First report of Helminthosporium spiciferum (Bainer) Nicot on mint (Mentha arvensis)

摘要

Leaf blight of mint (Mentha arvensis) is a new disease caused by Helminthosporium spiciferum on mentha leaves in India. Blight symptoms were observed on mentha leaves in the month of April, 2011. The fungal pathogen causing the disease was isolated on oatmeal agar medium and the pathogenicity was confirmed on leaves of mentha plant and Koch Postulates were established. This is the first report of the occurrence of leaf blight of mentha in India.