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About cockroaches

Last Updated July 24, 2024

Points of cockroache control

Cockroaches are not good at cold places, but due to the spread of heating equipment, they have come to see them all year round.

Harm caused by cockroaches

  • It gives a sense of filthyness and discomfort.
  • It can transmit bacteria that cause infectious diseases and food poisoning.
  • It bites food and books and causes damage.

The life of a cockroache

The life of a cockroache

The cockroaches grow in the order of eggs, larvae, and adults, and are characterized by no time for pupils.
The larva molts many times and becomes an adult in about a year (two to three months for a cockroache).

Cockroaches' habits

  • I'll eat anything.
  • I live in a group.
  • In the daytime, it hides in gaps and works at night.
  • It moves along the corners and edges.

Cockroaches' secret place

The cockroaches prefer the following places.

  • A warm place
  • Dark place
  • Near the food
  • A humid place
  • Narrow gap

(Specific example) Near the cooktop, under and behind the range and refrigerator, switchboard, near the outlet, behind the wallpaper, food storage location, garbage storage area, etc.

Control of cockroaches

The basis of cockroache control is to create an environment where cockroaches are difficult to live by cleaning and organizing them.
Let's use the habits of cockroaches to perform effective control.

Creating an environment where cockroaches are difficult to live

  • Food such as confectionery, kitchen garbage serves as food for cockroaches. Put it in a container with a lid and clean it up.
  • Do not leave the used dishes and cooking utensils, wash and store them.
  • Clean and clean the under and corners of cupboards and sinks, drains, etc.
  • Let's close the small gap.

Exterminate with chemicals

Let's get rid of it as small as possible.
In addition, it is effective to place an adhesive sheet for cockroaches near the hiding place preferred by cockroaches, and check the habitat before extermination.

Spray-type insecticide dedicated to cockroaches residual spraying

Spray a commercially available residue insecticide in places where cockroaches are likely to pass or where it is likely to be hidden.
As cockroaches have the habit of walking along the corner, spray insecticide on the red belt below.

Food Poisoning Method

Put poison bait containing boric acid in places where cockroaches are likely to pass or where it is likely to be secret, and feed it.
In order to prevent accidental ingestion and accidental eating of infants, etc., be careful about the location and storage location.

Smoke method

It removes cockroaches with smoke from insecticide. It is effective to close the room and make it so that smoke can reach the cockroaches' secret area.

Precautions for Use of insecticide

Be careful when handling and observe the following:

  • Read the precautions carefully and follow the dosage.
  • Do not feed food, tableware, toys, pet food, etc. If you accidentally get it, wash it with detergent or throw away anything that cannot be washed.
  • When spraying chemicals, use a mask, rubber gloves, etc. to prevent inhalation.
  • Be careful of fire when using aerosol insecticide. 。
  • Keep the medicine out of the reach of children.
  • Do not store poison bait in drink containers or tableware to prevent accidental ingestion and accidental eating.

If you have any questions about sanitary pests, please contact Health and Welfare Center Health Sanitation Division in your ward.

↑Return to the page of information about pests

Inquiries to this page

Health Sanitation Division, Medical Care Bureau Health and Safety Department

Telephone: 045-671-2456

Telephone: 045-671-2456

Fax: 045-641-6074

Email address: ir-seikatsueisei@city.yokohama.lg.jp

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Page ID: 411-088-400

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