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Writer's pictureAaron Cull

How to Know if a Tree Needs to Be Removed: A Calgary Guide

Trees are vital to the beauty and health of Calgary’s landscapes, but sometimes tree removal is necessary to ensure safety and maintain the integrity of your property. Understanding when a tree needs to be removed can be challenging, especially with Calgary's diverse environmental conditions and tree species. Here’s how to identify whether a tree in your yard might need to be removed, along with key indicators and local considerations specific to Calgary.


General Signs Your Tree May Need Removal

  1. Dead or Dying Tree: If you notice significant dead branches, a lack of leaves during Calgary’s growing season, or large areas of decay, it may be time to consider tree removal. Dead trees can pose significant risks, especially during Calgary’s winter storms.

  2. Structural Damage: Cracks in the trunk, a noticeable lean, or root damage are clear signs that your tree may be unstable and hazardous. In Calgary’s urban areas, this could mean a risk to nearby properties or power lines.

  3. Fungal Growth: Mushrooms or other fungi growing around the base of the tree often indicate internal decay. This is particularly important for trees in Calgary, where fluctuating moisture levels can contribute to fungal problems.

  4. Insect Infestation: Pests such as bark beetles or emerald ash borers are common in Alberta. If you see signs of infestation, like unusual holes in the bark or sawdust around the base, it may be time to remove the tree to prevent further damage to your landscape.


Species-Specific Signs to Watch For in Calgary

1. White Spruce & Black Spruce (Picea glauca & Picea mariana):

  • Spruce Budworm Infestation: If your spruce trees are heavily defoliated, they may be weakened and in need of removal to prevent collapse during heavy Calgary snowfalls.

  • Root Rot: Yellowing needles, stunted growth, or fungi at the tree’s base are signs of root rot, common in Calgary’s poorly drained soils.


2. Lodgepole Pine (Pinus contorta):

  • Mountain Pine Beetle Infestation: Look for red needles, pitch tubes (small resin masses), or sawdust. These are signs of infestation that can lead to the tree's death, making removal necessary to protect other trees in the area.

  • Drought Stress: Browning needles and dieback can indicate severe drought stress, a common issue during Calgary’s dry summers.


3. Trembling Aspen (Populus tremuloides):

  • Heart Rot: If you find hollow trunks, large cavities, or significant dieback, the tree may be structurally compromised and pose a risk.

  • Poplar Borer: This pest weakens the tree’s structure, making older or stressed trees particularly vulnerable in Calgary.


4. American Elm (Ulmus americana):

  • Dutch Elm Disease: Look for wilting, yellowing leaves, and brown streaks under the bark. Calgary has strict regulations to manage this disease, and infected trees often require prompt removal.

  • Elm Scale: Severe infestation weakens the tree, leading to possible removal if the tree’s health declines.


5. Manitoba Maple (Acer negundo):

  • Weak Wood Structure: This species is prone to limb breakage. Trees with large dead branches or structural issues may need to be removed, especially in areas where falling limbs could cause damage.

  • Cankers: Dead tissue on the bark can girdle the tree, leading to its death and necessitating removal.


When to Consult a Calgary ISA Certified Arborist

It’s crucial to involve an ISA Certified Arborist like Evergreen LTD when assessing tree health, particularly for species-specific issues common in Calgary. An arborist can provide a detailed evaluation, considering the specific species, extent of damage, and the tree's location relative to structures and utilities.




Environmental and Safety Considerations in Calgary

  • Proximity to Infrastructure: Trees near power lines, buildings, or roads might need removal if they pose a safety risk, especially in Calgary’s dense urban environment.

  • Storm Damage: Calgary’s severe storms can cause significant damage to trees. If your tree has large broken branches or a split trunk, it’s essential to evaluate it for potential removal.


Conclusion

Deciding whether a tree needs to be removed is a critical aspect of maintaining a safe and beautiful landscape in Calgary. By recognizing the signs of disease, structural issues, or environmental stress, and consulting with a professional arborist, you can ensure the health of your property. Evergreen LTD Cares deeply about trees, and we always strive for a recovery and return to health plan if we believe your tree has more live to live. For expert tree assessment, or tree removal services in Calgary, trust Evergreen LTD to provide thorough assessments and safe removal, keeping your landscape vibrant and secure.

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