How to Reduce Mosquitoes in Your Ontario Backyard This Summer

Mosquitoes are more than a nuisance in Ontario they carry West Nile Virus, which has been circulating in the province since 2001. In a typical Ontario summer, peak mosquito activity runs from late June through August, with populations spiking after periods of rain followed by warm temperatures.

Understanding the Mosquito Lifecycle

Female mosquitoes require a blood meal to develop eggs. They breed in standing water, needing as little as a bottle cap's worth is enough for larvae to develop. Eggs hatch within 24 to 48 hours in warm conditions, and mosquitoes can complete their full lifecycle in as little as 7 to 10 days. This means even a small amount of standing water on your property can generate hundreds of mosquitoes within a week.

Eliminate Standing Water First

This is the most impactful thing you can do. Walk around your property and empty, flip, or remove: flower pot saucers, children's toys, bird baths (change the water every 2 to 3 days), clogged gutters, tarps and pool covers, buckets and watering cans, and any low spots in your lawn that hold water after rain. Ornamental ponds can be treated with BTi dunks a biological larvicide that is safe for fish, birds, and pets.

How Professional Yard Treatment Works

Professional mosquito control targets the areas where adult mosquitoes rest between feedings shaded shrubs, tall grass, dense vegetation, and the undersides of leaves. XtermaPro Pest Control applies a residual treatment to these resting zones that dramatically reduces adult populations. Treatment typically lasts 3 to 4 weeks and is most effective as part of a seasonal program starting in late June.

Personal Protection During Peak Season

• Use Health Canada-approved repellents containing DEET, Icaridin, or IR3535
• Wear long sleeves and pants during dawn and dusk when mosquitoes are most active
• Install or repair window and door screens
• Use outdoor fans mosquitoes are poor flyers and wind makes feeding difficult
• Avoid scented products when spending time outdoors at dusk

West Nile Virus in Ontario

West Nile Virus is transmitted by Culex mosquitoes that feed on infected birds and then on humans. Public Health Ontario monitors WNV activity across the province each summer. Most people infected experience no symptoms or mild flu-like illness, but a small percentage develop serious neurological complications. Older adults and those with weakened immune systems face higher risk.

XtermaPro Pest Control provides mosquito yard treatment for residential properties across Toronto, Peterborough, Oshawa, and surrounding areas. Call us for a free quote and we can set up a seasonal program that keeps your outdoor space comfortable all summer.