top of page

Dedicated to Protecting Public Health Through Science and Service

mosquito icon_edited.png

Mosquito Information

Learn about mosquito species, lifecylce, and prevention

gavel_edited.png

Board Agenda

Access meeting schedules, minutes and agendas

wrench_edited.png

Service Requests

Submit a request for inspection 

Read Our Newest Paper!

Weekly Mosquito Testing Results

West Nile Virus Update - Week of October 5th

West Nile Virus Update: Eight (8) positive mosquito samples were found in Chino, Ontario, Rancho Cucamonga, and Upland. Wear repellent outdoors, dump and drain standing water, and call us for mosquito concerns.

WNV Update 2026 (10).png
WNV Update 2026 (11).png

VIRTUAL VECTOR VISITS!

Send us your backyard pics and receive personalized instructions from our professional staff in the app!

technition 2_edited.png
Asset 1-11.png
Mosquito.png

District Updates & Latest News

oscar-05.jpg

Mosquito Prevention Tips

Learn how you can prevent mosquitoes in your home every season!

DSC07869a.jpg

Learn More About Our Services

Find about new updates regarding mosquitoes in your area!

surveillance-13.jpg

Learn More About S.I.T. Program

Heard about Sterile Insect Technique? Learn more about our program here!

Mosquito Prevention Checklist

Daily: Wear repellent outdoors. Use DEET, Picaridin, Oil of Lemon Eucalyptus, or IR3535.

Weekly: Scrub outdoor plant saucers. Dump out any standing water.

Weekly: Scrub indoor plant saucers. Empty all plates holding water.

Weekly: Check indoor decorative vases. Dump water or add rocks to displace it.

Weekly: Clear out yard drains. Add pea gravel or drill holes in boxes.

Weekly: Sweep sidewalk gutters. Keep the concrete clear and dry.​

Monthly: Inspect window and door screens. Fix holes, tears, and loose gaps.

After Rain: Check rain gutters, clear blockages and scrub to remove any eggs

Check Yearly: Consider putting mosquitofish in ponds, horse water troughs, or other permanent water sources.

bottom of page