There are two mosquito species of concern to Orange County: Aedes & Culex
Aedes is active during the day and prefers to feed on humans. It is small and has black + white stripes. The female Aedes lay eggs singly along the sides of containers, including children’s toys, drip trays for potted plants, and other places where water can gather and be stagnant. Eggs can lay dormant for several years and will hatch when conditions are right and water is present. Aedes can transmit the following diseases: Zika, Dengue, Chikungunya, Yellow Fever, Dog Heartworm.
Culex is active during dawn and dusk and prefers to feed on small mammals. It is a small, brown mosquito. The female culex lay eggs in rafts on the surface of large bodies of organically rich, stagnant water. Common breeding sources include ponds, green pools, gutters. Culex can transmit the following diseases: West Nile virus, St. Louis Encephalitis, Western Equine Encephalitis.
Tip, Toss and Take Action to prevent mosquitoes from breeding and biting.