It’s great to
        live in Dorval!

It’s great to
        live in Dorval!

ENVIRONMENT

How to Detect the Emerald Ash Borer? What Are the Signs, Symptoms, and Damages?

Unfortunately, the presence of the emerald ash borer can sometimes be very difficult to detect. More so, often times, when signs of the emerald ash borer start showing and symptoms of infestation are visible, the tree is usually already heavily infested and can rarely be salvaged.

Here are some signs of a potential infestation:

  • S-shaped tunnels under the bark (which are larval feeding galleries typically serpentine)
  • Small D-shaped emergence holes
  • Evidence of adult feeding on leaves
  • Premature yellowing of the leaves
  • Dying branches
  • Thinning crown and reduced foliage density and deformed bark areas (or vertical cracks on the trunk)
  • Shoots growing from the trunk
  • Increased woodpecker activity
     
Infested ash tree
S-shaped tunnels
D-shaped emergence holes
Woodpecker

Warning: other diseases or insects can cause similar results. It is recommended to hire a specialist to confirm the presence of the emerald ash borer.

Arboretum
Arboretum
Batteries (Recycling)
Batteries (Recycling)
Community Gardens
Community Gardens
Dorval’s Environment Committee
Dorval’s Environment Committee
Ecocentres
Ecocentres
Ecological Gardening
Ecological Gardening
Emerald Ash Borer
Emerald Ash Borer
Environmental Nuisances
Environmental Nuisances
Environmental Subsidies
Environmental Subsidies
Green Line
Green Line
Purple Martins at Valois Park
Purple Martins at Valois Park
Reuse
Reuse
Tips and Tricks
Tips and Tricks
Tree Planting
Tree Planting
Various Waste Pickups
Various Waste Pickups
Water
Water
Watering
Watering
ENVIRONMENT

How to Detect the Emerald Ash Borer? What Are the Signs, Symptoms, and Damages?

Unfortunately, the presence of the emerald ash borer can sometimes be very difficult to detect. More so, often times, when signs of the emerald ash borer start showing and symptoms of infestation are visible, the tree is usually already heavily infested and can rarely be salvaged.

Here are some signs of a potential infestation:

  • S-shaped tunnels under the bark (which are larval feeding galleries typically serpentine)
  • Small D-shaped emergence holes
  • Evidence of adult feeding on leaves
  • Premature yellowing of the leaves
  • Dying branches
  • Thinning crown and reduced foliage density and deformed bark areas (or vertical cracks on the trunk)
  • Shoots growing from the trunk
  • Increased woodpecker activity
     
Infested ash tree
S-shaped tunnels
D-shaped emergence holes
Woodpecker

Warning: other diseases or insects can cause similar results. It is recommended to hire a specialist to confirm the presence of the emerald ash borer.

Arboretum
Arboretum
Batteries (Recycling)
Batteries (Recycling)
Community Gardens
Community Gardens
Dorval’s Environment Committee
Dorval’s Environment Committee
Ecocentres
Ecocentres
Ecological Gardening
Ecological Gardening
Emerald Ash Borer
Emerald Ash Borer
Environmental Nuisances
Environmental Nuisances
Environmental Subsidies
Environmental Subsidies
Green Line
Green Line
Purple Martins at Valois Park
Purple Martins at Valois Park
Reuse
Reuse
Tips and Tricks
Tips and Tricks
Tree Planting
Tree Planting
Various Waste Pickups
Various Waste Pickups
Water
Water
Watering
Watering

How to Detect the Emerald Ash Borer? What Are the Signs, Symptoms, and Damages?

Unfortunately, the presence of the emerald ash borer can sometimes be very difficult to detect. More so, often times, when signs of the emerald ash borer start showing and symptoms of infestation are visible, the tree is usually already heavily infested and can rarely be salvaged.

Here are some signs of a potential infestation:

  • S-shaped tunnels under the bark (which are larval feeding galleries typically serpentine)
  • Small D-shaped emergence holes
  • Evidence of adult feeding on leaves
  • Premature yellowing of the leaves
  • Dying branches
  • Thinning crown and reduced foliage density and deformed bark areas (or vertical cracks on the trunk)
  • Shoots growing from the trunk
  • Increased woodpecker activity
     
Infested ash tree
S-shaped tunnels
D-shaped emergence holes
Woodpecker

Warning: other diseases or insects can cause similar results. It is recommended to hire a specialist to confirm the presence of the emerald ash borer.

Arboretum
Arboretum
Batteries (Recycling)
Batteries (Recycling)
Community Gardens
Community Gardens
Dorval’s Environment Committee
Dorval’s Environment Committee
Ecocentres
Ecocentres
Ecological Gardening
Ecological Gardening
Emerald Ash Borer
Emerald Ash Borer
Environmental Nuisances
Environmental Nuisances
Environmental Subsidies
Environmental Subsidies
Green Line
Green Line
Purple Martins at Valois Park
Purple Martins at Valois Park
Reuse
Reuse
Tips and Tricks
Tips and Tricks
Tree Planting
Tree Planting
Various Waste Pickups
Various Waste Pickups
Water
Water
Watering
Watering
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