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A Simple Culture Tube Closure Method for Prevention of Contamination by Airborne Fungi and Mites. Lloyd T. Richardson, Agriculture Canada, Research Institute, University Sub Post Office, London, Ontario N6A 5B7; Phytopathology 65:833-834. DOI: 10.1094/Phyto-65-833.

Fungal cultures in tubes closed with metal or plastic caps can be effectively protected against cross-contamination and mites by sealing with strips of plastic film.