Vasić, TanjaŽivković, SanjaMarković, JordanDebasis, M.2025-09-172025-09-1720241311-0489 (Print)2367-8364 (Online)https://rifoc.ikbks.com/handle/123456789/208Рад у водећем часопису националног значаја (M 51)In practice, many weeds are frequently overlooked as sources of infection with a variety of plant diseases. This is especially true for diseases whose causative agents are transferred by weed seeds or can be found on weed roots and plant residues of weeds. Specifically, because most cultivated plants have a one-year life cycle and depart from arable land after harvesting, so do the causative agents of plant diseases. Weeds present a distinct situation. When crops are harvested, no attention is paid to them, allowing them to grow freely on agricultural land. There have been no more detailed studies of the mycopopulation of weed plants in Serbia. In this article, we present the results of preliminary research. Weed plant seed samples were gathered during the summer and autumn vegetative periods of 2023 in a vegetable crop developed using organic production practices. Isolation was performed using standard phytopathological methods. In these investigations on the mycopopulation of weed seeds, 1050 seeds from 21 weed species were investigated. Morphological identification of fungi to genus was performed using standard keys. A large percentage of fungi colonies formed around the seeds of weed plants. In this way, nine different genera of fungi were determined, namely: Penicillium, Fusarium, Albugo, Alternaria, Cladosporium, Bipolaris, Epicoccum, Rhizopus and Mucor.enCC0 1.0 Universalhttp://creativecommons.org/publicdomain/zero/1.0/fungiphytopathogenicweedsarticle