Asked by: Eligijus Naharria
asked in category: General Last Updated: 1st February, 2020

What causes black patches on lawns?

Causes. Black spots on lawn grass occur due to fungal diseases such as leaf spot, pythium blight, leaf smut and slime mold. Leaf smut is more common on bluegrass, fine fescue and perennial ryegrass, while slime mold occurs on warm-season grasses and rarely affects cool-season ones.

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In respect to this, how do I get rid of black fungus in my lawn?

Use plain water to get rid of the unsightly black patches quickly and easily. Set a hose nozzle to its strongest setting and spray the slimy black mold directly. The water dislodges the mold spores. Washing off the mold works best during dry weather or a few days before a period of dry weather.

One may also ask, why do I have brown patches on my lawn? Brown patch is really a summer lawn disease that's caused by a fungus called Rhizoctonia. Then, lawn disease damage can become visible almost immediately. Once started, brown patch lawn disease spreads fast. Brown patch damage first appears as circular areas of brown and dead grass surrounded by a narrow, dark ring.

In this way, how do I treat brown patches on my lawn?

Here are 8 ways to treat brown patch and lawn fungus:

  1. Only water your lawn as much as necessary.
  2. Avoid walking over brown patches and affected areas.
  3. Fertilize your lawn.
  4. Mow your lawn at a healthy height.
  5. Be patient.
  6. Keep leaves off your lawn.
  7. Keep an eye on shady areas.
  8. Apply a fungicide.

Will lawn fungus go away on its own?

Unfortunately, lawn fungus will not disappear if left untreated. The most effective way to manage yard fungus is to use a fungicide and practice good turf management. Make sure to avoid overusing fungicide to prevent additional damage to your grass.

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