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Mosquitoes in New Jersey: Bites, Health Risks & Seasonal Control

Mosquito

What Are Mosquitoes?

Mosquitoes are small, flying insects belonging to the family Culicidae. They are best known for their biting behavior, where females feed on the blood of humans and animals to develop eggs. While mosquitoes are part of natural ecosystems, they are considered one of the most dangerous pests in the world due to their ability to transmit diseases.

Are Mosquitoes Harmful?​

  • Bites & Irritation: Mosquito bites cause itchy, red welts that can lead to secondary infections from scratching.

  • Disease Transmission: Mosquitoes are vectors for serious diseases, including West Nile virus, Zika virus, malaria, dengue fever, and encephalitis.

  • Pet Risks: Dogs and cats are at risk of heartworm disease transmitted by mosquitoes.

  • Outdoor Nuisance: High populations make outdoor activities unpleasant and limit the use of yards, patios, and decks.

Mosquito Control​

tiger mosquito

  • Professional mosquito control is the most effective way to reduce populations around homes and businesses.

  • Inspection: Identify breeding sites such as standing water in gutters, birdbaths, and containers.

  • Source Reduction: Remove or treat standing water to eliminate breeding habitats.

  • Barrier Treatments: Apply residual insecticides to foliage, shaded areas, and mosquito resting sites.

  • Larvicides: Treat water sources that cannot be drained to prevent larvae from developing into adults.

  • Ongoing Protection: Seasonal mosquito programs provide continuous coverage during peak months

mosquito

Types of Mosquitoes in NJ

  • Northern House Mosquito (Culex pipiens): Primary vector of West Nile virus in the region.

  • Asian Tiger Mosquito (Aedes albopictus): Aggressive daytime biter introduced from Asia.

  • Floodwater Mosquitoes: Large populations emerge after heavy rains or flooding.

Mosquitoes Appearance​

  • Size: 1/8 to 1/4 inch long.

  • Color: Gray, brown, or black with white or silver markings depending on species.

  • Body: Slender with long legs and a proboscis (needle-like mouthpart) for feeding.

  • Wings: Transparent with fine scales.

Mosquitoes Habitat​

kind pest logo

  • Breeding Sites: Any standing water (ponds, puddles, clogged gutters, birdbaths, old tires).

  • Resting Areas: Shaded vegetation, under decks, and cool damp places.

  • Seasonal Activity: Most active spring through fall, especially at dawn and dusk.

Mosquitoes Diet​

  • Females: Require blood meals from humans, pets, birds, or wildlife to produce eggs.

  • Males: Feed exclusively on nectar and plant juices.

  • Both: Use nectar for energy, making them part-time pollinators.

Mosquitoes Life Cycle​

  • Mosquitoes undergo complete metamorphosis:

  • Eggs: Laid on or near water surfaces.

  • Larvae (Wigglers): Aquatic stage feeding on organic matter.

  • Pupae (Tumblers): Transitional stage in water, non-feeding.

  • Adults: Emerge and begin seeking food and mates within days.

  • The cycle can be completed in as little as 7–10 days under warm, wet conditions.

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