Calgary's Most Common Fall Pests and How to Deal with Them

As the leaves change color and temperatures drop, homeowners in Calgary must be on the lookout for various pests seeking refuge indoors. During September and October, several pests become particularly problematic as they search for warm, sheltered environments to overwinter. Here’s a closer look at the pests to watch out for and how you can protect your home.
Rodents
When the weather cools, rodents such as mice and rats start to invade homes. These small mammals are not just a nuisance but can also pose serious health risks. Rodents can carry diseases such as Hantavirus and Salmonella and are known to cause significant property damage by chewing through wires, insulation, and wood. According to the National Pest Management Association (NPMA), rodents invade an estimated 21 million homes each winter. Additionally, they are responsible for up to 25% of house fires attributed to "unknown causes" due to their tendency to gnaw on electrical wiring.
Spiders
With over 600 species of spiders in Canada, it's no wonder these eight-legged creatures are a common sight in homes during the fall. While most spiders are harmless and even beneficial by controlling other insect populations, their presence can be unsettling. A study from the University of Calgary found that spider activity increases significantly in homes during the fall months as they seek warmer environments. On average, homeowners may encounter 10 to 15 spiders in their homes during peak seasons.
Boxelder Bugs
Boxelder bugs are another common fall invader. These black and red bugs are often found around windows and doors, seeking entry to escape the cold. While they don't cause significant damage, they can stain surfaces and become a nuisance. Boxelder bugs are among the top five pests reported by Calgary homeowners in the fall.
Cluster Flies
Cluster flies resemble house flies but are typically found in attics or upper rooms of homes during the fall. They are sluggish and tend to gather in large numbers, making them a notable pest problem. Cluster flies account for nearly 50% of fly infestations in homes during the fall and winter months.
Stink Bugs
Stink bugs are aptly named for the odor they emit when disturbed or crushed. These pests seek indoor environments as the weather cools, and their presence can be both a nuisance and a potential source of damage to indoor plants. A report from Rutgers University indicates that the brown marmorated stink bug has spread to 44 states and 4 Canadian provinces, including Ontario, Quebec, British Columbia, and Prince Edward Island. It poses significant risks to both homes and agriculture.
Tips for Protecting Your Home from Fall Pests
To protect your home from these fall pests, consider the following tips:
- Seal Entry Points: Check for and seal cracks and crevices around windows, doors, and the foundation.
- Screen Windows and Doors: Ensure all windows and doors are properly screened and close tightly.
- Reduce Moisture: Fix any leaks and use dehumidifiers in damp areas like basements.
- Clean Up: Keep your home clean and clutter-free, especially in storage areas.
- Store Firewood Away from Home: Keep firewood at least 20 feet away from the house to prevent pests from hitching a ride indoors.
Don’t Wait - Prepare for Fall Pests Now!
Don't let fall pests make your home their winter retreat. For professional help controlling pests and preventing seasonal infestations, contact Innovative Pest Solutions. Our team of experts is ready to provide customized solutions to keep your home pest-free all year round.
Sources:
National Pest Management Association
University of Calgary Study on Spiders