Gray Mold Occurring on Perennial Pea and Primrose

Abstract

Gray mold of perennial pea (Lathyrus latifolius) and primrose (Primula malacoides) occurred in Ibaraki Prefecture on June 2009 and in Fukuoka Prefecture on September 2010, respectively. Both causal agents were identified as Botrytis cinerea. Perennial pea is added to hosts of‘gray mold of sweet pea’caused by B. cinerea in Japan. B. cinerea pathogenicity on primrose had not been confirmed. Hence, we analyzed pathogenicity and formally reported the disease‘gray mold of primrose’in Japan.