Delta Mosquito and Vector Control District

Delta Mosquito and Vector Control District

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Delta Mosquito & Vector Control District was established in 1922 to protect public health.

09/10/2025

** Visalia **

Due to high numbers of mosquitoes and the detection of West Nile virus in mosquito samples, Delta Mosquito & Vector Control District will conduct adult mosquito treatments using truck-mounted ultra-low volume (ULV) equipment.

No precautions are needed for this treatment.

Treatments will occur tonight in Visalia between the hours of

9:00 p.m. and 1:00 a.m. on Wednesday night, September 10th

We treat areas with high mosquito counts and West Nile virus, focusing on spots where it could spread. Not all areas are treated nightly.

Daytime bites? Likely Aedes aegypti—an invasive, aggressive biting mosquito that prefers humans at all times of the day, but doesn’t spread West Nile and isn’t targeted by night sprays.

Please direct message us with your email to recieve future updates and notifications.

08/21/2025

**Dinuba**

Due to high numbers of mosquitoes and the detection of West Nile virus in mosquito samples, Delta Mosquito & Vector Control District will conduct adult mosquito treatments using truck-mounted ultra-low volume (ULV) equipment.

No precautions are needed for this treatment.

Treatments will occur tonight in Dinuba between the hours of

9:00 p.m. and 1:00 a.m. on Thursday night, August 21st

We treat areas with high mosquito counts and West Nile virus, focusing on spots where it could spread. Not all areas are treated nightly.

Daytime bites? Likely Aedes aegypti—an invasive, aggressive biting mosquito that prefers humans at all times of the day, but doesn’t spread West Nile and isn’t targeted by night sprays.

Please direct message us with your email to recieve future updates and notifications.

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Telephone

Address


1737 West Houston Avenue
Visalia, CA
93291

Opening Hours

Monday 7:30am - 4pm
Tuesday 7:30am - 4pm
Wednesday 7:30am - 4pm
Thursday 7:30am - 4pm
Friday 7am - 4pm