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Harmful insects in homes – Mosquito (Ka)

Post: Thursday August 1, 2013

One unfortunate truth about Japan is that, like any other country, it has bugs that can sometimes get in your home or apartment.  Even if you live on the 15th floor of an apartment building, you may still encounter the occasional unwelcome housemate. So, we understand how you feel when you meet a creepy crawler face to face.  Below, we describe a couple of the most common types of bugs that you might meet in your house and suggested ways for dealing with them.



Mosquito - Ka

Mosquito season in Japan is during summer and autumn. The mosquitoes are persistent and difficult to get rid of if you are going to rely on the “swatting” method. Fortunately, malaria, which is a mosquito-borne disease – is rare in Japan.  However, the need to protect yourself from mosquito bites is still important if you want to enjoy a good night’s sleep or being disrupted from your daily activities because of an annoying and hungry mosquito. There are several excellent mosquito products on the market that you can use to repel and kill mosquitoes.


Brand Type Usage




Osotode Nomat200 Img 001

Battery-powered repellant

Place in strategic areas in and around your home or office.

Does not need to be plugged in because it comes with its own battery. It also has its own motor and fan to allow for extensive coverage.

This will last for 200 hours or over 33 days if you turn it on only 6 hours a day

Complete instructions can be found here.



Mukouryou Img 001


This is a powder-type mosquito repellant that lasts up to 10 hours. It also works to repel flies and dust mites. It can be applied on beddings. It is fragrance-free.

Shake the bottle before spraying.

Apply 15 cm from skin. It can be sprayed directly onto skin except for facial area or on open wounds

Be careful to spray for maximum time of only 3 seconds per application.

Complete instructions can be found here.

Herb Mushiyoke


Pearl Img 001

Herbal Mat

This is a 60 day natural herbal gel/soap and does not contain any pesticides. It is not for using on the skin. If there is skin contact with the gel, wash area well with soap and water.

To use, remove the protective silver film and screw the cap back on. You will notice a soft scent and this also becomes the indicator when it should be replaced or changed.

Place the tub at door entrances. The gel/soup should last around 2 months depending on wind factor and exposure to other elements.

Complete instructions can be found here.

Mushiyoke Net

(バポナ 虫よけネットW)


Net Img 001

Hanging Strap

This is a hanging repellant plate that works great for outdoors because it is not affected by rain.

To use, remove the protective film. Insert the cartridge into the device, making sure that it fits properly and is not sticking out. Avoid touching the inner plate directly but if you happen to do so, wash well with soap and water.

Hang wherever necessary but make sure the hook is secure.

Keep away from high temperatures and poor ventilated areas

Complete instructions can be found here.

Osotode Nomat V



Osotode Nomatv Img 001

Wrist mat

This is a convenient gadget you can use when walking outdoors or even when walking inside the house.

All you need to do insert the mat inside the device and making sure to secure it well. Switch it on whenever you need to use it and shut it off when not in use.

The device has a miniature fan and its own batteries.

Strap on the device on your wrist or any convenient location like a pipe, closet hanger, and stroller among many other options.

Complete instructions can be found here.


Final thoughts

There are many other types of bugs and insects in Japan.  There are spiders, mosquitoes  flies, and other bugs that may prove to be a pest.  Fortunately, you are not alone and there are ways to deal with any sort of pest.  There are products similar to what was described above available to deal with almost any kind of pest you may encounter.  If you have problems with any kind of bug, please check your local supermarket or drug store for an appropriate product to take care of the issue.

One thing to note is that bugs are often attracted by food so be sure that you always clean up your living areas and make sure trash is securely sealed up.  If possible, it may be helpful to keep your garbage stored in a tightly sealed trashcan outside your apartment or house.


We hope these suggestions will help you to have bug-free living in Tokyo!



This entry was posted in Living Information


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