Attention, garden owners! The supposed daisy is so dangerous

Attention, garden owners! The supposed daisy is so dangerous

Oberrohrdorf, Schweiz - The one -year professional herb, also known as Erigeron Annuus, is not uncommon in many gardens and open spaces. With its delicate white flowers and the bright yellow middle, the plant has a friendly and inviting effect. But as oe24.at, you should not grant this supposed beauty in your own garden. It is considered an invasive weed that should be removed because it threatens domestic plant species.

Originally, the professional herb comes from North America and was unintentionally introduced to Europe. In recent years, the plant has spread explosively and thus endangers the biodiversity. This development is not only an aesthetic problem, but also a threat to agriculture. According to schweizerbauer.ch, the one-year professional herb in Switzerland has become an increasing problem. Daniel Fischer from the Cercle Exotique recognized a strong increase in this plant in all of Switzerland, which extends over 800 meters to altitudes.

The dangers of professional herb

The professional herb has an upright, branched stem and can become up to 1.5 meters high. It thrives particularly well on nutrient -poor soils, especially on the side of the road, on fallow land or in open gardens. Each copy can produce up to 50,000 seeds that spread slightly through the wind. The smallest stocks can quickly develop into large colonies and thus endanger the entire flora of an area. This leads to a loss of biodiversity and disturbs the ecological balance. The combating of this plant is complex and requires intensive prevention measures that are successfully implemented by municipalities, but the herb remains widespread.

Combating is challenging because the seed supply in the ground is durable. An area is only considered neophyte -free if there are no more seeds in the soil; This can take up to ten years. Regular control and several times a year are necessary to prevent recolonization. Nevertheless, more radical measures such as heat treatments or soil exchange are required in heavily infected areas to get the professional herb under control.

measures to combat

In the municipality of Oberrohrdorf, the authorities have recognized that prevention and early detection are crucial in order to curb the spread of invasive plants, including the professional herb. The municipality offers a free day of disposal for neophytes twice a year. In this way, citizens can professionally dispose of the plants. The disposal takes place in transparent sacks, which must be registered in advance. Further information can be found in the disposal calendar of the municipality, while special collection bags can be provided free of charge at the municipal administration, such as Oberrohrdorf.ch notes.

The sensitization of the population also plays an important role in the fight against professional herb. Other invasive neophytes sometimes show declines, but the situation in professional herb is still worrying. Once overlooked, an invasive plant can quickly become a plague and undermine the control measures.

The control costs for joint measures in a municipality with an area of 10 km² are around CHF 10,000 annually and can be up to CHF 500 per area in heavily affected areas. A holistic approach that includes the population is crucial to prevent the work of professional herb and similar invasive species.