Japanintatar (Reynoutria japonica) is a perennial, fast-growing grass that forms dense stands. It is a nationally regulated alien species. It must not be released into the environment or imported into Finland from or outside other EU countries. The Japanese Tatar may also not be held, bred, transported or passed on.
The Japanese female is harmful because as a powerful plant it steals habitat from other species. Like other large buckwheat, it spreads efficiently and competes with cultural vegetation in the vicinity of settlement. For example, the seeds of woody plants are unable to germinate in dense buckwheat. The natural vegetation development of the area is slowing down and completely changing.
The spread of buckwheat should be prevented and its side effects limited. Disposal is tricky and requires years of hard work, but with these tips you can succeed in getting rid of the alien species.
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This is how you identify a Japanese buckwheat
- The stems are almost unbranched, hollow, “bamboo-like” and slightly woody. They are light green in color.
- The plant can grow to three meters.
- The leaves are about 10-15 cm long. They are triangular in shape, blunt-base and long and narrow-tipped.
- Blooms in Finnish conditions in September-October. The inflorescences are erect clusters of petals with white or pink petals.
Follow these instructions to destroy the Japanese woman
- The easiest way to eradicate buckwheat is when the plant is still small, so that the smallest seedlings can be removed from the roots by hand. The eradication of small-scale crops can be achieved by cutting and covering the stems of the crop with strong plastic or a tarpaulin for 3 to 4 years.
- In order to eradicate a plant, all its roots and parts of the root must be removed from the ground, as even a small piece of rhizome allows new vegetation to grow. Digging and transporting the land contributes to the spread.
- The most effective method of disposal is to cut off the stems and spray the pesticide on the hollow stems. The method should be repeated a few times a year until the crop has disappeared.
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Be careful when disposing of plant debris
When disposing of plant waste, make sure that the roots and stems of the Japanese buckwheat are dead. Living parts can spread with compost or soil masses to new habitats. The leaves of the plant do not spread, so they can be left in place to rot.
Removed stems and roots should be dried or burned, as in compost they are certainly only destroyed at very high temperatures.
The transfer of soil containing rhizome pieces should be avoided, as the plant spreads through them. The transfer of buckwheat to bodies of water or to places where they can spread uncontrolled into the wild should be avoided.
The spread of crops can be prevented with the help of a root mat.
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Source: Puutarha – Kotiliesi.fi by kotiliesi.fi.
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