MOSQUITOES IN LOS ANGELES COUNTY: What You Need to Know Presented - - PowerPoint PPT Presentation

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Oct 01, 2023 413 likes •620 views

MOSQUITOES IN LOS ANGELES COUNTY: What You Need to Know Presented by: ANAIS MEDINA DIAZ Public Information Officer Greater Los Angeles County Vector Control District Our District 1,330 Square Miles 35 Cities and portions of Unincorporated

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MOSQUITOES IN LOS ANGELES COUNTY:

What You Need to Know

Presented by:

ANAIS MEDINA DIAZ Public Information Officer Greater Los Angeles County Vector Control District

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Our District

1,330 Square Miles 35 Cities and portions of Unincorporated Los Angeles County 6 MILLION Residents

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What We Do

Mosquito Control Disease Surveillance Public Education and Outreach

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What We Do

Underground Storm Drains Waterways (rivers & channels) Street Gutters Pools & Ponds Mosquito Traps Mosquito Identification

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Mosquito Life Cycle

Larvae

After a female mosquito

bites us, she will look for standing water to lay her eggs

Will Lay 100-350 eggs
4 life stages
5-7 days from egg to adult
When temperatures

increase 3-5 days

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Mosquito Threats in Our Area

CULEX

Activity Diseases Dusk and Dawn

West Nile virus
St. Louis encephalitis
Western equine encephalitis

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Mosquito Threats in Our Area

AEDES

Activity Diseases All Day Aggressive Biter Prefers Human Blood

Zika*
Dengue*
Chikungunya*
Yellow Fever*
Canine Heartworm

*No Local Transmission

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West Nile virus

FACTS SYMPTOMS

WNV is Endemic

which means it is present in Los Angeles County every year

WNV is a bird virus
When a mosquito

bites an infected bird that virus is transmitted to the mosquito and then is transmitted to a human

If bitten by an infected mosquito:

70-80% will have no symptoms
1 in 5 will develop flu-like symptoms
Symptoms: tiredness, headache, body

aches, fever

1 in 150 become severely ill
Severe symptoms: disorientation,

coma, tremors, seizures, muscle weakness, and paralysis

Greatest Risk: those over 50 years, and

those with weakened immune systems

There is no vaccine or treatment for

West Nile virus

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In California:

2020 WNV + Mosquitoes: 1,982 2020 WNV + Human Cases: 46

In GLACVCD:

2020 WNV + Mosquitoes: 204 2019 WNV + Mosquitoes: 61 2020 WNV + Human Cases: 13 2019 WNV + Human Cases: 17

http://westnile.ca.gov/ To view latest WNV activity: www.GLACVCD.org

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Aedes

Mosquito

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Invasive Aedes Expansion

(2013 – 2019)

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Invasive Aedes Expansion

(2013 – 2019)

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Your New Neighbor

Thrive in urban

environments

Thrive indoors & outdoors
Man-made container

breeders ○ Lay eggs on sides of containers that can be viable for years

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Aedes Eggs

Aedes eggs can survive without water for over a year, and will hatch when water is present.

Aedes eggs

Scrub container with a steel wool, soap and water and store it or throw away.

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Mosquito Watch

▪ Mosquito Watch (MW) is a neighborhood approach to mosquito control ▪ Program Goal: ○

Educate, mobilize, and empower residents to take action and protect their families and neighborhood from mosquitoes and the diseases they can transmit.

▪ Mosquito Watch was launched to provide residents with the tools and resources to take an active role in reducing the threat of mosquito-borne disease in their neighborhoods.

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Mosquito Watch

Take the Pledge Advocate Mobilize Champion

1 2 3 4

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Highlights

www.tiptosstakeaction.org

Mosquitoes need STAGNANT WATER to lay eggs &

go through their life cycle

Mosquitoes transmit diseases such as WEST NILE

VIRUS, Zika, DENGUE FEVER, etc.

TIP and TOSS containers that hold any amount of

water

Wear INSECT REPELLENT & keep SCREENS ON

DOORS & WINDOWS

Mosquito control is a SHARED RESPONSIBILITY
SHARE what you learned with friends & family

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THANK YOU!

ANAIS MEDINA DIAZ

Public Information Officer amedinadiaz@glacvcd.org (562) 944-9656 /GLAmosquito @GLAmosquito @GLAmosquito