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What our clients are saying...

Your crew did a great job.  They were very professional and easy to work with.  I will definitely recommend you to my friends.

Janet G.

The crew did a wonderful job and we are very pleased with your company. We would hire you again for future work.


Throughout the years, Ed and his crew always do an amazing job!  I am so grateful I have someone to call that I can trust.

Wendy P.
Glenwood Springs

You have the best workers...truly gentlemen.

Patty M.

Thanks for the great work.  Really pleased.

Ned C.
Snowmass Village

You are a great service - very professional and organized.

Mary Jo K.

Thank you for taking such good care of our landscape and trees!

Judy H.

You are wise indeed.  Your men out in the field are educated and thorough...glad I discovered you after all these years.

Diana G.
Snowmass Village

Certified Arborists on Staff

Serving Pitkin, Garfield and Eagle Counties
We are the Plant Health Care Specialists
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Aspen Tree Doctor and Vail Tree Doctor for Tree Services in Vail and Aspen Snowmass. Basalt Carbondale Avon Beaver Creek

Earth-Wise Horticultural, Inc.

We take our name seriously.  Since 1994, we have been providing a balanced approach to plant health care needs in the unique mountain communities of Colorado. We are a licensed and insured company specializing in insect and disease treatment and tree trimming and removal. Whether you want to protect your trees or keep your plants looking their best, Earth-Wise’s knowledge and superior customer service has you covered. From our base of operations in Glenwood Springs, we service Pitkin, Garfield and Eagle County residences, municipalities and commercial properties.


What's New - Summer 2015



Wet Weather Means Aphids & Fungal Diseases on the Rise

The weather plays a large role in determining what pest problems we see each year. This year’s wet spring and early summer weather has created a perfect environment for aphids and fungal diseases to thrive.


Lady bugs, the most common beneficial predator that feed on aphids, don’t like cool wet weather. They don’t reproduce or feed as much as they normally would, which allows aphid populations to explode. While there are hundreds of species of aphids in Colorado and almost all plants can be hosts, we are currently seeing large numbers of aphids on aspens, cottonwoods, cherries, plums, dogwood shrubs and spireas. Shiny leaves and sticky honeydew dripping from trees are indicative of a large aphid population. If control is required, there are many options including sprays, soil injections or trunk injections.


In wet years, marssonina blight is a common fungal disease on the foliage of aspens. Brown/black spots, often surrounded by a yellow halo, can be seen on infected leaves. Typically, these spots grow as the infection spreads and the leaves fall off of the tree early. In some neighborhoods, we’re already seeing significant aspen leaf drop caused by marssonina blight. Preventive fungicide sprays offer some control, but there are no curative measures. Infected leaves should be raked up and disposed of to minimize the number of fungal spores present.


Cottonwood foliage is prone to infection by septoria leaf spot. This disease causes tan colored spots to form on the leaves and premature leaf drop. Like aspens, some cottonwoods are already dropping leaves. Once again, preventive fungicide sprays and/or raking and disposing of infected leaves are the best treatment options.


Turf grass is vulnerable to several common fungal pathogens during extended wet periods. Symptoms include purple or black spots on the leaf blades, sometimes accompanied by a narrowing, or pinching, of the blade and a general yellowing of the grass. Reducing irrigation during rainy weather is critical in controlling these diseases. Allowing the turf to dry is the simplest way to minimize fungal infections. If treatment is necessary, fungicide sprays offer control.