First Report of Foot Rot on Tropaeolum majus in Japan

Abstract

In June 2012, a foot rot disease of nasturtium (Tropaeolum majus L.) cultivated in Kamakura, Kanagawa was found for the first time in Japan. The causal fungus was identified as Rhizoctonia solani AG-4 HG-I based on morphology and PCR analysis with specific primers. We propose to call the new disease “Kabugusare-byo” in Japanese.