lawn - 2
recently I had a near perfect lawn, but in the last three weeks
brown patches have appeared and the lawn looks as if it has been
attacked by a virus of some sort. Some of the patches are about
a metre long and others are round. This problem has only appeared
as the humidity has risen. Can you offer me a solution?
drought is often the reason for dead patches in lawns during summer,
I think the most likely cause in your case is one or more of the
fungal diseases that can sometimes affect lawn grasses. And the
recent humid weather has only encouraged the problem.
Once the weather dries
up the fungus should cease to be a problem, but you will probably
be left with bare patches in the lawn. You can break up the soil
in these areas and sow fresh seed, perhaps soaking the area after
sowing with Fungus Fighter, Greenguard or Thiram to reduce the chance
of further disease. Most garden centres have small packs of lawn
seed for repairing damaged lawns.
To reduce the risk of
future fungal problems, you could use a catcher to remove the clippings
each time you mow. In spring give the lawn a good scratching with
a rake to remove the dead grass that builds up on the soil surface
and encourages disease.
Gardener, Issue 166, 2005, Page 24
Reproduced with permission from the former Weekend Gardener magazine. The views expressed here are not necessarily those of the RNZIH.