Norway Maple Tree Problems

Emergency Tree Removal in Pickering

When a mature Norway Maple split during high winds in a quiet Pickering backyard, it didn’t just expose the vulnerabilities of this popular urban tree species — it put a family’s safety and property at immediate risk. This case study explains what happened, why Norway Maples are prone to structural problems, and how Sarginson’s Tree Services safely removed the tree before further damage could occur.

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If you’re a homeowner in Durham Region, Kawartha Lakes,  this real-life example may help you spot issues early — and act before a storm does it for you.

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The Emergency: A Norway Maple Failure Close to Home

Norway Maple Tree Problems include damage to property

This tree removal job began with a call from a Pickering homeowner after a significant wind event. One of the two main trunks of their mature Norway Maple had split apart overnight, revealing a deep vertical crack at the junction point. The split had occurred at what arborists call an included bark union — a structural defect where two limbs grow tightly together without a strong wood connection between them.

The danger was immediate. The damaged limb was now unstable and leaning toward the house. Cracks in a nearby window confirmed the risk: if the rest of the trunk gave way, the consequences could be costly and highly dangerous.

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Assessing the Risks: Structural Weakness in Norway Maples

Norway Maple Tree Problems cracked storm damaged tree in Pickering, Durham Region ONtario

This failure wasn’t random. Norway Maple tree problems often stem from their rapid growth and tendency to develop co-dominant stems — two main trunks competing for dominance. When these grow with included bark, the connection is weak and prone to splitting, especially under wind pressure or heavy rain.

In this case, the tree had not been pruned or monitored in years. The signs had been there — a narrowing V-shaped junction and slight bark ridging. But like many urban trees, it had grown quietly until one storm changed everything.

Beyond structural concerns, Norway Maples in Ontario are also susceptible to:

Verticillium wilt, a soil-based fungal disease that causes dieback

Tar spot, a cosmetic fungal infection that weakens the tree’s health

Leaf scorch, especially during hot, dry summers

Homeowners often plant Norway Maples for their shade, but without regular care, these trees can become liabilities.

Our Response: Safe, Skilled Removal in Tight Quarters

Norway Maple Emergency Tree Removal in Pickering, Durham Region Ontario

Sarginson’s crew responded quickly. First, we stabilised the split trunk with tension strapping and bracing. This prevented further movement and allowed our climber to ascend safely and begin dismantling the upper canopy.
With limited space between the home and a raised deck, precision was key. The removal was carried out using rigging techniques to control each branch’s descent, minimising the risk to the surrounding property. Every cut was planned. Every step was monitored by our certified arborists.

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What Homeowners Can Learn from This Case

Split Norway Maple tree Removal job in Pickering

This situation wasn’t unique. We see variations of it across the region, especially with Norway Maples planted 20–40 years ago in tight suburban lots.

If you have a maple tree in your garden, here are a few warning signs to watch for:

V-shaped trunk junctions (instead of U-shaped)

Cracks or seams in the bark where limbs meet

Dead limbs or sudden dieback

Fungus or discolouration at the base

Spotting problems early can mean the difference between a quick pruning job and a costly emergency removal.

Norway Maple Tree Problems: A Growing Concern in Ontario

Norway Maple Tree Problems - split trunk meant tree had to be removed. Pickering Ontario job

While still common across the province, Norway Maples are slowly being replaced in newer planting plans due to their known structural issues and aggressive root systems. That said, thousands still thrive in residential yards — some in excellent condition, others one storm away from failure.
Call today to have an arborist assess the health of your tree and avoid the need for an emergency storm damage visit later on.

Emergency tree removal in Pickering Ontario

FAQs

Norway Maples are prone to structural issues like included bark and co-dominant stems, which can split under wind stress. They’re also vulnerable to fungal diseases such as Verticillium wilt, tar spot, and leaf scorch, especially in Ontario’s variable climate.

Look for signs like wilting leaves, branch dieback, black spots (tar spot), or discoloured patches. If you’re unsure, a certified arborist can assess whether the issue is cosmetic or something more serious, such as Verticillium wilt.

Tar Spot Maple Tree Leaves

Tar spot appears as small, round, black spots on maple leaves, often with a yellow halo. While it’s usually not fatal, repeated infections can weaken the tree over time.

It depends on the severity and location of the crack. Trees with included bark or co-dominant stems may be braced or pruned, but in some cases, removal is the safest option, especially if the tree is near your home.

Not all fungal growth requires removal. Some are harmless, while others, such as Verticillium wilt, are more severe. It’s best to have a professional inspection to determine the right course of action.

Sarginson's Tree Services Ontario

Think You Might Have a Problem Tree?

If you’re unsure about a Norway Maple or any large tree on your property, don’t wait for a storm to decide for you. Structural defects, fungal infections, and canopy stress are all manageable — if caught early.

Our ISA-certified arborists offer professional tree inspections across Toronto, the GTA, Durham Region, Peterborough, Kawartha Lakes, Haliburton, and Muskoka. Whether it’s pruning, bracing, or removal, we’ll provide you with honest advice and a safe plan moving forward.

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