The new Emerald Ash Borer Management Guide for Missouri Homeowners is now availablemdc.mo.gov/node/30462. The guide includes a 2-page flowchart to assist homeowners in making decisions about emerald ash borer (EAB) management for their trees, a table of available treatments with tips on timing applications, and some important cautions about water quality and pollinator concerns relating to insecticide applications.
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I have an ash tree. What should I do?
EAB will eventually be found throughout Missouri, killing most ash trees not protected with insecticide. However, not all ash trees are good candidates for treatments. The location, health, and form of a tree all play a role in the decision to either remove the tree or to protect it from EAB. It’s important to remember that using insecticides to protect trees from EAB is a long-term commitment that requires periodic treatments over many years. Treatments aren’t recommended until EAB has been found in your county or within 15 miles of your location (see map at eab.missouri.edu). For detailed information on insecticide treatments and a helpful decision guide, refer to the Management Guide.
What should I do if I think I’ve discovered EAB in an ash tree?
If you live in a county where EAB has not been detected (see map at eab.missouri.edu), please report your find by calling the EAB Hotline at 1-866-716-9974 or by filling out the reporting form at eab.missouri.edu. If you live in a county known to have EAB, consult theManagement Guide for more information on managing this pest.
EAB adults are generally seen from mid-May through July. They leave D-shaped exit holes about 1/8” wide. Photo credit: Phil Nixon, University of Illinois
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