Common Pests in Calgary and How to Identify Them

Calgary is a beautiful city known for its stunning landscapes and vibrant community. However, like any other urban area, Calgary is not immune to pest problems. Pests can be a nuisance and harm property and human health. In this article, we will explore the common pests found in Calgary and guide how to identify them.


Pests can invade homes, offices, and outdoor spaces, causing damage and spreading diseases. It is essential to identify common pests in Calgary to address infestations promptly. Here are some of the most frequently encountered pests in the area:


Ants are tiny insects that form colonies and can quickly become a nuisance. Common ant species in Calgary include carpenter ants, pavement ants, and pharaoh ants. Carpenter ants can cause structural damage to wooden structures, while pavement ants and pharaoh ants are often found indoors in search of food.

Bed Bugs

Bed bugs are small, reddish-brown insects that feed on human blood. They are notorious for infesting mattresses, furniture, and other upholstery. Bed bug bites can cause itching and allergic reactions. Look for rust-coloured stains on bedding or small bite marks on your skin to identify their presence.


Cockroaches are resilient pests that thrive in dark, moist areas. German cockroaches and American cockroaches are the most common species found in Calgary. They can contaminate food, spread diseases, and trigger allergies. Cockroaches emit a distinctive musty odour, and their presence is often accompanied by droppings and shed skin.

Wasps and Bees

Wasps and bees are beneficial insects for the environment but can become problematic when building nests near human dwellings. Calgary is home to various wasp species, including paper wasps and yellow jackets. Bees, such as honeybees and bumblebees, are also prevalent. Be cautious around their nests and seek professional help for removal if necessary.


While most spiders are harmless, some species in Calgary, such as black widows, can pose a threat. Spiders typically prefer dark corners and undisturbed areas. Look for spider webs and egg sacs as indicators of their presence. If you suspect a venomous spider infestation, contacting a pest control expert is best.

Mice and Rats

Mice and rats are common rodents that can cause significant property damage and transmit diseases. They can squeeze through small openings and are excellent climbers. Signs of their presence include chewed wires, gnaw marks on furniture, and droppings. Take immediate action if you suspect a rodent infestation.


Squirrels may seem harmless and adorable in the wild, but they can become pests when they nest in attics or chew on electrical wiring. Look for entry points and listen for scratching noises to identify squirrel infestations. Seek professional help for squirrel infestations and their safe removal, as they can be territorial and cause damage if confronted.


Although often admired for their beauty and songs, birds can become pests when they nest in or around buildings. Pigeons, sparrows, and starlings are common bird species found in Calgary. Their nests can block vents and gutters, leading to potential damage. Bird droppings can also be unsightly and carry diseases. Use bird spikes or netting to deter them from nesting in unwanted areas.


Termites are destructive pests that feed on wood and can cause significant damage to buildings if left untreated. Calgary has a relatively low risk of termite infestations compared to other regions, but they can still be a concern. Look for discarded wings, mud tubes, or hollow-sounding wood as signs of termite activity. If suspected, contact a pest control professional for an inspection.


Mosquitoes are annoying and potential carriers of diseases such as West Nile virus. They breed in stagnant water and are most active during warmer months. Protect yourself by wearing insect repellent, screens on windows and doors, and eliminating any standing water sources around your property.


Fleas are small, blood-sucking insects that commonly infest pets but can also bite humans. They can be brought indoors by pets or wildlife. Look for signs of flea activity, such as pets scratching excessively or small dark specks on bedding and furniture. Treat your pets with flea control products and wash bedding thoroughly to eliminate infestations.


Flies are a nuisance and can transmit diseases. House flies, fruit flies, and cluster flies are common in Calgary. They are attracted to food sources and breed in unsanitary conditions. To deter fly infestations, implement proper sanitation practices, such as keeping trash bins tightly sealed and cleaning up spills promptly.


Moths, particularly clothes moths, can cause damage to fabrics, carpets, and stored items. They lay eggs on natural fibres and feed on them in larval form. Look for small holes or damage in clothing and visible cocoons as signs of moth infestations. Regularly clean and store clothing properly to prevent moth-related damage.


Identifying common pests in Calgary is crucial for effective pest management. By promptly addressing infestations, you can minimize property damage and protect the well-being of your family. If you’re uncertain about pests or need pest control assistance, it’s advisable to consult a professional pest management company in your area.


  1. Q: Are pests a year-round problem in Calgary? A: While some pests are more active during specific seasons, pests can be a concern throughout the year in Calgary.
  2. Q: Can I get rid of pests on my own? A: Some minor infestations can be managed with DIY methods, but for significant or recurring problems, it’s best to seek professional pest control services.
  3. Q: How can I prevent pest infestations in my home? A: Maintain cleanliness, seal entry points, eliminate standing water, and store food properly to reduce the risk of pest infestations.
  4. Q: Are all pest control methods safe for pets and children? A: Professional pest control companies employ safe methods for pets and children. However, it’s important to follow instructions and precautions provided by the experts.
  1. Q: Can I prevent pests from returning after treatment? A: While no method can guarantee complete prevention, following good sanitation practices, sealing entry points, and addressing any moisture or food sources can help reduce the likelihood of pests returning after treatment.

In conclusion, understanding the common pests in Calgary and identifying them is essential for effective pest management. Whether it’s ants, bed bugs, cockroaches, or any other pest, early detection and timely action can help prevent infestations from escalating. Consult Ecopest pest control for severe or persistent pest problems. By taking proactive measures and maintaining a clean and well-protected environment, you can minimize the impact of pests on your property and enjoy a pest-free living space.