First Report of Leaf Spot of Kalanchoe Caused by Phoma exigua in Japan

Abstract

Leaf spot of air plant, Kalanchoe pinnata (Lam.) Pers., occurred on Chichijima in Ogasawara (Bonin) Islands in 2003. The pathogen isolated from the diseased plants was identified as Phoma exigua. An inoculation test confirmed that this fungus was the causal agent of this disease. This is the first report of this disease in Japan.