Articles

Why Is Elm Pruning Different? Elm trees are an important part of Calgary’s urban forest.  In fact, they make up about 20% of the city’s tree canopy. But elms are vulnerable to Dutch elm disease, a deadly condition spread by the elm bark beetle. If elms are pruned at the wrong time, they can attract […]

Is Winter Really the Right Time to Prune Trees?  When most people think about tree pruning, they imagine it happening in spring or summer when trees are green and full. But did you know that winter is actually the best time to prune trees in Calgary? Not only does winter pruning promote healthier growth and […]

Understanding Tree Risk Assessment A Tree Risk Assessment is a detailed inspection performed by a qualified tree risk assessor to evaluate the health, structure, and safety of your trees. At LECM, our ISA Certified Arborists use this process to identify potential hazards — such as weak branch attachments, decay, disease, or root damage — before […]

What It Means to Be an ISA Certified Arborist At LECM, we’re proud that our arborists hold certification from the International Society of Arboriculture (ISA) — the international standard for professionalism and technical expertise in tree care. An ISA Certified Arborist has demonstrated a deep understanding of the science of arboriculture through rigorous training, examination, […]

Why is winterization important in Calgary & area? Winterization is the process of preparing your commercial irrigation system for freezing temperatures. It typically involves shutting off the water supply, draining the lines, and using compressed air to “blow out” any remaining water. This prevents costly damage to pipes, valves, and sprinkler heads caused by frozen […]

In Calgary, June isn’t just the beginning of summer — it’s also peak storm season. With unpredictable weather patterns bringing heavy rains, high winds, and occasional hail, this time of year puts significant strain on the trees that line our commercial properties, pathways, and parking lots. As a commercial property manager or owner, understanding the […]

Removing a large tree is never a simple task—but doing so within the tight quarters of a condo complex brings an entirely different level of complexity. As professional arborists, we’re often asked why tree removals in these settings take more time, planning, and coordination than those in open residential spaces. The short answer? Safety, access, […]

When it comes to maintaining a beautiful, functional, and sustainable outdoor space in a commercial setting, mulch is often the unsung hero. At LE Construction & Maintenance, we recently completed a large mulch project at Township in southeast Calgary—a thriving outdoor retail center preparing for another busy summer season. While the fresh, clean look of […]

As we head into another growing season, many property owners and managers in Calgary are looking for ways to reduce water usage without compromising the health and appearance of their landscapes. With new municipal regulations, rising utility costs, and a growing emphasis on sustainability, now is the perfect time to consider upgrading to a smart irrigation […]

Residing in Calgary, we deal with an extreme arid climate that has a domino effect on all the living organisms that plant their roots into the soil. Being “arid” means that we have a very low precipitation rate, making it a dry place to be. Trees need an adequate amount of moisture to ensure a […]

Have you ever looked at the trees on your property and noticed a brown/green/black swelling on the branches? If you have, you may be looking at the fungal disease which is called “Black Knot”. Black Knot (Apiosporina morbosa) can affect all varieties in the Prunus genus or better known as Cherry trees. Although you see […]

An Upgrade that Pays For Itself As part of our commitment to helping you thrive, we recommend an upgrade to your sprinkler system that will more than pay for itself in convenience and cost savings. Irrigation system technology has come a long way in the last few years. These technological advances have been focused on […]