FIELD: agriculture.
SUBSTANCE: invention consists in use of preparations from rhizomes, roots, stalks, inflorescences and leaves of the serpent grass Polygonum bistorta L., which prepare in the officinal way, as means of controlling fresh-water mollusks. Using the specified means treat places of dwelling of fresh-water mollusks on a pasture or a box of the lowered pond.
EFFECT: provides practically utter annihilation of mollusks and their layings within three - six days.
6 ex
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