Colletotrichum spp.

Turf Disease

Anthracnose typically infects turfgrass, particulary Wintergrass during warm weather when the turfgrass canopy is wet and or humid.

Susceptible Turfgrasses
Wintergrass, Bentgrass, Kentucky Bluegrasses, Fescue & Couch.


  • Leaves of infected plants turn yellow to a light tan to brown before dying.

  • Younger leaves often turn red.

  • Basel stem & leaf sheath's rot, affected plants are easy to pull out.

  • Infected areas are seen as irregular shaped patches.

  • Affected patches are a reddish brown colour turning yellow then tan to brown.

  • A black stain may occur at the base of infected plants, this is an acervulus, a black fungal fruiting body

Anthracnose South Africa Turf Care

Acervulus with setae visible with a microscope

Conditions favouring disease

  • Disease development is favoured by warm humid conditions.

  • Anthracnose favours temperatures over 25°C.

  • It is necessary for a film of moisture to be present on either the roots or foliage for infection to occur.

  • More than 10 hours a day of leaf wetness for consecutive days.

  • Hot summers in cool temperature areas are when the disease is most noticeable.

  • Soil compaction and low amounts of nitrogen also contribute to disease occurence.

Integrated turf management

  • Preventative fungicide program during high risk periods.

  • Decrease traffic.

  • Maintain adequate nitrogen and balanced fertility.

  • Do not core or aerate while disease symptoms are present.

  • Avoid management practices which encourage humidity and extended leaf wetness.

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Fungicidal control 

Preventative applications provide optimum control of anthracnose. The following products have label recommendation for anthracnose control in the South Africa:




Mode of action



Optimum timing

During conducive conditions

During conducive conditions

Dose rate


560g/ha to 1.12kg/ha

Water volume

400 to 1000 l/ha

400 to 1000 l/ha

Refer to respective product labels for full details

​​Suggested Programme 

Once conditions conducive to anthracnose occur, or Greencast indicates high risks of disease a preventative application of either Heritage or Banner should be applied.