Overview of alien organisms

It refers to organisms that have come in from other areas through human activities, even though they were not originally in the area.
Invasive organisms are very familiar to our lives, and it is said that the number of exotic organisms that live in the field of Japan exceeds 2,000 species.
These come in from foreign countries on a daily basis, regardless of intentional or unintentional. Among alien organisms imported from overseas, invasive alien organisms that have or may adversely affect the ecosystem, human life and body, agriculture, forestry and fisheries are called "special alien organisms."

• Alien Biology Act (outside site)(Ministry of the Environment page)
• How to identify specific alien organisms (outside site)(Ministry of the Environment page)
• Leaflet and pamphlet (outside site) on alien species(Ministry of the Environment page)

Prevention of Damage to invasive organisms (outside site) (Ministry of the Environment page)

1. (Do not allow invasive organisms that may adversely affect them into Japan)
2. Do not throw away (do not throw away alien organisms in the field)
3. Do not spread (exotic organisms already in the field do not spread to other areas)

Prohibited to prevent alien organisms from spreading (outside site) (Ministry of the Environment page)

About extermination of specific invasive organisms and alien organisms
Basically, you will have to deal with the owner or manager of the land or building.

・About list of specific alien organisms (outside site) (Ministry of the Environment page)

Please refer to the website of the Green Environment Bureau.

Please see the page of Green Environment Bureau Zoo Division.

In the case of extermination, it is common to extract from the roots, but in order to prevent the spread of seeds, it is also effective to cut the ground by the beginning of the flowering season when seeds are formed.
The exterminated items should be sealed in a bag so that the seeds do not spread, exposed to the sun for a few days, and then disposed of as burnable garbage.
Please refer to the homepage (outside site) of the Ministry of the Environment (Kyushu Regional Environment Office) for details on how to identify and exterminate the giant daisies.

Please visit the Health and Social Welfare Bureau Health Sanitation Division page.

Please see the news page about "Fire Ant Aka Cami Ali".

• Unlike fire ants, it is non-toxic and does not stab people.
• It has a strong fertility and causes damage to ecosystems, such as destroying native Japanese ants. In addition to causing discomfort, such as invading houses and swarming food, it also causes crop damage.
• Native to South America. Due to the movement of goods, there are cases of intrusions around the world and in Japan.
• It nests relatively close to the surface of the ground, and uses gaps such as cracks in concrete and under flower pots are also used as nests.
• "How to identify Argentine ants" (outside site) (external site)
• "Specific alien organism Argentina Ali" leaflet (outside site) (outside site)