On May 14, 2009, emerald ash borer (EAB) was confirmed as present in the South Saint Anthony Park neighborhood in St. Paul. EAB is a serious invasive tree pest, and consequently a quarantine has been placed on Ramsey, Hennepin, Houston, and Winona Counties to help slow the spread of EAB to other areas. >>See Quarantine Information
EAB is an insect that attacks and kills ash trees. It is spread through transported firewood. The adults are small, iridescent green beetles that live outside of trees during the summer months. The larvae are grub or worm-like and live underneath the bark of ash trees. Trees are killed by the tunneling of the larvae under the tree's bark. Check out this video on the life cyle of the EAB.
EAB is native to eastern Asia but was discovered in Detroit, Michigan, and Windsor, Ontario, in 2002. Indications are it may have been introduced to this area as early 1990. EAB has been spread in ash firewood, nursery stock and possibly other ash materials to a number of new areas. View map of EAB finds in Minnesota to right. Click on the icon to zoom, scroll, and see the most recent updates. View map of EAB finds in Minnesota
EAB kills ash trees. All ash trees are susceptible to EAB and millions of ash trees have been killed in infested areas already. Minnesota has the highest volume of ash trees in the U.S. with almost a billion forestland and urban wood ash trees. The potential economic and environmental impacts of losing these trees is substantial. The cost of removing and replacing a single tree can range from hundreds to thousands of dollars – how many ash trees are in your yard? Here is a guide for Ash tree Identification (PDF: 7.95 MB / 2 pages).
Available material for request in hard copies
Helpful External Links
Minnesota Department of Agriculture (MDA), 625 Robert Street N, St. Paul, MN 55155-2538, firstname.lastname@example.org