In this selection, we examine the "worm" as a multifaceted concept, uniting both essential soil organisms and parasitic forms of significance to veterinary practice. Earthworms are a fundamental component of the agrocenosis: they actively participate in soil formation processes and organic matter processing, creating a highly effective fertilizer — humus. Understanding their role allows the agronomist to competently manage soil fertility, improve its structure, and increase the yield of agricultural crops using modern biotechnological approaches.
Along with soil improvers, the topic also touches upon issues of veterinary parasitology. We are publishing materials on the classification of animal parasites and the principles of conducting veterinary-sanitary expertise in the detection of specific diseases, such as cysticercosis. Such a comprehensive approach will help specialists and gardeners not only to develop methods of organic farming but also to ensure proper veterinary control. The information presented systematizes knowledge about biological processes in the soil and methods for preventing parasitic threats, providing a deep understanding of the biological factors affecting the productivity of a farm.