In naturalistic assumptions, the spread of plants is desirable, as long as they do not choke species with less vigor, but in most assumptions, the appearance of plants in various unforeseen places spoils the compositional effect. There are many ways to expand: from seeds, through stolons or creeping, rooting shoots, to underground rhizomes.Each of them requires a different control method.
The most effective way to prevent proliferation of disseminating species is to remove faded flowers, thus preventing seeds from setting and sprinkling.Vegetatively reproducing plants are a bit more problematic.
The stolon species, such as rootstock, or rooted shoots, such as mint, are best controlled in spring.Mechanical removal of young runners or shoots requires relatively little effort.We should not allow for young plants to take root well.
It is even more difficult to get rid of rhizome plants, such as the common cheek or the elderberry. Mechanical removal consists in gently undermining the rhizomes with an American fork and carefully selecting even the smallest fragments. Leaving even a small fragment undermines the effort, because it can become the beginning of a new plant. The rhizomes of some plants, however, grow too deep.
The record holder is horsetail, whose rhizomes can be even 120 cm deep.In this case, the only method of control is spraying with a systemic herbicide. The recommended concentration of the preparation should be adhered to. Too high a concentration will "burn" the aerial parts and prevent the herbicide from "spreading" over the entire plant.
