Turfmate field notes · Diseases

Spring dead spot

Ophiosphaerella species

Couch patches that fail to green up can reflect earlier root damage.

Map the patch. Check the plant.Turfmate illustration · not a diagnostic photograph
Original Turfmate educational illustration. Symptoms are a prompt to investigate, not a confirmed diagnosis.

What to look for

  • Circular patches remain pale while surrounding couch greens up.
  • The same areas can recur in successive seasons.
  • Roots and underground runners can be discoloured or decayed.

Confirm it before you treat it

Compare live and affected roots and record recurring locations. Winter dormancy, irrigation faults and other root diseases can resemble the problem. Seek sample-based diagnosis before committing to a preventative program.

What to do next

  1. Map and photograph affected areas during spring green-up.
  2. Review drainage, compaction, thatch and nutrition with a turf specialist.
  3. Plan recovery during active growth and discuss future prevention ahead of the infection window.
Seasonal watch

Conditions matter more than dates.

Root infection and visible spring symptoms occur at different times. Surface colour alone does not tell you when to treat.

Spring inspection can inform an autumn prevention discussion for affected couch sites; soil conditions and label directions determine timing.

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Will a spring spray instantly repair the dead circles?

No. Dead turf needs recovery or replacement. Prevention is a separate, earlier-timed program.

Keep investigating

Similar problems. Different solutions.

Reviewed 11 October 2026 · Turfmate. Seasonal windows are indicative planning guidance, not measured outbreak or prevalence data.

Technical sources & image credits

Photos support identification and may have been taken outside Australia. Appearance varies with species, mowing and conditions. A Turfmate product link does not imply endorsement by a photographer or source.