Fireworks Aren't the Only Things Exploding this Fourth of July Weekend

Release date: 
Jun 30

~Mosquito population likely to increase due to warm weather and recent rains.

Cotati, Calif.— The 4thof July weekend is fast approaching, and while most people are preoccupied with preparations for barbecues and picnics, the Marin/Sonoma Mosquito and Vector Control District is busy searching for and controlling mosquitoes.

With stagnant water left from recent rains and the anticipated warm weather, there is a high probability of an increase in mosquito production.  “The 4thof July weekend is centered around outside activities especially during dusk, when mosquitoes are most active” said Jim Wanderscheid, District Manager. “It is important that residents protect themselves from mosquito bites by wearing long sleeves and pants, and to apply an EPA registered insect repellent to exposed skin,” said Wanderscheid. EPA registration of repellent active ingredients indicates the materials have been reviewed and approved for efficacy and human safety when applied according to the instructions on the label.  

The Marin/Sonoma Mosquito and Vector Control District in accordance with the Centers for Disease Control recommend repellents that contain one of the following active ingredients:

  • DEET
  • Picaridin (PMD)
  • Oil of Lemon Eucalyptus
  • IR3535

Other ways to protect yourself from mosquitoes and mosquito bites include:

  • Stock permanent water features with mosquitofish (available for free from our District)
  • Be sure to properly screen and/or secure lids on rain barrels or water storage containers
  • Do not over water lawns
  • Clean out bird baths and animal water bowls at least 2 times a week and add fresh water
  • Keep swimming pools and hot tubs properly chlorinated
  • Check lawn ornaments for trapped water from sprinklers
  • Make sure that septic tank lids are properly sealed and vent pipes screened

The Marin/Sonoma Mosquito and Vector Control Districtis an independent, special district committed to protecting public health from mosquitoes and mosquito-borne disease. All programs and services are funded through property taxes and provided to all residents in Marin and Sonoma counties. For more information about us please visit our website at