Mosquitoes that can transmit WNV breed in aquatic environments like ponds or other sources of stagnant water such as roof gutters, bird baths, and swimming pools.
You can minimize mosquito habitat in your landscape by:
- Cleaning rain gutters and downspouts to remove debris.
- Sealing rain barrels. Keep all filters and prefilters clean and free of moisture-retaining debris and inspect regularly for leaks.
- Maintaining quality in swimming pools with chemical treatments. Cover or drain water from plastic pools when not in use.
- Turning over any unused garden pots, children's toys, and other objects so they don't hold water.
While working outside, be sure to wear long-sleeved shirts, pants, socks, and a hat when mosquitoes are present. Use insect repellents that contain DEET, picardin, or oil of lemon eucalyptus and reapply according to the label instructions.
To read more about managing mosquitoes, visit the UC IPM Mosquitoes website. For information in Spanish, read our Quick Tip. (Para información en español, lea el Nota Breva: Mosquitos.)
*To see which California counties have reported cases of WNV, visit WestNile.ca.gov
Author - Master Gardener