A method for isolating strains of the genus Streptoverticillium from soil

Members of the genera Streptomyces, Micromonospora, Nocardia and Streptosporangium were effectively inhibited by oxytetracycline at concentrations tolerated by a majority of the Streptoverticillium strains tested. The incorporation of this antibiotic into a primary isolation medium significantly increased the numbers of Streptoverticillium spp. isolated from soils.