In order to control ringworm infection among animals and man, six chemical compounds covering a wide range of the common disinfectants available in the veterinary fields were evaluated against four strains of dermatophytes including T. mentagrophytes, T. rubrum, M. gypsum, and M. canis. It was clearly demonstrated that the organic disinfectants are more effective fungicidal than the inorganic ones. There are some qualitative differences in the resistance of Trichophyton and Microsporum species to the used disinfectants. However, Trichophyton species show higher resistance to most used disinfectants than Microsporum species. Moreover, within the same fungal species there are some differences in their susceptibility to the same disinfectant. T. rubrum showed a higher resistance than that of T. mentagrophytes. Furthermore, M. canis showed a higher resistance than M. gypsum. The hygienic significance of the fungal species and the fungicidal properties of the disinfectant under test were briefly discussed.