Occurrence of Myrothecium rot and leaf spot of Kalancoe

In 1998, stem and leaf spot of Kalanchoe were occurred at commercial growers glass houses in Gifu city. Myrothecium sp. isolated from diseased plants was demonstrated as the causal agent. Inoculation tests showed the causal fungus had pathogenicity to tomato, spathiphyllum, diefenbakia and vinca plants. Based on morhorogical, cultural and pathological characters, the causal fungus was identified as Myrothecium roridum Tode: Fries. Among eight fungicides tested, bitertanol WP and kresoximmethyl WP controled the disease.