Emerald Ash Borer (EAB)
Emerald Ash Borer found on Bloomington’s doorstep
On August 15, 2012, the Minnesota Department of Agriculture found a new infestation of the Emerald Ash Borer (EAB) at Fort Snelling Golf Course. EAB has not yet been detected in Bloomington.
People who have been considering chemical treatment of their ash trees and have not yet done so should reevaluate their ash tree treatment plans as this new infestation is less than 2 miles from Bloomington.
MN Department of Agriculture informational handouts
Don't let its size fool you... the Emerald Ash Borer represents an enormous threat.
About the Emerald Ash Borer
The Emerald Ash Borer (EAB) has been found in St. Paul and at Fort Snelling Golf Course. What does this mean for Bloomington? The City is working on putting in place a program to deal with this tree disease.
Quarantine in effect
The Minnesota Department of Agriculture (MDA) has implemented a quarantine in Hennepin and Ramsey counties that prohibits the movement of the following items out of Ramsey and Hennepin counties:
Information regarding disposal of quarantined ash tree waste can be found at the city's Garbage and yard waste disposal and recycling page.
The Minnesota Department of Agriculture indicates that the active period for the Emerald Ash Borer is May 1st through August 31st. Any pruning or removal of ash trees, branches or stumps should be avoided during this period as doing this may contribute to the spread of the Emerald Ash Borer disease. If ash tree work must be done for safety and hazardous condition reasons the material removed to include the outer 1 inch of the bark/ wood should be chipped on site or it should be transported in an enclosed vehicle to the nearest facility that can process the material. (only the outer 1 inch of bark/ wood harbors the EAB) A list of those approved disposal sites within the quarantine area are listed on the Minnesota Department of Agriculture web page. Pruning and removal of ash trees/ wood may be conducted from September 1st through April 30th.
Insecticide treatment information
Once EAB arrives in an area, it will remain a constant threat to ash trees for many years to come. If you choose to use an insecticide, it is likely that protective treatments will be needed for the rest of the tree's life. Optimal timing for most treatment methods is mid-April until the end of June.
Do I have Emerald Ash Borer? What does it look like?
The above picture offers a general idea of the Emerald Ash Borer's size and appearance.
The MDA has posted a Web page and several informative PDFs on its website to help identify this pest:
City and State response
Photo credit: Howard Russell, Michigan State University, Bugwood.org.
Dave Hanson, Assistant Maintenance Superintendent/City Forester