10/30/2026
BOO! Think cool weather scares the mosquitoes away?🦇🦟
Female mosquitoes feed on blood, making a vampire costume a fitting Halloween disguise for this winter marsh mosquito (Culiseta inornata).
While most mosquito activity in San Joaquin County declines in cooler weather, some local species tolerate cool temperatures and remain active. Cooler weather doesn’t mean every mosquito disappears!
But mosquitoes don’t have to be scary! Keep these bite-prevention habits handy:
🦟 Use an EPA-registered insect repellent when mosquitoes are active. Always follow the label directions.
👕 Wear loose-fitting, layered clothing with long sleeves and pants to help prevent bites.
💧 Dump standing water around your home. Check buckets, plant saucers, toys, and other containers weekly and after rain.
Enjoy the spooky season—and keep up the bite prevention!