Ever noticed peculiar growths or sudden colour changes on your favourite trees? It might be more than just nature’s quirks—it could be tree fungus at play. Tree fungus identification is a cryptic challenge akin to deciphering forest whispers. It demands a keen eye for signs like abnormal growths, discoloration, bleeding sap, or decay in Ontario’s diverse ecosystem.


In this blog, the team at Croft Tree Experts will explore how to unveil the secrets of these fungal intruders, recognize their familiar faces and discover the crucial steps to safeguard your trees against these stealthy invaders.


Signs of Tree Fungus


Spotting tree fungus isn’t as straightforward as discovering mushrooms in a forest. But keep an eye out for these signs:


Abnormal Growth: Think of your tree’s branches and trunk as its canvas. If you notice peculiar growths, odd lumps, or anything that seems out of the ordinary, like unusual formations on the bark or branches, that could be a signal of a fungal intruder.

Discoloration: Trees have their fashion sense too! But sudden changes in colour, like dark spots, white patches, or any hues that seem unusual for your tree’s usual palette, might be the fungus making its artistic mark.

Bleeding Sap: Trees don’t typically play the role of the weeping willow. Excessive oozing or bleeding of sap could signal an underlying issue, potentially linked to a fungal invasion.

Decay: Soft, crumbly wood, especially around the base or roots, could mean trouble. Think of it as your tree’s health barometer—decaying wood could indicate a fungal presence wreaking havoc.


Identifying Tree Fungus in Ontario


Ontario’s diverse ecosystem provides a home to various tree fungus types, including:


Honey Fungus: This one’s a stealthy infiltrator, attacking roots and causing decay, often targeting older trees. It’s like the silent troublemaker in your tree’s underground world.

Dutch Elm Disease: For elm trees, this disease is devastating. It leads to wilting and yellowing of leaves, turning your once-vibrant tree into a shadow of its former self.

Anthracnose: Picture a stealthy ninja targeting your tree’s leaves, causing dark, irregular spots. It thrives especially in wet conditions, making it a bit of a trickster to deal with.

Black Knot Fungus: A common tree disease caused by the fungus Apiosporina Morbosa. It creates knobby dark or black growths on the branches and trunk.


Read Our Blog: What is Black Knot Fungus? How Do You Treat It?


Game Plan Strategies


When you suspect tree fungus, quick action is key. Here’s what to do:


Consulting an Arborist: Think of a certified arborist as your tree’s superhero. They’re the ones with the diagnostic prowess, capable of unravelling the mystery behind the fungal invasion and suggesting the right treatment.

Practicing Prevention: An ounce of prevention is worth a pound of cure! Maintain your tree’s well-being through proper watering, regular pruning, and ensuring the soil drains well. Healthy trees are better equipped to fend off invaders.

Applying Fungicides: In certain cases, a recommended fungicide can be the shield your tree needs against the advancing fungus. However, it’s crucial to follow expert advice on application to effectively curb its spread.


Croft Tree Experts – Quality Arborist Services in Ottawa

Concerned about potential tree fungus wreaking havoc on your beloved trees in Ottawa and the Valley? Please contact us at Croft Tree Experts, your certified arborist team to unravel the mystery! Our tree fungus identification services and expert examinations help identify risks and diseases, guiding you on the best protection and care strategies for your trees.

Safeguard your green companions with proactive tree care—reach out today and let’s nurture your trees for a healthier tomorrow!