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Beware of red thread disease

By on August 2, 2015

red-threadOver the past few weeks we have seen outbreaks of Red Thread Disease, the humid conditions are ideal for the occurance of the disease.
The spores live in the soil and also can be air bourne, the finer grass found in lawns are susceptible to the disease, which is why a council grass verge may not show any signs and your lawn is like the picture below.

The disease or fungus causes the grass leaf (not the grass plant) to die often giving the lawn a blotchy appearance. Whilst the disease is active the blotches will have a pink colouration and on closer inspection you will see 2mm long pink threads or needles.

Red thread attacks from May onwards favouring humid and mild weather. The drying effect of summer on your lawn can disguise the disease leading most people to assume wrongly that the lawn is just suffering from drought.

The disease or fungus causes the grass leaf (not the grass plant) to die often giving the lawn a blotchy appearance. Whilst the disease is active the blotches will have a pink colouration and on closer inspection you will see 2mm long pink threads or needles.

Some lawns will be affected more than others. The following conditions may increase severity of attack:

  • Lawns that have little air movement and hold the dew well into the day
  • Lawns that are watered – light frequent watering in the evening in warm weather will guarantee an attack!
  • Lawns that have a high level of thatch which holds moisture.

After saying all of the above it will not kill the grass. You can reduce the chance of the disease by following the above watering guide and by having the lawn scarified regularly. We can apply a fungicide which will kill the active spores present and protect the grass for about 6 – 8 weeks depending on the weather conditions, please get in touch for more details.

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