Prepare for EAB in Your Yard

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We encourage private property owners to conduct proactive management of their ash trees. Doing nothing will result in a dead tree and required removal. Treating or removing ash trees as soon as possible can save property owners hundreds, if not thousands of dollars, per tree. As ash trees die from EAB they become brittle and more dangerous to remove, increasing the cost.

EAB Management Plan

The first step in preparing your yard for EAB is to determine if you have ash trees on your property.

If you determine that you have ash trees on your property, here are several steps you can follow to create an effective EAB management plan:

  1. Inventory ash trees, tree locations, and condition of each tree. Consider drawing/creating a map.
  2. Determine a budget for ash tree management.
  3. Based on condition and location of trees, determine which trees you would like to save.

A consulting arborist can assist with the above steps. Once these steps are complete, we recommend property owners contact at least two to three contractors for removal quotes. For helpful tips on hiring a contractor, visit our How to Hire a Tree Contractor web page. For an easy-to-use EAB management template, download the City’s EAB Management Plan for Private Properties with detailed instructions (PDF).

  1. Treatment

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Ash trees can be protected with a chemical treatment. Treatment can be used as a preventative measure before trees are infested with EAB or therapeutically if the infestation is caught in the early stages. Trees that are 10” in diameter and in good physical condition are considered ideal for treatment. By the time ash trees show the signs and symptoms of EAB such as woodpecker activity, bark splits and crown dieback, treatment may not be an effective option. Trees showing more than 30% crown decline are no longer good candidates for treatment.

Treatments are injected at the base of the trunk and trees must be re-treated every other year. Cost of treatment is based on the size of the tree and the overall number of trees on the property. This is an ongoing cost, but it can be more cost-effective over the long term versus the cost of removing and replacing the tree. Recent research has indicated you can protect a tree for 20 years for the cost it would take to remove and replace an ash tree. Treatment has the added benefit of protecting and preserving ash trees that provide numerous benefits to homeowners and the community.

The City has created an Ash Tree Injection Program which provides a discounted rate to residents to treat private property ash trees by a City contractor. Request an inspection from Rainbow Treecare, the City’s partner in our program. Download a flyer (PDF) for more information on this program. The treatment must be done every other summer and the price-per-diameter-inch cost has been predetermined based on the contract with the City.

If you would like to a use a different tree care company to help protect your ash trees, be sure they are a Minnesota licensed pesticide applicator. The Minnesota Department of Agriculture’s website can help you find the best tree care company for you.

If you opt to treat the trees yourself, be aware that the available chemical treatments at garden centers are not concentrated enough to protect an ash tree with a trunk diameter greater than 15” (48” circumference). Soil-applied insecticides can get taken up by nearby flowering plants and kill pollinators. In addition, soil-applied treatments should not be used within 25 feet of a storm drain or water resource such as a wetland, creek or lake.

  1. removal
  1. code enforcement
  1. pruning
  1. Plant Trees
  1. Quarantine