Plant molluscocide for prevention of animal helminthosis

Abstract

Abstract Soft-bodied are intermediate hosts of helminthiases, in the body of which a number of development stages of larval forms of helminths occur. There is the highest population density of mollusks in the areas of ruminant grazing, which leads to mass infection of animals with trematodes. To destroy the intermediate host of helminths in agricultural production, molluscicidal remedies of synthetic and plant origin are used. The aim of the work was to determine the molluscicidal effectiveness of a plant remedy based on Saponaria officinalis in conditions of natural pastures. The material for work was the green mass of the plant Saponaria officinalis obtained in the warm season from roots, leaves, stems, flowers and seeds. By grinding this plant, a powder with a particle size of 1-3 mm was obtained. Then, the powder was extracted with ethyl alcohol. The obtained product (concentrate) was an amorphous gel-like mass of dark green color with a specific smell and well soluble in water. Field work in natural pastures was carried out on 6 biotopes with an area of 5-23 m2. Three species of gastropods were recorded from freshwater mollusks in the biotopes: Physella acuta, Lymnaea truncatula and Lymnaea palustris. The results of experiments conducted in the conditions of pastures indicate a high molluscocidal activity of the studied plant agent on pond fish, intermediate hosts of trematodosis pathogens. The effectiveness of the developed molluscocide in relation to gastropods when treated with a working solution (10.0 g/l) is from 92.3 to 100%.