In August I posted about why mosquitoes seemed worse than ever: summer heat plus summer rain makes ideal breeding conditions across Salem, Gloucester and Cumberland counties. A lot of folks figure the problem ends once the weather cools off. It doesn’t. Here’s what’s going on, what the state is saying this fall, and what you can do in your own yard.
Heat Plus Rain Equals Mosquitoes
Mosquitoes need standing water to breed, and they don’t need much of it. One of the biggest backyard troublemakers around here is the Asian tiger mosquito, the small black one with white stripes that bites in broad daylight. Rutgers’ Center for Vector Biology describes it as a container breeder. It lays eggs in tires, flower pots, buckets, cans, rain gutters and ornamental ponds, and even something as small as the finger holes of an old bowling ball has been reported.
According to Rutgers, its larvae can finish developing in 5 to 10 days, depending on temperature and food. That’s why one wet week followed by a hot one can turn a quiet yard into a buzzing one. Rutgers also notes it’s an aggressive daytime biter, with peaks usually in early morning and late afternoon. That lines up with when you’re out doing yard work or firing up the grill.
It’s Not Just the Itch
Mosquitoes can carry West Nile virus. In early October 2026, the NJ Department of Health reported 26 West Nile cases in New Jersey so far this year, including the state’s first confirmed death, and said the virus had been detected in mosquito pools in every county in the state. NJDOH also points out that most people who are infected have no symptoms, but older adults and people with weakened immune systems are at greater risk of severe illness.
The state’s message this fall was clear. As New Jersey’s Secretary of Agriculture put it, “Fall does not mean mosquito season ends.” NJDOH is urging residents to stay alert because mosquitoes are still active. Horse owners should also know that West Nile is a threat to horses, and the state recommends talking to your vet about vaccination.
The Weekly Standing Water Walk
The single best thing you can do costs nothing. NJDOH says emptying or changing outdoor water at least once a week can break the mosquito breeding cycle. The spots they specifically call out:
- Flower pots and saucers
- Pet food and water dishes
- Birdbaths
- Swimming pool covers
- Clogged rain gutters
- Plastic wading pools
- Wheelbarrows
They also suggest checking the less obvious places where water and debris collect, like under bushes, along the outside walls of your house and around the foundation. I’d add tarps, kids’ toys, old tires and the low spot by the downspout. If something holds water and you don’t need it, flip it over or get rid of it.
Protect Yourself, Too
NJDOH’s other recommendations are simple:
- Use an EPA-registered insect repellent.
- Avoid being outdoors at dawn and dusk when many mosquitoes are most active.
- Wear long sleeves and long pants when you can.
- Make sure window and door screens fit well and don’t have holes.
- Cover cribs, strollers and baby carriers with mosquito netting.
Your county mosquito control program also works on mosquito populations in the wider area, so it’s worth knowing they’re there.
Where a Yard Treatment Fits In
Dumping water is the foundation, but when you’ve got a lot of shade, thick shrubs or woods along the property line, mosquitoes will rest in that vegetation during the day and come out when you do. That’s where a professional yard treatment helps. When I treat a yard, I walk the property first, find the breeding spots and resting areas, and focus there with eco-friendly products, applied carefully. I’ll also show you the water sources I find so you can keep them in check between visits. You can read more on our mosquito and tick control page.
Got a cookout, graduation party or backyard wedding coming up? Our outdoor event spraying is meant to keep bugs off the guest list. And if you’ve been noticing nests around the yard while you’re out there, take a look at our wasp and hornet nest removal too.
Let’s Get Your Yard Back
If mosquitoes are keeping you inside, call me at 856-599-9376, Monday through Saturday, 8 to 6. Zero Pests is veteran-owned and local, serving Salem, Gloucester and Cumberland counties, including Vineland and Bridgeton. NJ license #92354B.
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