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City of VaughanParks and Forestry
The Impact of EAB in Vaughan
Date: Thursday June 20, 2013
The Impact of EAB in Vaughan
Agenda Emerald Ash Borer (EAB) Signs of Emerald Ash Borer Infestation Impacts of Emerald Ash Borer Location of Emerald Ash Borer City of Vaughan Management Strategy
– Tree Monitoring Program– Ash Trees in Parks and Woodlots– Ash Trees on Private Property– Communication Plan– TreeAzin™– Residential TreeAzin™ Treatment of City-Owned Ash Trees
Estimated that ALL Ash Trees in Vaughan will be impacted within 8-10 years
Emerald Ash Borer – Background Info.
The Emerald Ash Borer is a Wood-boring beetle native toChina, Japan, Korea, Russia, and Taiwan that most likelyarrived through untreated Ash wood used for packing material.
This insect is not harmful to people. It specifically attacks andkills all species of Ash (genus: Fraxinus).
Effects of EAB on Ash Trees
Outer Bark
Cambium
Feeding on the crown
Signs of EAB Infestation
The most characteristic sign of the Emerald Ash Borer is the small “D” shaped emergence holes on the branches & trunk.
Adult insects emerge from these holes to feed within the canopy and mate.
Signs of EAB Infestation
Thinning of the crown (little to no leaves)
The leaves may also become discoloured or yellow
Signs of EAB Infestation
The tree may produce excessive suckers; usually along the main trunk
Signs of EAB Infestation
Extensive woodpecker damage caused from feeding on the larvae beneath the bark
Signs of EAB Infestation
Staining
Vertical splits
Weeping on the bark.
Urban Forest Impacts
Once infested, Ash trees die within approximately three to five years
To date, 1,405 Ash trees have been removed. Once an Ash tree in your neighbourhood is
positively identified with EAB, all Ash trees will be infested.
Preliminary studies estimate approximately 16,700 Ash trees on City boulevards that will require removal in the next eight to ten years.
Impacts on Your Community
City of Vaughan EAB Management Plan
City of Vaughan Management Strategy
1. Perform Inspections Annually2. Identify & Monitor EAB infested trees3. Removal of dead/dying trees4. Establish replacement program based on available
funding5. Communication Plan
City of Vaughan EAB Management Plan
Performing Inspections /Identify & Monitor EAB infested trees
City of Vaughan EAB Management Plan (2011)
City of Vaughan EAB Management Plan (2013)
City of Vaughan EAB Management Plan
From 2011 to the Present:
– From our initial 439 removals in 2011, the department has since identified 1,711 Ash trees that have been affected by EAB. Of those identified Ash trees 1,405 have been removed to date.
City of Vaughan EAB Management Plan
City of Vaughan EAB Management Plan
Removal of Dead/Dying Trees
City of Vaughan EAB Management Plan
EAB In Woodlots Visual inspections along woodlot
edges and areas near walking trails. Hazard trees within the vicinity of
private property or walking trails are removed.
Trees are monitored, identified and removed before they become a hazard.
All cut debris is to remain on site as part of the natural forest ecosystem.
City of Vaughan EAB Management Plan
EAB In Parks Ash trees are monitored and
removed as they die. Replacement trees are added to
the following year’s planting list (pending budget approval).
Ash Trees that have been removed are replaced with Non-Ash Species.
Ash species are not planted in any new parks.
City of Vaughan EAB Management Plan
Ash Trees on Private Property Ash trees on private property are the responsibility of the home owner to
maintain and/or remove.
As per the Private Property Tree Protection By-law (185-2007) all privately owned trees 20 cm in diameter or greater at 1.2 m above grade require a permit to remove. Ash Trees infested with EAB are exempt of all fees.
Residents who believe their privately-owned Ash tree may be infested may apply for a permit which can be found at http://www.vaughan.ca/parksandforestryPermits will be granted pending all components are completed and verified.
City of Vaughan EAB Management Plan
Communication Plan Forestry staff provide information directly to
homeowners that are affected by EAB and answer any concerns they may have.
Information booths at City of Vaughan sponsored events and workshops/seminars will be held throughout the city to provide further information to concerned citizens and answer any questions they may have.
City website is being updated regularly with EAB information and FAQ’s.
Access Vaughan (905) 832-2281 is available to answer further questions residents may have
City of Vaughan EAB Management Plan
Communication Plan
Residents can help by monitoring the health of their private and city-boulevard Ash trees. If there is a significant decline in health, inform the Forestry Department and set up a work order via:
Access Vaughan(905) 832-2281
Hours of Operation:Monday-Friday 8:30 am- 4:30 pm
City of Vaughan EAB Management Plan
Communication Plan For assistance in identifying your
tree as an Ash tree refer to the City of London’s Ash Tree Identification Document at:https://www.london.ca/Trees_Lawns_and_Gardens/PDFs/EAB_identificationguide.pdf
If you need help identifying symptoms of the Emerald Ash Borer refer to the Canadian Forest Service document “A Visual Guide to Detecting Emerald Ash Borer”: http://cfs.nrcan.gc.ca/pubwarehouse/pdfs/26856.pdf
City of Vaughan EAB Management Plan
Communication Plan The Canadian Food Inspection
Agency is the Federal department that handles the regulation of food, prevents the introduction and spread of pests and diseases of plants, animals and their products and eradicates or controls those pests and diseases as required.
Further information about the Emerald Ash Borer can be found on the CFIA website at http://www.inspection.gc.ca/
or call (1-866-463-6017)
City of Vaughan EAB Management Plan
TreeAzin The most commonly used
treatment is TreeAzin™ developed by BioForest Technologies.
Under the right conditions, when injected once every two years, Ash trees have been noted to survive an EAB attack.
The treatment can be expensive and is not a cure.
The city of Vaughan is not utilizing the TreeAzin™ program.
For more information about TreeAzin™ visit: http://www.bioforest.ca/index.cfm
City of Vaughan EAB Management Plan
Residential TreeAzin™ Treatment of City-Owned Ash Trees
The department is currently developing a process to allow residents to treat their city-owned Ash trees
An application form, including an arborist report, is needed to confirm that the tree is suitable for treatment
Allows City to track and monitor which trees have been treated
City of Vaughan EAB Management Plan
Next Steps...
Complete the Ash Tree Inventory in order to prioritize resources for tree removals and to mitigate hazards.
Continue to communicate with residents about the condition of this outbreak as well as working with residents to identify Ash trees with considerable signs of decline.
Continue to work with and share information with other municipalities and York Region
City of VaughanParks and Forestry
Thank you for attending this information session.
