How Do You Treat Ash Trees for EAB?
We guess that Denver residential and commercial property owners are tired of hearing about the Emerald Ash Borer (EAB). It is like, Where’s Waldo – where are the bugs? However, City forester offices across the Denver metropolitan area expect residential and commercial property owners to manage their trees for EAB properly. 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.
Quick Facts from Colorado State University Extension Service
What does the EAB do?
- Kills ash trees!
- Larvae feed under the bark, eventually girdling the tree and cutting off nutrients.
- Trees are killed within 2-4 years of first symptoms, even previously health trees.
- Trees of all sizes can be attacked, from 1/2-inch saplings to the largest mature trees.
- This insect is very difficult to detect because it is under the bark and the adults are only around from May to September.
- The best time to treat Ash trees is in June and July.
EAB in Denver
The green jewel beetle arrived in Boulder in 2013 and is now on the move along the Front Range. There are confirmed sightings in Boulder, Broomfield, and Westminster. Arvada confirmed its presence within its city limits in 2020. It is just a matter of time before the insect heads south and lands in Denver and its southern suburbs. It’s time to start Emerald Ash Borer (EAB) treatment now because once discovered in Denver, it might be too late to save Ash trees not already treated. On top of that, it might be next to impossible to get a treatment appointment since over a million Ash trees grow in the Denver area. Click here to find out more information about Emerald Ash Borer.
Ash Trees Worth Saving?
Mature Ash trees are valuable and need proper EAB treatments since they have zero immunity against this borer. Ash tree management means treating mature trees and removing marginal trees from yards. Ross Tree is a licensed Colorado Department of Agriculture Commercial Pesticide Applicator for Emerald Ash Borer treatment. We offer several effective EAB treatment options for controlling this beetle and its larvae. Residential and commercial property owners with Ash trees must ask themselves how much they value them. Ash tree value comes from the following:
- A mature tree landscape adds 5 to 10 percent to a property’s value. Denver’s real estate market has shot up substantially since the 1990s, so the worth of mature trees in a yard equates to the cost of a new automobile.
- If their trees are lost, most homeowners will miss their trees’ beauty and shade.
- Ash Borer treatment is less expensive than removal. To remove a large tree, Ross Tree may need to use a crane and pull a street closing permit, dramatically increasing removal costs.
EAB Treatment Options
Ross Tree recommends using a systemic bark spray up to five feet above the ground for young Ash trees. We prescribe trunk injections for mature trees using a tree’s vascular system to distribute the product throughout the tree. The insects’ larvae or adults die when they chew on the tree’s nutrient-conducting tissues or leaves. Trunk injections are cost-effective because they last two years and are environmentally friendly. Click here for an in-depth discussion on the benefits of systemic insect control.
Our Trees look terrific!!! Your men were so nice and such hard workers. They did a great job and cleaned up nicely. It was a pleasure to have them here.
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