Solidago canadensis (hereinafter referred to as Solidago) is an alien invasive plant species for the Republic of Belarus. It is included in the list of particularly dangerous invasive plant species. Some people grow it on their household plots and around their homes. However, the use of Solidago in landscaping is prohibited.

SOLIDAGO CANADENSIS (hereinafter referred to as Solidago) is an alien invasive plant species for the Republic of Belarus. It is included in the list of particularly dangerous invasive plant species. Some people grow it on their household plots and around their homes. However, the use of Solidago in landscaping is prohibited.
The uncontrolled spread of this species leads to the suppression and even complete displacement of other plants from natural ecosystems. In meadow and floodplain ecosystems where Solidago settles, the composition and structure of hayfields change, the quality of harvested hay significantly deteriorates (cattle do not eat it), and large, stiff sods are formed, the development of which hinders the growth of many economically useful plants, and the structure and aeration of soils change. In floodplain meadow communities, Solidago poses a threat to populations of many rare and endangered plant species, and also disrupts the structure of crops and reduces crop yields.

However, it should be noted that, first and foremost, Solidago canadensis is an allergenic aggressive plant; each specimen produces over 20,000 seeds (with a germination rate of 50-90%), which pose a threat to human health by increasing the incidence of diseases, as Solidago pollen provokes allergic reactions in people. (Blooms in July – September, achenes ripen in August – October).

In recent years, the danger from this plant has increased; this species has significantly increased its numbers (by an average of 15-20%) and its distribution range, leading to transformations of natural complexes. Solidago canadensis is a quarantine plant, prohibited from being moved across borders and imported into many countries.

Control measures against Solidago include mowing twice a year (in May and August) and, most importantly, timely removal and disposal of the mown plants, as seeds can ripen on the ground and germinate the following year. Good results are achieved by digging the soil in the summer during dry periods, and it is also effective