Brown Patch

Brown patch is a fungal disease of lawns causing small discoloured patches that grow to large patches of dead grass.

Identify the problem Identify the problem

Brown patch is a fungal disease affecting the roots of lawn grasses. Symptoms begin with small areas of discoloured grass and spread to brown off and kill areas up to 1 metre. Examination of grass roots will show roots turning black.


  1. Apply LawnPro Fungus Control at 10-14 day intervals as necessary.
  2. Then, for best results, follow up a few days later with LawnPro Mossclear.

Patch Repair Preparation

    1. Use a rake to remove dead grass and debris from the bald patch and to loosen the top layer of the soil a little.
    2. Water the bare patch with a watering can or sprinkler until the soil is moist.
    3. If the level of the bare patch is much lower than the surrounding soil, you will need to level it off using a fine layer of top soil.
    4. Rake this over to level it off and incorporate a little soil with the surrounding lawn so the patch is not so defined.
    5. Apply LawnPro D-Thatch to reduce the excessive lawn thatch that may have encouraged the brown patch fungus.

Sowing Seed

    1. Ensuring the contents are well mixed, scoop out a handful of LawnPro Smart Patch Mix* and scatter onto the soil of the damaged area.
    2. Make sure that the mixture covers all the bare patch.
    3. Rake lightly to incorporate with the top soil.Water gently with a watering can or gentle sprinkler.

After Sowing

    1. Keep the patch moist by watering gently but deeply every couple of days taking care not to wash the seeds away.
    2. Protect the patch from being disturbed by keeping children and pets off the area.
    3. The new patch can be mowed when new growth is established (5-8 cm high).

*For large areas and new lawns use LawnPro Smart Lawn Seed. For thickening lawns that have thinned out but don't have distinct bare patches use LawnPro Lawn Thickener.

Did You Know Did You Know

  • Brown patch disease in lawns is caused by Rhizoctonia species fungi.

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