Delta Mosquito and Vector Control District

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

We are responsible for controlling mosquito populations, mosquito-borne disease surveillance, and providing public education in northern Tulare County, California. Delta Mosquito and Vector Control District is a Tulare County special district charged to protect the public health of our community. Our team performs mosquito control and mosquito-borne disease surveillance. The lab staff monitor mosq

uito populations by setting traps to monitor mosquito abundance and mosquito-borne virus activity. Our vector control technicians regularly inspect water sources such as catch basins, dairy ponds, and swimming pools for mosquito breeding. We target mosquitoes at their source utilizing a variety of biological and chemical control methods to prevent increases in mosquito populations and local disease transmission. We also strive to educate the public about mosquitoes and mosquito-borne disease as your participation is a critical component of effective and lasting mosquito control. We provide our services free of charge in order to promote public health. No representative of Delta Mosquito and Vector Control will ever ask you to pay for services. If you are looking for more information regarding Delta Mosquito and Vector Control District, have any questions or would like to report abnormal mosquito activity, please feel free to contact our office at 559-732-8606 or visit our website at https://deltamvcd.org/.

** Dinuba, CA **Due to high numbers of mosquitoes and the DETECTION of West Nile virus in mosquito samples, Delta Mosqui...
08/04/2026

** Dinuba, CA **

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 all of Dinuba between the hours of

9:00 p.m. and 1:00 a.m. on Tuesday night, August 4th.

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.

We provide our services free of charge in order to promote public health. NO REPRESENTATIVE OF DELTA MOSQUITO AND VECTOR CONTROL WILL EVER ASK YOU TO PAY FOR SERVICES.

** Dinuba, CA and Visalia, CA**Due to high numbers of mosquitoes and the detection of West Nile virus in mosquito sample...
07/30/2026

** Dinuba, CA and Visalia, CA**

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 all of Dinuba and Visalia between the hours of

9:00 p.m. and 1:00 a.m. on Thursday night, July 30th.

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.

We provide our services free of charge in order to promote public health. NO REPRESENTATIVE OF DELTA MOSQUITO AND VECTOR CONTROL WILL EVER ASK YOU TO PAY FOR SERVICES.

** Goshen, CA **Due to high numbers of mosquitoes and the detection of West Nile virus in mosquito samples, Delta Mosqui...
07/28/2026

** Goshen, CA **

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 all of Goshen between the hours of

9:00 p.m. and 1:00 a.m. on Tuesday night, July 28th.

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.

We provide our services free of charge in order to promote public health. NO REPRESENTATIVE OF DELTA MOSQUITO AND VECTOR CONTROL WILL EVER ASK YOU TO PAY FOR SERVICES.

** Dinuba, CA **Due to high numbers of mosquitoes and the detection of West Nile virus in mosquito samples, Delta Mosqui...
07/28/2026

** Dinuba, CA **

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 all of Dinuba between the hours of

9:00 p.m. and 1:00 a.m. on Monday night, July 27th.

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.

We provide our services free of charge in order to promote public health. NO REPRESENTATIVE OF DELTA MOSQUITO AND VECTOR CONTROL WILL EVER ASK YOU TO PAY FOR SERVICES.

** Visalia, CA ** Tonight**Due to high numbers of mosquitoes and the detection of West Nile virus in mosquito samples, D...
07/24/2026

** Visalia, CA ** Tonight**

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 Southeast Visalia between the hours of

9:00 p.m. and 1:00 a.m. on Thursday night, July 23rd.

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.

We provide our services free of charge in order to promote public health. NO REPRESENTATIVE OF DELTA MOSQUITO AND VECTOR CONTROL WILL EVER ASK YOU TO PAY FOR SERVICES.

** Dinuba, CA **Due to high numbers of mosquitoes and the detection of West Nile virus in mosquito samples, Delta Mosqui...
07/23/2026

** Dinuba, CA **

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 all of North Dinbua between the hours of

9:00 p.m. and 1:00 a.m. on Wednesday night, July 22nd.

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.

We provide our services free of charge in order to promote public health. NO REPRESENTATIVE OF DELTA MOSQUITO AND VECTOR CONTROL WILL EVER ASK YOU TO PAY FOR SERVICES.

** Visalia, CA **Due to high numbers of mosquitoes and the detection of West Nile virus in mosquito samples, Delta Mosqu...
07/21/2026

** Visalia, CA **

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 all of southwest Visalia between the hours of

9:00 p.m. and 1:00 a.m. on Tuesday night, July 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.

We provide our services free of charge in order to promote public health. NO REPRESENTATIVE OF DELTA MOSQUITO AND VECTOR CONTROL WILL EVER ASK YOU TO PAY FOR SERVICES.

** Dinuba, CA **Due to high numbers of mosquitoes and the detection of West Nile virus in mosquito samples, Delta Mosqui...
07/20/2026

** Dinuba, CA **

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 Monday night, July 20th

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.

We provide our services free of charge in order to promote public health. NO REPRESENTATIVE OF DELTA MOSQUITO AND VECTOR CONTROL WILL EVER ASK YOU TO PAY FOR SERVICES.

West Nile virus spreads in a cycle between mosquitoes and birds. Mosquitoes become infected when they bite birds that ar...
07/20/2026

West Nile virus spreads in a cycle between mosquitoes and birds. Mosquitoes become infected when they bite birds that are already carrying the virus. These infected mosquitoes can then spread the virus to other birds.

Sometimes, infected mosquitoes also bite people, horses, or other mammals. However, humans and horses are considered “dead-end hosts,” meaning they can get sick from the virus but cannot spread it to other mosquitoes.

** Farmersville, CA **Due to high numbers of mosquitoes and the detection of West Nile virus in mosquito samples, Delta ...
07/16/2026

** Farmersville, CA **

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 all of Farmersville between the hours of

9:00 p.m. and 1:00 a.m. on Thursday night, July 16th

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.

We provide our services free of charge in order to promote public health. NO REPRESENTATIVE OF DELTA MOSQUITO AND VECTOR CONTROL WILL EVER ASK YOU TO PAY FOR SERVICES.

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

Telephone

+15597328606

Website

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