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Diseases Carried by California Mosquitoes

Posted by Mosquito Squad Plus

August 5, 2026

Diseases Carried by California Mosquitoes

Why Are Mosquitoes a Concern for San Pasqual Residents?

Summer promises sunny days and fun outdoors, but it also brings the promise of pests such as mosquitoes. Mosquitoes in San Pasqual create stress for residents as threats and cases of West Nile Virus, Zika, Dengue, and other viruses continue to grow.

West Nile Virus is known to be carried by the common Culex mosquito found in San Pasqual. These mosquitoes are known to breed in stagnant pools, agricultural runoff, and backyard gutters. While the majority of people have no symptoms, those that experience the symptoms of West Nile Virus can struggle to address it. A few symptoms include heavy fever, headaches, nausea, and even mild skin rash. Additionally, there are cases of West Nile Virus which can lead to neuroinvasive diseases such as meningitis and encephalitis. If you experience tremors, stiff neck, or paralysis, seek immediate medical attention.

Dengue and Zika are other common viruses known to affect San Pasqual neighborhoods. These two viruses are carried by a species of Aedes mosquitoes, with Dengue being the more common of the two. Symptoms of Dengue include intense pain behind the eyes, within joints, and deep within muscles. A distinct rash typically develops and spreads along limbs and the torso while also being accompanied by a high fever. Those with severe Dengue can experience severe abdominal pain, vomiting, and bleeding from the gums or nose. Seek immediate attention if you experience any of these symptoms.

Lower Your Disease Risks by Reducing Mosquito Activity at Your San Pasqual Home

In order to reduce the amount of mosquito activity at your property, it’s important to address the areas which mosquitoes are drawn to. Mosquitoes prefer areas of cool shade, damp soil, and humidity in order to reduce the drying effects of the summer sun. San Pasqual creates the perfect environment as garden beds, manicured lawns, and dense tree canopies contribute to the ideal conditions for mosquito growth. Trim the perimeters of your home that border wooded lots, local creeks, or areas of dense vegetation. This will help to limit the transition zones that mosquitoes use to enter neighboring yards.

Dump standing water from flower pot saucers, covered patio furniture, and children’s toys that are left outside after a rainfall. These small areas create small pools of water where mosquitoes can lay between 100-300 eggs at a time. Clear gutters and downspouts to ensure proper drainage and reduce areas where water pools and stagnates. Consider allowing the lawn and garden to dry out more in between waterings, as the damp blades and soil allow mosquitoes to rest and avoid drying out. Lastly, consider using mosquito dunks in strategic areas around your property in San Pasqual. Mosquito dunks contain a bacteria which mosquitoes feed on, ultimately reducing their ability to fully complete their hatching cycle.

Learn more ways to reduce mosquito activity at The 7 T’s of Mosquito Control, and check out our dedicated Pasadena blog for more helpful tips and insights.

Professional Mosquito Control Services in San Pasqual

The traditional mosquito control treatment offered to San Pasqual residents is Barrier Treatment Plus. This potent insecticide is designed with a blend of ingredients which binds to the surface to repel mosquitoes and disrupt the cycle of breeding. Through targeted treatments, our team will use your tailored mosquito control plan to reduce mosquitoes by 85-90% and control their presence for up to 21 days at a time. For those interested in environmentally conscious options in San Pasqual, we offer a natural treatment blend which reduces and repels mosquitoes for up to 14 days.

For Reliable Mosquito Control in San Pasqual, CA Near You

Ready to take back your San Pasqual yard from mosquitoes? Call Mosquito Squad Plus of Pasadena at (213) 238-5564 or contact us online for a free quote.

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