Why Mosquitoes May Still Be Biting Around Your Backyards After Summer

Late-summer temperatures do not automatically bring mosquito activity to an end. Mosquito Squad Plus of Chicago helps homeowners understand how mosquitoes behave and choose the right Highland Park, IL mosquito control plan for your property.

Mosquito season lasts well into September for Illinois residents, with temperatures staying mild and even hot- especially in the afternoons. The first hard frost will cause a dramatic drop in activity, but until then, the temperatures and rainfall can keep mosquitoes active. Female mosquitoes still seek blood meals when conditions allow, while adults rest in cool, shaded, humid places between periods of activity. So, a warm stretch in September or October will bump up mosquito activity, sometimes allowing them to breed more and linger around yards.

Highland Park Conditions Can Support Late-Season Activity

Highland Park is right along Lake Michigan, keeping the area’s humidity up and also seeing an increase in rainfall from storms coming off the lake. As moisture saturates the area, it may pool in poorly drained yards, left-out buckets or toys, and even clogged gutters. Not every property will have a mosquito problem, but sheltered vegetation and damp pockets can provide attractive resting areas. Rain can also collect in gutters, planters, toys, tarps, birdbaths, and low spots around a yard.

Late-Summer Rain Can Restart Backyard Breeding

A dry spell may make mosquito numbers seem lower, only for activity to increase after several rainy days. This fluctuation of activity makes predicting mosquito behavior and swarms hard. If water is left sitting, even if mornings are cool, warm afternoons can support mosquitoes' continued breeding. Mosquito control starts with the homeowner. Taking the time to walk the yard after rain and emptying containers and checking for drainage issues reduces the places mosquitoes have to breed.

Shade and Leaf Cover Matter, Too

Standing water is a prime breeding place, but adult mosquitoes also need places to rest. Dense shrubs, shaded garden beds, groundcover, and areas with limited airflow may stay cooler and more humid than open parts of a yard. As leaves begin to fall, damp organic material can add to those sheltered conditions. Keeping bushes and other landscaping trimmed back and thinned where appropriate limits areas for mosquitoes to seek shelter.

When Highland Park, IL Mosquito Control Still Makes Sense

Don't stop mosquito control steps when the calendar ticks over to September; mosquitoes don't stop just because it's fall now. Mosquito Squad Plus uses recurring mosquito barrier treatments during the active season. This treatment is recommended to keep on a three-week schedule to help control up to 85-90% of mosquitoes for up to three weeks.

If you have delicate flowers, or just want another treatment option, our natural treatment option uses botanical oils and can be effective for up to 21 days.

Keep Prevention Going Until Conditions Really Change

Late-season mosquito management is easy when working with our Chicago team. We can walk you through options and what pests you might be seeing. Contact Mosquito Squad Plus of Chicago or call (630) 556-8315 for a free quote and information about available mosquito control services for your Highland Park property.