Control of Athelia rolfsii disease on lentil seedlings using 6-pentyl-α-pyrone

The volatile fungal metabolite 6-pentyl-α-pyrone (6PAP) suppressed Athelia rolfsii disease of lentil seeds and seedlings when applied onto the surface of the soil, on 13 mm diameter Whatman assay disks. The metabolite had no phytotoxic effects on lentil. This is the first study to show that 6PAP is active in the soil against the vegetable pathogen A. rolfsii.