Spring Awakeniing: Why Montreal Bed Bugs Resurge with Warmer Weather

Why Montreal Bed Bugs Resurge with Warmer Weather

Springtime Surge: Montreal’s Seasonal Bed Bug Problem

As the snow melts and temperatures rise in Montreal, so do the chances of waking up with itchy red bites. Bed bugs—Cimex lectularius—aren’t just a winter concern. In fact, spring marks the beginning of their most active season.

Why Do Bed Bugs Come Back in Spring?

Montreal’s fluctuating temperatures during winter tend to slow down bed bug activity. But the first warm weeks of April and May act like an alarm clock for dormant infestations. Warmer homes and increased human activity (like spring cleaning and travel) give them the perfect conditions to breed and spread.

Factors Behind the Spring Resurgence

• Warmth speeds up reproduction: At 21–28°C, bed bugs reproduce faster. One female can lay 200–500 eggs in her lifetime.

• Travel season starts: Airbnb rentals, hotel stays, and second-hand furniture purchases increase—making bed bugs mobile again.

• Humidity levels rise: Spring humidity supports faster molting and egg hatching.

• Building-wide infestations go unnoticed: In multi-unit housing, warmer weather allows bed bugs to migrate between apartments more easily.

Why Is Montreal a Hotspot?

Montreal’s high density of apartment buildings and rental turnover makes it one of Canada’s most bed bug-prone cities. Shared walls, common laundry rooms, and poor insulation provide easy pathways for infestations to spread.

What Can You Do?

• Inspect mattresses and furniture during spring cleaning

• Vacuum frequently, especially in cracks, seams, and corners

• Avoid roadside furniture (no matter how “clean” it looks)

• Call a professional at the first sign of bites or black specks on your sheets