Feeding plots often contribute to the spread of micro- and macroparasites. We compared cockchafer grub density, the prevalence and mean intensity of Macracanthorhynchus hirudinaceus infection in cockchafer grubs between wild boar feeding plots and other habitat patches in the southwestern Hungary. Grub density was higher, although not significantly, in feeding plots (6.57 specimen/m2, N = 125) than in the other habitats (4.77 specimen/m2, N = 148). There was significant difference in the prevalence and mean intensity of parasite infestation of the grubs between the two habitat patches. This indicates that the temporary aggregation of wild boar could mildly affect grub density and M. hirudinaceus infestation in its intermediate host.