Septoria

Septoria is a fungal disease due to Septoria tritici . It causes numerous leaf spot diseases on field crops , forages and many vegetables, and is responsible for yield losses.

Septoria apiicola is the cause of late blight of celery. it is characterized by the production of conidia within pycnidia. The symptoms include chlorotic spots that turn brown and necrotic. Septoria apiicola can survive on seeds.