Septoria spot


Septoria spot of citrus is a fungal disease caused by the pathogen Septoria citri.

The disease commonly occurs in inland irrigation areas on Washington navel oranges and grapefruit, but all commercial citrus varieties are susceptible.

The disease mainly affects external fruit quality.

This Primefact covers the following aspects of the disease:

  • source and spread
  • symptoms and
  • control


Primefact 753 First Edition

Published: Nov 2007