Chemical Disinfestation of Greenhouse Growing Surface Materials Contaminated with Thielaviopsis basicola. W. E. Copes, Graduate Student, Department of Plant Pathology, University of Georgia, Athens 30602-7274. Floyd F. Hendrix, Professor, University of Georgia, Athens 30602-7274. Plant Dis. 80:885-886. Accepted for publication 14 April 1996. Copyright 1996 The American Phytopathological Society. DOI: 10.1094/PD-80-0885.

Sodium hypochlorite and captan significantly reduced propagule viability of Thielaviopsis basicola on polypropylene fabric, pressure-treated wood, and galvanized metal hardwarecloth surfaces that had been thoroughly wetted with a solution of endoconidia and alcuriospores of T. basicola. Viability of other unidentified fungal propagules was also reduced with captan sprays. Bromine and quaternary ammonium compounds did not reduce propagule viability of Thielaviopsis basicola and their effects were not significantly different from that of water.