A vector is any arthropod, insect, rodent or other animal of public health significance capable of harboring or transmitting the causative agents of human disease (e.g. malaria, plague) to humans. Under certain circumstances, insects or other arthropods that cause human discomfort or injury, but not disease, are sometimes referred to as vectors.

The Greater Los Angeles County Vector Control District provides services to 36 cities and unincorporated areas of Los Angeles County to control vectors such as mosquitoes, midges and black flies. This is done by using an Integrated Vector Management (IVM) strategy that includes conducting surveillance, controlling sources and vectors, and public education. The result is a healthier community with a lower risk for disease outbreaks.

While the District conducts regular surveillance and control measures throughout the County there are a number of things homeowners can do around their homes to protect themselves from vectors.

For more information about other vectors and insects like rodents, bees, fire ants, ticks, and fleas, you may find more information here: Resource Page