About mosquitoes

Mosquitoes transmit various infectious diseases such as dengue fever, Zika virus infection, chikungunya fever, West Nile fever, and Japanese Encephalitis.
In order to prevent mosquito-borne infectious diseases, take measures to prevent mosquito bites and increase the number of mosquitoes.

• About mosquito-borne infectious diseases(To the Yokohama City Public Health Center website)

It is a mosquito that transmits dengue fever and Zika virus infection.
There is a white pattern in the black. It is a representative of what is known as yabuka.
Blood suck is mainly in the daytime (especially morning and evening).

It has a brownish color.
It does not move much during the day and sucks blood at night.

They are in urbanized areas, such as the accumulated water in the basement of buildings.
It actively sucks blood in the evening and dawn, but may also suck blood during the day.
It is also active in the winter season.

Eggs lay on the surface of the water.
The number of spawnings varies depending on the type, but several dozens to hundreds of them at a time.
It lives in water for 1-2 weeks and becomes an adult.

Adults live for about a month, during which time female mosquitoes repeat the cycle of blood sucking, spawning-blood sucking, and blood sucking about one to four times.

Avoid exposing skin.
When going to places with a lot of mosquitoes, wear long sleeves and long pants to avoid exposing your skin.
Let's use repellent correctly.
There are products of various shapes such as insect repellent sprays and lotions, but be sure to check the precautions before using.
Let's avoid places with mosquitoes.
Avoid staying in weeds or in moist, poorly ventilated areas.
Let's not get mosquitoes in the house.
Install screen doors on windows and minimize the opening and closing of doors.

Aedes albopictus, which transmits dengue fever and Zika virus infection, is said to have a narrow range of activity (about 100m to 150m).
Let's reduce the source of mosquitoes around you and create an environment that does not increase mosquitoes.

Bow hula can also occur in small puddles.
Eliminate puddles and shape what causes the puddles.

Adults are located in moist, poorly ventilated places, such as in grass and yabs.
Let's cut grass regularly to eliminate mosquitoes.

The use of insecticide can be efficient, but the effect is temporary. In addition, excessive spraying can lead to adverse effects on the environment. For sustainable control, it is most important to have an environment where mosquitoes are difficult to live.
When using insecticide for controlling bow hula, use an insect growth inhibitor (IGR agent), which is said to be less harmful to other organisms. Be sure to read the precautions carefully, observe the usage precautions, and use it correctly.

To prevent or increase mosquito bites (poster: B3 size) (PDF: 885KB)

Watch out for mosquitoes! (Flyer: A4 size x 2) (PDF: 984KB)

For consultation on sanitary pests, please contact Health and Welfare Center Health Sanitation Division in your ward.

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