker, Highlands Ranch, and nearby towns
Backed by hundreds of 5-star reviews from happy clients

We treat every yard like our own: with care, precision, and respect for your property.

Schedule a Free Consultation

Can My Diseased Tree Be Saved?

In many cases, yes. With timely tree disease treatment, we can stabilize or restore a tree before the damage becomes irreversible. However, if a tree is too far gone, it can become hazardous to your home or property. If removal is the safest option, we’ll explain why and guide you through replacement choices that fit your landscape.

(303) 885-3800(303) 885-3800

FAQs About Tree Disease Treatment

Q: Who should I call for a sick tree?

A: Call a certified arborist. At Knothead Tree & Lawn Care, our team specializes in sick tree diagnosis and treatment throughout Front Range and nearby towns.

Q: What are the most common tree diseases in Colorado?

A: Some of the most frequent issues we treat include:

Fire blight (apple, pear, and other fruit trees)
Cytospora canker (spruce)
Thousand cankers disease (walnut)
Root rot fungi (common after wet weather)

Q: How much does it cost to treat a tree disease?

A: Pricing varies based on the disease, treatment method, and tree size. We provide upfront quotes after a full evaluation, so you’ll know exactly what to expect.

Q: Can a diseased tree be saved?

A: Often, yes, especially if caught early. If not, we’ll guide you through safe removal and discuss replacement options.

Serving Front Range and Beyond

Professional Tree Services in Your Neck of the Woods

Not located in Front Range? No problem! We service a large portion of central Colorado, in including but not limited to the following cities:

Don’t see your city listed? Visit our service area page, or contact us to learn more about the areas we cover.

(303) 885-3800(303) 885-3800

Colorado wilderness | Knothead Tree and Lawn Care

Get Expert Help for Your Trees Today

Don’t let a treatable issue become a costly removal. Our team of ISA-Certified Arborists is ready to provide accurate diagnosis and effective tree disease treatment in Front Range, CO.

Request a ConsultationRequest a Consultation

Tree & Plant Disease Treatment in Front Range, CO

Is Your Tree Showing Signs of Disease?

Early Warning Signs You Shouldn’t Ignore

Our Tree Disease Diagnosis Process

Step 1 – Visual Inspection by a Certified Arborist

Step 2 – Tree & Soil Health Analysis

Step 3 – Clear Diagnosis and Quote

Targeted Treatment Options

Testimonials

Real Stories from Your Neighbors

Why Choose Knothead for Tree & Plant Health in Front Range?

Locally Trusted Since 2008

Can My Diseased Tree Be Saved?

FAQs About Tree Disease Treatment

Q: Who should I call for a sick tree?

Q: What are the most common tree diseases in Colorado?

Q: How much does it cost to treat a tree disease?

Q: Can a diseased tree be saved?

Serving Front Range and Beyond

Professional Tree Services in Your Neck of the Woods

Get Expert Help for Your Trees Today

What We Offer

Where We Serve

Who We Are