Tree Insect Control

Leading Innovator in Tree Insect Control

Ross Tree Company prides itself on being a leading innovator in tree insect control. We were the first tree service company in Denver to offer tree injections, a practicable alternative to spraying trees. Trunk injections ensure that only the tree gets the product, not the surrounding environment. No need to close windows, cover furniture, or keep pets indoors when injecting trees to control tree pests. Trunk injections protect your trees for one or two growing seasons, depending on the application. Please see our insect calendar to find out more information about local harmful tree insects and diseases.

In contrast, spraying trees treats insects or diseases present at the time of treatment. Sometimes spraying is warranted because of an insect infestation or disease outbreak that needs immediate attention. Ross Tree sits down with the residential or commercial property owner to discuss all options before treatment commences.

For environmentally friendly plant health care services, click here to fill out a service request form or call 303-871-9121. We are at your service.

Environmentally Friendly Insect Control

Ross Tree’s motto is “Integrity in Action,” which means we’re committed to minimizing our impact on the environment when delivering plant health care services. We deliver on this promise because our staff possesses the proper training and credentials to treat trees properly in the Denver area. Ross Tree has three Qualified Supervisors (QS) licensed by the Colorado Department of Agriculture to handle pesticide products. We only use the products necessary to treat your trees and nothing more. 

Trunk injections treat your trees for various tree insects such as Aphids, Emerald and Lilac Ash Borers, Mountain Pine, and IPS Engraver Beetles. We also inject nutrients and antibiotics to correct deficiencies or control tree diseases. Some tree insects are beneficial or benign. These bugs are part of the urban forest, so Ross Tree takes the time to identify if a tree insect is a friend or foe before treatment commences. Sometimes even with the best efforts, tree insects or diseases kill a tree, so, unfortunately, tree removal is necessary.  

Emerald Ash Borer Treatments

The Emerald Ash Borer (EAB) is getting closer to Denver after being found in Bloomfield and Westminster in 2019 and appearing in Arvada in 2020. American Ash trees have no immunity to the EAB and will die if not treated. So, prevention is a must to protect high-value, mature Ash against the EAB. Ross Tree uses tree injections to control these tree insects. We are a licensed Colorado Department of Agriculture Commercial Pesticide Applicator and offer several effective treatment options for controlling EAB. We recommend protecting trees for up to two years and are up to 95% effective against the EAB. Click here our handbook on Emerald Ash Borer.

Thanks for being so accommodating, crew did a great job as usual.
Judy

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Tree Pests to Watch Out for in August in Denver

This August, two tree pests are having a field day in Denver - the Elm Leaf Beetle and the Honeylocust Spider Mite. Our wet spring set up conditions for the Elm Leaf Beetle to thrive and attack Elms across the city. Consecutive 90 degree days this summer is perfect...

How Do I Get My Trees Ready For The Summer?

Summer Tree Care Tips As Ross Tree's General Manager explains in the video below, summer is an excellent time to get your trees ready to withstand Denver's unpredictable weather. He recommends increasing deep rooting feeding to at least two times during the growing...

Pine Tree Care Handbook

How Do I Keep My Evergreen Trees Healthy In Denver? Ross Tree publishes handbooks on key tree issues common to the Denver area. The Pine Tree Care Handbook identifies pines and other conifers that grow here and the insects and diseases that inflict them. Colorado has...

What to do after planting a new tree?

Newly Planted Tree Care Tips Wondering what to do after planting a new tree? Below are some tips after the tree is in the ground. For the last 35 years, Denver Digs Trees has been a significant force in expanding the City’s urban forest by providing more than 60,000...

Preparing Trees for Denver’s Heavy Spring Snowstorms

Channel 9 News recently ran a story on "How To Remove Snow From Your Trees During An April Storm." After the spat of snowstorms Denver experienced in March and April, many homeowners wished they had hired a professional tree company for winter tree pruning to avoid...

Emerald Ash Borer Handbook

The Emerald Ash Borer Is Here to Stay To help our customers, Ross Tree, a locally owned and operated Denver tree company, created an Emerald Ash Borer Handbook to inform home and business owners about this troublesome iridescent green beetle. The Emerald Ash Borer...

Sometimes It is Best to Call a Professional Tree Company

Large Cottonwood Tree Removal  Tree removals next to homes, sheds, garages, fences, and streets need special care. Large trees are heavy, and when cut down, sometimes fall unpredictably, which is dangerous. Ross Tree, a Denver-based tree company, is known for pruning...

Ask a Professional – Why Use Systemic Products to Control Tree Pests?

Systemic Tree Injections  Ross Tree, a leading innovator in tree insect control, recommends tree systemic injections to control tree insects. We were the first tree company in Denver to offer tree injections, a practicable alternative to spraying trees. Using...

A Short Guide to Aspen Trees and Their Care

How to Care For Your Aspen Trees Colorado has a higher percentage of the species growing within its borders than any other state. Aspens thrive in higher elevations. Planting these trees in Denver with our heavy clay soils and hot lowland weather takes its toll,...

Elm Leaf Pests Handbook

Elm Leaf Pests Homeowners should know that Elms growing in Denver need additional attention. The City has Elm leave pests that feed on elm leaves, causing them to dry up and die. Heavily infested trees are unsightly with brown and skeletonized leaves. Repeated...

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