Botrytis porri Buchw. on leek as an important storage fungus in Finland

Authors

• Risto Tahvonen Department of Plant Pathology, University of Helsinki, SF-00710 Helsinki 71, Finland,

DOI: https://doi.org/10.23986/afsci.72037

Abstract

Botrytis porri Buchw. was found to be a common and economically significant pathogenic fungus on leeks in storage. The increase in the number of fungi caused a linear decrease in the number of marketable leeks when stored at 0.5° C. B. porri was found to spoil leeks even at —0.5° C. Spraying with benomyl and thiophanatemethyl one or two weeks before harvesting significantly decreased the numbers of the fungus and the amount of damage caused during storage. Botrytis allii Munn and Fusarium avenaceum Sacc. rarely caused spoilage of leeks.