Ring spot

Ring spot


  • Ring spot is a foliar fungal disease of cereals and most grass species

  • It is normally distributed fairly evenly through the crop


  • Scattered, yellow leaves across paddock.

  • Leaves have small brown spots 1-4 mm with dark brown rims and pale brown centres.

  • Spiky fungal structures are produced from previously infected grass seeds


  • Yield penalty is very minor, often no yield loss occurs


  • Fungicide treatment is rarely required.

  • Control grass weeds, particularly brome and barley grass, in the year before sowing cereals

  • Avoid successive cereal crops


Links and Resources

DAFWA - Ring Spot

Introduction, what to look for, other similar diseases, where did it come from, and treatments.