Thursday, September 13, 2018

EMERALD ASH BORER FOUND IN WASHINGTON and SMYTH COUNTIES



TOWN OF ABINGDON
Abingdon, Virginia


For Immediate Release

EMERALD ASH BORER FOUND IN WASHINGTON and SMYTH COUNTIES
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Invasive insect expected to kill all untreated ash and native fringe trees in our region in 1-3 years.
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The Emerald Ash Borer (EAB), or Agrilus planipennis, is a non-native invasive insect from Siberia that has already killed tens of millions of ash trees throughout the continental U.S.  This pest was officially trapped and identified several weeks ago at various sites in Washington and Smyth Counties.
These metallic green insects (Photo 1) emerge May-August in this region.   Once the adults breed, the eggs are then laid on the bark and after hatching, the larvae burrow inside the bark.
As the larvae feed, they create serpentine galleries (Photo 2) which disrupt the the flow of food and water in the tree.   Some of the best signs of an EAB infestation are the "D" shaped exit holes (Photo 1) the adults leave on the tree and the bark blonding caused by woodpeckers feeding on the insect (Photo 3).  
The first step in managing this pest is to identify any ash or fringe trees on your property.   All untreated ash (Fraxinus spp.) and native fringe (Chioanthus virginicus) trees are susceptible.  
If you would like to save your ash or fringe trees, please contact a local ISA certified Arborist that provides plant health care services.   There are several treatment options available but the most effective option is a trunk injection of emamectin benzoate, which is viable for at least 2 years.
In addition, the Virginia Department of Forestry currently has a grant available to homeowners, non-profits, and municipalities to assist in the cost of EAB treatments.   Their link is:  http://www.dof.virginia.gov/health/EABCostShare_Descriptionof_Application.pdf
For more information, please contact:

Kevin Sigmon
Abingdon Town Arborist
ISA Certified Arborist
Office: 276-492-2135
ksigmon@abingdon-va.gov






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