Local vector control programs work year-round to reduce the risks posed by mosquitoes, ticks, rodents, and other disease-carrying pests. Across California, these programs can be led by environmental health departments or are supported through strong partnerships with environmental health professionals.
Environmental health teams bring critical expertise to vector control efforts by addressing the environmental conditions that allow vectors to thrive. From eliminating standing water to evaluating land use and waste management practices, environmental health helps prevent problems before they start—protecting communities from diseases such as West Nile virus and other vector-borne illnesses.
Local programs rely on a science-based approach known as integrated pest management. This coordinated strategy includes monitoring vector populations, removing breeding sources, applying targeted control methods when needed, and educating the public about simple prevention steps they can take at home.
Vector control is most effective when agencies work together. Environmental health departments frequently partner with mosquito and vector control districts, public health departments, and public works agencies to ensure a comprehensive and coordinated response. These collaborations allow communities to respond quickly to emerging threats while maintaining long-term prevention strategies.
At the state level, the California Conference of Directors of Environmental Health (CCDEH) plays an important role in strengthening these local efforts. Representing environmental health leadership across California, CCDEH works to enhance the quality and consistency of environmental health programs statewide.
As environmental conditions evolve and new public health challenges emerge, the partnership between vector control programs and environmental health will remain essential. Together—with support from CCDEH—these programs help keep California’s communities safe, healthy, and resilient.