Emerald Ash Borer (Agrilus planipennis)
What is it?
- Invasive and highly destructive insect.
- Attacks and kills all Ash trees native to North America.
- Brought to Canada unintentionally through wooden packing crates from Asia in the early 1990s.
- Identified as an invasive alien species by the Canadian Food Inspection Agency (CFIA) for Halton in 2009.
- Has the potential to eliminate ALL of our Ash trees (5-10% of our urban forest*).
- A large section of Ontario and Quebec is under quarantine.
- Movement of ash wood products outside of the regulated area is prohibited (click here for a map).
*An urban forest refers to all of the collective varieties of trees that we have growing on our streets
Signs of Emerald Ash Borer
- Bark damage – vertical cracks in the bark
- Discolouration or yellowing of leaves
- D-shaped holes on bark and braches
- Crown dieback - loss of leaves in the tree canopy
- Shoots growing from trunk and branches of the tree
- Increased presence of woodpeckers feeding
Municipal Ash Tree Management: What we do?
- EAB monitoring with traps
- Branch sampling
- Removing and replacing dead Ash trees
Town staff is performing on-going branch sampling on municipal Ash trees and have installed hanging bright-green invasive insect sticky traps to track the presence and movement of the EAB. The summer 2014 EAB trap locations are listed below and the traps were removed at the begining of September with the following results.
|Georgetown||Number of EAB Found|
|Bovis Park on Wallace Avenue||4|
|Mill Street West||2|
|Prospect Park A/F Elizabeth Drive||6|
|Credit Street Bulb||8|
The remaining street Ash trees can be considered “standing dead” as they will all succumb to the EAB over the next few years and the trees will be removed and replaced as time and budget allows.
See the “Emerald Ash Borer Management Strategy” Council Report 2012-0034 from October 15, 2012, for more information.
If you suspect EAB on a tree located on Town property, please contact Public Works at 905-873-2601 Ext. 2603 to request service.
If you suspect a tree on your property is infested, or are interested in treating a tree on your property, please call a certified arborist for more information.
Further information can be found by following these links:
- Halton Region
- Canadian Food Inspection
- EAB presentation made to Council on March 5th, 2013
- Credit Valley Conservation
- Infomation for Land Owners
- Countryside Stewardship Connection
- Eastern Ontario Model Forest