In May 2018, the Minnesota Department of Agriculture (MDA) confirmed an Emerald Ash Borer (EAB) infestation in Burnsville. The discovery was made in the area of McAndrews Road and 139th Street, in the central part of Burnsville. A map of infested areas can be found on the MDA's EAB Status Map (zoom in to see locations). Most of Burnsville is now considered "generally infested" by the MDA.
Property Owners Encouraged to Take Action Now
Property owners are responsible for trees on their property. Left unprotected, ash trees will be killed by EAB.
If you have one or more ash trees, you should consider whether you want to save or remove them. This Decision Guide can help you determine the best course of action for your ash tree(s). You can also consult a professional arborist to examine your trees. The University of Minnesota offers advice on "How to Hire a Professional Arborist."
OPTION 1: Removal
If an ash tree is unhealthy or you don't plan on treating it, then the tree should be removed following Minnesota Department of Agriculture guidelines for EAB-infested areas. These guidelines call for ash tree removal during the EAB Dormant Season, which is October 1 - May 1.
Removal during the EAB Active Season (May 2 - September 30) is not recommended because of the potential spread of EAB as the tree is disturbed or wood is moved around. If removal is necessary during the Active Season, special precautions should be taken such as chipping the wood on site or enclosing the wood during transport.
If removal of an infested ash tree is delayed, the costs to remove that tree are likely to increase because it’s more dangerous to remove an ash tree heavily infested by EAB. If hiring out for tree removal, residents must hire a City-licensed tree contractor.
OPTION 2: Pesticide Treatment
If an infestation is caught early in an otherwise healthy ash tree, an appropriate pesticide treatment will kill EAB and save the tree. Residents interested in this method should hire a City-licensed tree contractor with a commercial pesticide applicator’s license. Residents are responsible for the full cost of treatments for private ash trees.
The City recommends a trunk injection method for applying pesticide treatments. The standard trunk-injected EAB treatment will protect trees for two years. Learn more about pesticide treatments by reading the MDA's EAB: Homeowner's Guide to Selection, Use, & Environmental Protection.
Learn More about EAB
Questions? Call the City of Burnsville Forestry Department at (952) 895-4508