Do Mosquitoes Slow Down in the Fall in Louisiana?

LaJaunie's Pest Control By: LaJaunie's Pest Control Calendar Icon September 10, 2025
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Louisiana homeowners look forward to cooler fall weather and fewer mosquitoes. But in Baton Rouge, New Orleans, and nearby parishes, mosquitoes don’t vanish fast. Warm days, regular rain, and standing water keep mosquito populations active through much of the season.

If you live in Baton Rouge, New Orleans, or near a bayou, you’ll still see activity even in late October. Mosquitoes are more than a nuisance. They can spread West Nile virus and Zika virus, so fall mosquito control in Louisiana remains essential.

Understanding how mosquito season shifts in the fall helps homeowners protect their families from itchy bites and health risks.

Key Takeaways

• Mosquitoes in the fall in Louisiana stay active due to warm temperatures and standing water.

• Fall still brings risk of West Nile and other mosquito-borne diseases.

• Reduce breeding by fixing clogged gutters, puddles, and birdbaths.

• LaJaunie’s mosquito control protects Louisiana homes with safe, effective service.

Mosquito Season in Louisiana: Spring to Late Fall

Mosquito season in Louisiana typically starts in the spring and runs through late fall. Warm temperatures and high humidity levels create the perfect environment for adult mosquitoes to thrive. In southern areas, such as New Orleans, mosquito season can extend almost year-round.

Unlike northern states, where cold weather quickly ends mosquito activity, our subtropical climate allows mosquito populations to remain active for extended periods. Even in Baton Rouge, mild autumn temperatures often support mosquito breeding well into November. Continue taking steps to prevent bites throughout football season and beyond.

Why Mosquitoes Stay Active in the Fall

Mosquitoes in Louisiana remain active in the fall because the conditions they need, warmth and water, don’t disappear quickly. When daytime highs stay above about 55–60°F, adult mosquitoes keep looking for a blood meal.

Fall rainstorms also leave puddles, clogged gutters, and stagnant water in low-lying areas, all of which become breeding sites for mosquitoes. Birdbaths, neglected pools, and small containers can hold mosquito eggs and larvae. Female mosquitoes keep laying eggs in standing water, so problems can continue well after summer.

Near bayous or lakes, water and humidity make fall ideal for Culex and Asian tiger mosquitoes. These pests are known carriers of West Nile virus and other mosquito-borne illnesses, so fall control matters.

Health Risks From Fall Mosquito Activity

Just because summer is over doesn’t mean mosquito bites are harmless. In fact, mosquito-borne illnesses often peak late in the season when people let their guard down. West Nile virus is the most common concern in Louisiana, though health officials have reported cases of Zika virus and other illnesses.

Adult mosquitoes can live several weeks, and as long as they find water to reproduce, infestations can continue. Families spending time outdoors in Baton Rouge, tailgating, or attending New Orleans festivals may still be at risk for bites in October and November. Pest control matters in the fall as much as it does in summer.

Preventing Mosquito Breeding Around Your Home

Cut mosquito numbers by removing common breeding sites. Fall is a great time to check for water buildup. Puddles in low spots, clogged gutters, and poorly maintained swimming pools are among the most significant water sources. Even small containers, such as bird baths, flower pots, or pet bowls, can support mosquito larvae if the water isn’t changed often.

Keep grass short and remove debris so mosquitoes have fewer shady resting spots. Addressing these conditions reduces the number of breeding sites and lowers infestations without relying solely on mosquito repellent.

Best Ways to Protect Against Mosquito Bites

When mosquito activity lingers into the fall, prevention becomes just as important as treatment. Wearing long sleeves outdoors, especially in the evenings, can help reduce the risk of bites. Using mosquito repellent products with DEET, picaridin, or lemon eucalyptus offers added protection. When used as directed, they’re safe and work well against common mosquitoes.

If you fish along the bayou or go to games, these steps help you stay comfortable until temperatures drop enough to cut mosquito numbers.

Professional Mosquito Control in Louisiana

DIY steps often aren’t enough. Professional mosquito control brings lasting relief in peak season and into fall.

At LaJaunie’s Pest Control, we combine monthly yard fogging with In2Care stations that target larvae and eggs in standing water. Our technicians also identify breeding sites, ranging from gutters to low spots, and provide clear fixes.

Whether you live near Baton Rouge, New Orleans, or along the bayou, professional pest control helps protect your home and family throughout the year. Our services are safe for children and pets and backed by a retreat guarantee.

Making the Right Mosquito Control Choice for Your Louisiana Home

Mosquitoes may slow down in the fall, but they don’t disappear until cold weather sets in. That means bites and risks can linger well into the season. 

LaJaunie’s Pest Control provides expert service across Baton Rouge, New Orleans, and southeast Louisiana to keep your home comfortable and mosquito-free.

Contact us today to schedule your service.

FAQs

Do mosquitoes go away in the fall in Louisiana?

No. Activity may slow, but mosquitoes often remain active through the fall in Louisiana.

What attracts mosquitoes to my yard in autumn?

Standing water, such as gutters, puddles, birdbaths, and pools, creates breeding sites. Shade and humidity also help mosquitoes stick around.

How can I keep mosquitoes away from my home in the fall?

Dump standing water, trim your yard, wear long sleeves, and use repellents with DEET, picaridin, or oil of lemon eucalyptus. For lasting results, book mosquito control with LaJaunie’s.

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Written By: LaJaunie's Pest Control

Ian Chi is the President and CEO of Simple Pest Management, dedicated to providing families with effective, customer-focused pest control. Based in San Diego, Ian leads a team that prioritizes community bonds and a positive workplace, ensuring homes remain safe and pest-free. With a mission centered on family well-being, Ian believes that "the answer is Simple" for all pest issues.

LaJaunie's Pest Control is a local family-owned business

Serving Louisiana homeowners for over 15 years

Louisiana is our home, and our customers are our neighbors. We were founded in Thibodaux, Louisiana, by Jared and Skye LaJaunie in 2008. We'd love to make you a part of the LaJaunie's Pest Control family. Contact us today to get started.

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