Late Spring Rain Followed by Warm Weather Increases Mosquito Activity


A message from the Sacramento – Yolo Mosquito & Vector Control:

Late spring rain leaves behind stagnant water that creates the ideal mosquito breeding conditions and the Sacramento-Yolo Mosquito and Vector Control District reminds the public to “drain after the rain” to prevent mosquitoes!  Warmer temperatures expected for the weekend and continuing into next will make the perfect conditions for mosquitoes to breed and thrive in areas that have stagnant water from the recent rain.  “Rain followed by hot temperatures gives mosquitoes a jump start, we want to ensure that all residents are being proactive and doing everything they can to prevent mosquitoes from breeding on their property,” said Gary Goodman, District Manager. “Even small amounts of stagnant water in flower pots, old tires, buckets, and other outdoor containers can easily become a mosquito breeding source, so we encourage you to inspect your yard this weekend and dump out any water you may find,” added Goodman. Since summer is around the corner and temperatures will be on the rise, prevention efforts continue to be critical.

Residents may visit to subscribe to mailing lists to receive email notifications for upcoming mosquito treatments by zip code. To sign up, go to Spray Notifications on the website.

To report any stagnant water, a neglected pool or request mosquitofish for your pond and fountain please call 1-800-429-1022 or fill out a service request online at

This Memorial Day Practice the District D’s of Mosquito Prevention:
DRAIN standing water that may produce mosquitoes.
DAWN and DUSK are times to avoid being outdoors.
DRESS appropriately be wearing long sleeves and pants when outside.
DEFEND yourself by using an effective insect repellent.  Make sure to follow label directions!
DOOR and window screens should be in good working condition.
DISTRICT personnel are also available to address any mosquito problems. Call them at 1-800-429-1022 or visit

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