Straight Answers
What Arizonans ask when the monsoon rolls in.
Five questions Arizonans type in once the storms start and the bites follow, with an honest answer to each.
1
Why are there so many mosquitoes in Arizona after the monsoon?
Because the storms finally give them water, and the heat speeds everything up. Every monsoon downpour leaves puddles, full pool covers, clogged gutters and soaked planters behind. Water left standing for about a week is enough to raise the next batch, so a busy storm season can turn into a busy mosquito season fast.
2
How can there be mosquitoes in the desert?
Arizona has dozens of native mosquito species, and city life hands them extra water all year. Green pools, irrigated lawns, drip lines, fountains, AC and evaporative cooler drains and backyard planters all hold enough water to breed in. The desert is dry. Most backyards are not.
3
How do I get rid of mosquitoes in my backyard?
In an Arizona yard, the water is usually hiding somewhere you watered on purpose. No single trick clears it, but a few habits stacked together do. Here's what actually works.
Where to start
- Pools and pool covers: Keep the pump running and the water clear. A green pool or a cover holding rainwater can breed thousands of mosquitoes.
- Irrigation: Fix leaking drip lines and stop sprinklers from leaving puddles. If you flood irrigate, make sure the water soaks in fast.
- Gutters and drains: Clear gutters after monsoon storms, and check where your AC and evaporative cooler drain. Both can hold water out of sight.
- 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
- Planters and saucers: Empty them once a week and scrub the sides, where day-biting mosquitoes glue their eggs.
- 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, and report a neglected pool nearby to your county vector control.
4
When is mosquito season in Arizona?
State health officials put the usual peak at April through October, and in the low desert some mosquitoes stay active even longer. Phoenix and Yuma get going around March and run into November. The high country around Flagstaff has a much shorter summer season. Everywhere in the state, the monsoon brings the worst of it. Translation: set your space early and keep it set.
5
What natural mosquito repellent can I use around my dog?
Skip anything that goes on your dog's fur. Mosquito Beads go on the ground instead, where six essential oils, including geraniol, citronella and peppermint, mask the scent mosquitoes follow. The base is biodegradable corn. DEET free, FIFRA Section 25(b) exempt, and pet-friendly.