In the meadows and woodlands of Lithuania, lupins are rampant and, unfortunately, in some places they are becoming their sole master. Since ancient times, the lupine has been cultivated in flower nurseries for its charming inflorescence, sown as a soil-improving plant, but later spread rapidly and uncontrollably throughout the natural environment. Cattle hardly eat lupins, so meadows become of low value both biologically and economically.

In order to maintain the species diversity of our forests and meadows, we must destroy all invasive plants that spread rapidly, including the large-leaved lupins.

Right now, before the lupins are in bloom, is the best time to dig up single plants and mow the larger areas they have densely conquered for the first time. The roots are dug up, and they are 50 cm and even longer, it is necessary to dry them, and only then compost them. If lupines are mowed after they have already bloomed, it is necessary to collect, dry and burn the cut lupine grass with pods.

In non-natural habitats, where homogenous impenetrable lupine groves already reign, they can be destroyed using chemical means, i.e. herbicides (it is necessary to take into account the requirements of water protection belts).

Broad-leaved lupins win the competitive battle with sandhills and other native plants due to several characteristics. Bacteria living on lupine roots convert atmospheric nitrogen gas into nitrogen fertilizer, which is so lacking in barren sand.

with water from the deep layers of the earth, and the seeds matured in the pods remain viable for many years. Therefore, lupins easily establish themselves even in barren areas, completely displacing the usual plants of that place.

"Arm yourself with patience. Eradication of this invasive plant can take several to a dozen years. Picking flowers only slows down the spread of a beautiful but aggressive plant, so we strongly invite you to contribute to long-term actions that will help maintain the species diversity of our natural meadows," said Inga Čitavičienė, ecologist of the Directorate of Dzūkija-Suvalkija protected areas.

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