Straight Answers
What Californians ask when the ankle biters show up.
Five questions Californians type in when the bites start, with an honest answer to each.
1
Why are there so many mosquitoes in California this year?
Most years it comes down to water and heat. A wet winter fills marshes, rice fields and backyard containers, and long, hot summers speed up every new generation. On top of that, invasive day-biting mosquitoes keep turning up in new neighborhoods, so a lot of Californians are getting bitten at times of day they never used to.
2
What are the tiny black and white mosquitoes biting my ankles?
Most likely invasive Aedes mosquitoes, the ones Californians call ankle biters. Unlike the state's native species, they bite during the day, stay low to the ground and can breed in a bottle cap of water. They glue their eggs to the inside of containers just above the waterline, and those eggs can survive dry for months. So dumping a plant saucer is not enough. Scrub it too. Many local vector control districts ask you to report day-biting mosquitoes when you see them.
3
How do I get rid of mosquitoes in my backyard?
California yards hide more water than you'd think. No single trick clears one, but a few habits stacked together do. Here's what actually works.
Where to start
- Plant saucers and pots: Empty them once a week and scrub the sides. That's where ankle-biter eggs stick.
- Gutters: Clear out leaves and debris so rain drains away. A clogged gutter holds standing water for weeks, right over your patio, where you will never see it.
- Hidden water: Check rain barrels, fountains, tarps, pet bowls and puddles under drip irrigation. Anything that holds water for a week can breed mosquitoes.
- Seating areas: Pour Mosquito Beads across the whole area where you sit, right under the chairs and table, so they work where you actually are.
Extra protection
- Green pools: A neglected pool turns into a mosquito nursery fast. Keep it filtered, or report one next door to your local vector control district.
- Fans: Run an outdoor fan on the patio. Mosquitoes are weak fliers and steer clear of moving air.
- Larvicides: Drop a BTI bacteria dunk in ponds or water features you can't empty.
4
When is mosquito season in California?
It depends on where you live. In the Coachella Valley, mosquitoes breed year-round, with peaks in spring and again in fall. Around San Francisco Bay, the salt marsh mosquito makes spring the worst stretch. In Los Angeles, complaints peak in August and September, and the Central Valley builds through midsummer. Translation: set your space early and keep it set.
5
What natural mosquito repellent can I use around my dog?
Look for an essential oil blend that goes on the ground to mask human scent, not on skin or fur. Ours is six essential oils, including geraniol, citronella and peppermint, on a biodegradable corn base. DEET free, FIFRA Section 25(b) exempt, and pet-friendly.