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EAB in Anoka County

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Emerald Ash Borer aka EAB

Dateline March 2015:  the Minnesota Department of Agriculture confirmed Emerald Ash Borer in Anoka county.   EAB was found in an ash tree on private property in the city of Ham Lake.  The infested tree was detected through a call to the MDA’s Arrest the Pest Hotline, which I’ll list again on gardenbite dot com. The hotline allows concerned residents to report suspicious invasive plants and insects, like emerald ash borer. Based on the call, MDA staff was able to visit the site and determine the ash tree in question was infested with EAB.  Anoka County will be put under an emergency quarantine and eventually join Dakota, Hennepin, Houston, Olmsted, Ramsey, and Winona counties in a state and federal quarantine.

EAB damage under bark

EAB damage under bark

MDA Entomologist Mark Abrahamson says the spread of EAB in Minnesota has been slower but it’s still presenting itself.  Emerald ash borer larvae kill ash trees by tunneling into the wood and feeding on the tree’s nutrients. Since its accidental introduction into North America, EAB has killed tens of millions of ash trees in 24 states. The invasive insect was first discovered in Minnesota in 2009. The last county to be quarantined for EAB was Dakota County in December 2014.

EAB larvae

EAB larvae

EAB tree die back

EAB tree die back

The biggest risk of spreading EAB comes from people unknowingly moving firewood or other ash products harboring larvae. There are three easy steps Minnesotans can take to keep EAB from spreading:

  • Don’t transport firewood.
  • Be aware of the quarantine restrictions.
  • Watch your ash trees for infestation.

For more information on the pest and what you can do check out the Minnesota Department of Agriculture EAB

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