OCMVCD provides a variety of services including mosquitoes, red imported fire ants (RIFA), rats and mosquito fish drop off.

The District uses many different means of controlling mosquitoes. The Orange County Mosquito and Vector Control District's programs are based on scientifically planned management tactics and control strategies that reduce the abundance of vectors in a timely manner.

Did you know? Many mosquitoes breed in small water sources in residential backyards, and they do not fly far from the source. Watch our DIY Solutions videos to help prevent mosquitoes from entering your home.

To meet today's public health challenges head-on OCMVCD needs to advance the science around tools and approaches to better protect public health in Orange County.  A new tool added to the Integrated…

The invasive, black-and-white mosquitoes can lay their eggs individually along the waterline of any container. Take action by tipping out standing water, tossing unused containers, and taking action by wearing repellent.

Are you still experiencing mosquitoes, even though you thoroughly inspected your yard for standing water? A nearby neighbor may perhaps not know that mosquitoes require water to complete their life…

Flea-borne typhus, formerly called murine typhus, is a bacterial disease found primarily in the fleas that live on animals such as opossums, cats, raccoons, and skunks and is transmitted by an infective flea bite.

Most often, West Nile virus (WNV) is spread by the bite of an infected mosquito. Mosquitoes are WNV carriers ("vectors") that become infected when they feed on infected birds. Stay up to date on virus activity by checking our WNV map.

The District has a multifaceted roof rat education program and resource page to help residents deter rats from their property.