ASH REMOVAL DEADLINES BY CITY AND BOROUGH - As of 1 September 2018

In an attempt to slow the spread of the pest, ash tree work is restricted by date as follow.

CITY / BOROUGH DATES
POINTE-CLAIRE Between OCT 1 - MAR 14
STE-ANNE-DE-BELLEVUE, BEACONSFIELD Between OCT 1 - MAR 15
DORVAL Between OCT 1 - MAR 15 (permit can be issued before OCT 1 if the case is serious)
BAIE-D'URFÉ Between SEPT 15 - APR 15
PIERREFONDS-ROXBORO, LACHINE, L'ÎLE-BIZARD-SAINTE-GENVIÈVE, DDO, SENNEVILLE, KIRKLAND All year

WHAT IS EMERALD ASH BORER (EAB)?

Emerald Ash Borer (EAB) is a beautiful jewel beetle from Asia that eats the layer of highly conductive tissue under the bark of ash trees to the extent of causing the rapid decline and death of the tree. Unlike in its native country, it has no natural controls in Canada.

It is expected that this pest will kill the majority of ash trees in Montreal within 10 years.

How to identify EAB in ash trees

  • Thinning of the crown area of the tree
  • Shoots on the lower or mid trunk area
  • White flecks or patches on the trunk
  • Bark debris on the ground around the tree
  • Increased wood pecker attention to the tree
  • D-shaped exit holes on the trunk (hard to find)
  • Splitting bark exposing larvae galleries (advanced infestation)

Treatment method

Only one EAB treatment is available in Canada: the use of an injected systemic insecticide called TreeAzin.

Cost of treatment

The cost of this treatment varies based on the diameter at breast height, or dbh (between 5 and 7$ per cm of dbh). It can therefore range from 200$ to more than 1000$ for very large trees. Some municipalities and boroughs currently offer funding programs to cover part of the costs.

Frequency of treatment

The frequency of the injections has been changed from every two years to every year. This expense is likely to continue as long as you want to keep the tree alive, or until the beetle population collapses. Once you stop treatments, the risk of reinfestation will remain. Please note that it is unlikely that municipalities and boroughs will continue subsidizing these treatments indefinitely.

Treatment effectiveness

The long-term effectiveness of the treatment is questionable. Experts say that it may slow the destruction of the ash population, but the end result will be the same. We have personally witnessed the death of many ash trees that had been treated for EAB a year or two earlier.

Royal Tree Service treatment policy

Due to the apparent long-term ineffectiveness of TreeAzin, Royal Tree Service does not offer the treatment. There are other companies who still do. We do our best to offer our clients clarity and certainty.

Removal of ash trees

Ultimately, you will likely have to remove your ash trees. The best option is to get your ash trees inventoried by Royal Tree Service and to develop a strategy. Many homeowners and businesses have numerous trees, which can translate into days or weeks of work. We can define the cost so you can build a budget.

We expect an exponential increase in removals over the next few years, and judging by Ontario’s struggles with EAB, there will be waiting lists of many months to get trees removed in the coming years. The longer a tree stands dead, the more difficult it is to remove due to its increasing brittleness as it dries out.

Royal Tree Service has been preparing for the arrival of EAB for 8 years. We are equipped with cranes, skid steers, large capacity chippers and a large team of skilled arborists. We operate with oversight and training, and have people dedicated to managing the logistics of this complex work.

ASH TREE TREATMENT / REMOVAL SUBSIDIES BY CITY AND BOROUGH - As of February 2018

CITY / BOROUGH EAB TREATMENTS W/TREEAZIN EAB FELLING PERMIT
BEACONSFIELD $3.80 per cm of DBH No compensation $25 per tree, valid for 3 months
BAIE D'URFÉ 50% compensation for the first two trees, maximum $250 per tree For ash trees of 25 cm dbh and more: 50% per tree, maximum $125 per tree Free
POINTE-CLAIRE 50% of cost, maximum $1,500 For ash tress of 25 cm dbh and more: 50% per tree, maximum of $200 per tree Free
DDO TBD $200 per tree, maximum of $1,000 per residence Free
KIRKLAND $500 per tree $500 per tree Free
SENNEVILLE TBD No compensation $25 per tree
STE-ANNE-DE-BELLEVUE TBD No compensation $58
PIERREFONDS-ROXBORO, LACHINE, L'ÎLE-BIZARD-SAINTE-GENEVIÈVE TBD Subsidized only if tree is being replaced: $5 per cm of dbh, maximum of $4,000 per residence Free
DORVAL 50% back 50% of cost, maximum of $1,000 per residence Free
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