How to Cure Lawn Diseases

Diagnosing the type of disease that has infected your grass is the first step curing your lawn. A number of diseases causes lawns to decline in health such as powdery mildew, rust, leaf spot, melting out and strip smut to name a few. Gardeners should not only monitor grass during the growing season, but also keep an eye on grass during the winter for diseases such as typhula blight and fusarium patch. Apply a treatment as soon as you notice early signs of the disease to prevent bare areas and thinning grass.

Fungicide
Masonry trowel
Dethatcher
Shovel
Grass seeds
Compost

Instructions

- 1
  Apply a fungicide to your diseased lawn areas. Water your lawn for two to three days before your fungicide application if it appears water stressed. Spraying a fungicide to a water stressed lawn can promote its health decline.
- 2
  Reapply the fungicide in seven to 14 days or according to the label. The frequency of your fungicide applications depends on how much rain your lawn is receiving. Pick a dry day to apply the fungicide.
- 3
  Cut a 2-inch wedge out of your lawn with a masonry trowel to check the thatch layer. A thick thatch layer over 1/2 inch can lead to lawn diseases. Fungicides will only temporary treatment lawn diseases if you have a thick thatch layer. Rent a dethatcher to remove excess thatch if the layer in over 1/2 inch thick.
- 4
  Dig up dead areas of the lawn that have succumbed to the disease. Water the soil, so that it is moist. Broadcast your grass seed on these areas. Cover with 1/8 inch of compost and water until the soil is moist.
- 5
  Water your lawn in the morning. Late afternoon watering may lead to lawn diseases. Dig up any surrounding weeds. Fungal spores that cause lawns diseases can overwinter in surrounding weeds and germinate in the spring.

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