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How to detect Emerald Ash Borer in Ash Branches

Watch the video above from to see how the branches can be peeled to detect galleries and larvae. 

The Emerald Ash Borer has been found in Colorado. With it’s arrival, many of our urban Ash Trees are threatened by this pest. Early detection of it’s presence is crucial to planning and carrying out control in our community.

Visual surveys of checking trees can be helpful in identifying infected trees, however often, signs are not visible until the trees have been infected for 2 years or longer, giving the bugs plenty of time to increase their numbers.

The best method for early detection is through branch sampling, which is a highly effective method for finding EAB populations before outward signs or symptoms become apparent.

Up to 74% of infested trees, even those that are not showing symptoms, can be found using this simple technique.

Here’s how to do it: You’re looking for larvae under the bark, so plan a branch sample between September and May, then if you can, wait until after October, when the larvae are big, and it’s easy to see the galleries.

Read more about the Emerald Ash Borer, and whether or not you need to treat your Ash trees, click here »

Contact us today if you have any questions or concerns about the Emerald Ash Borer. Call us at 303.232.0666 or send us an estimate request below:

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