About tocodler

The damage of the seafloor has decreased since around the Tokyo Olympics (1964), and was hardly found in the 1970s. However, since around 2007, it has gradually increased, and consultation has recently increased in Yokohama City. Causes of the increase in the damage include bringing in by foreign visitors and returnees, and the spread of goods due to the movement of goods.
For information on seaflies, please refer to the leaflet "Beware of Tokojira!" Don't bring it in! Don't worry about it! (PDF: 4,833KB) ”(Updated in July 2021).
In addition, please refer to the leaflet "To prevent damage from Tokojirami-To Business Operators of Accommodations, etc.-(PDF: 3,517KB)" (updated in July 2021) .

Adults are 5 to 8 mm in size.
・It has no wings, it is flat, oval, reddish brown.
・It produces brown dung (blood feces).
・It has a habit of lurking in a narrow gap.
・It is mainly active at night (at bedtime).

Photographs provided: Environmental Biology Department, Japan Environment Center

・The food is human and animal blood, which sucks blood is exposed, mainly at night (when sleeping), where the skin is exposed.
It is rare that itching occurs immediately after blood sucking, and repeated stabbing causes an allergic reaction and itching.

・It is very difficult to get rid of the increased seafloor, and it takes time and money, so the financial burden increases.

It is important to find it as soon as possible and take appropriate measures such as extermination.

・Floats prefer narrow and dark places, lurking in gaps during the daytime or when the room is bright.
<Linning location>
・Back and gaps of tatami mats
・Curtain folds and seams
・Seams and gaps for futons and pillow mattresses
・Furniture gaps, etc.

Blood feces (like black sesame), eggs, carcass, etc. can be found in the place where the seafloor dives.

Photographs provided: Environmental Biology Department, Japan Environment Center

Don't bring in sea urchin!
・When staying at a hotel (especially overseas), make sure that there are no spots and do not place your luggage directly on the floor.
・Check the inside of the bag you used for overseas travel or business trips, and check for blood feces and molting shells.

Discover early and exterminate!
・Clean and organize the room regularly on a regular basis, and be careful to make sure that there is no place for lurking.

・Suck it with a vacuum cleaner and dispose of the garbage right away.
・Because seaflours are vulnerable to heat, there is also a method of using a steam cleaner (more than 10 minutes at 60 ° C).
・insecticide is a carbamate type. When using it, follow the usage and dosage, and observe the progress to see if it is effective.
※Smoke agents (what that fills the room with smoke) spreads to other places and spreads, and rather spreads damage.
I don't recommend it because there is a possibility.
※Please note that excessive use of insecticide can affect your health and living environment.

Q1 Does the seaflours transmit infectious diseases?
A1 As of now, there are no cases of transmission of infectious diseases.

Q2 When is the activity time of the seafloor?
A2 Activities are active mainly in summer, but if heated, they will be active in winter.
In addition, it does not die even in the cold season, it passes winter in a dormant state and resumes activity when it becomes warm.

Q3 Where does the seafloor come in from?
A3 Furniture and Bags are brought in from outside.
Eggs are laid in bags such as bags and suitcases when traveling abroad, or are lurked and brought to homes.
I have a case.

Q4 Is it possible to easily find chick lice?
A4 It comes out for blood sucking activities at night, but because it is very small and quick, it is difficult to find when the number is small.
That's right.
As the number increases, the dark spots like the one in the photo become noticeable.

Q5 I found a chick lice, what should I do?
A5 We have consultation at Health and Welfare Center Health Sanitation Division in your ward.

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