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Winter Mold problem

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worachj

Advanced Member

Posts: 63

Location: Eagan, Mn

1

Friday, May 16th 2008, 11:56am

Winter Mold problem

I’ve been having a winter mold problem every spring since I installed my sprinkler system. Certain spots in the lawn are having a 70% grass kill due to winter mold and it seems to be getting worse each spring. I’ve had a soil test from the University of Minnesota and have followed their recommendation for fertilizing.


  • Location: Minnesota near the Twin Cities.
  • Watering: 1/2 inch of water every four days during the growing season.
  • Water between 4 - 9 AM.
  • Fertilizing: Twice a year. Once 2 weeks before Labor Day, and another time 2 weeks before Halloween.
  • Soil texture is Medium (on the clay side)
  • Organic Mater is 5.9%
  • pH is 6.2
  • Phosphorus is on the very high side.
  • Potassium is medium high.

I am looking for answers and/or suggestion on how to correct my winter mode and grass kill problem. Do I have a watering problem, fertilizing problem or a soil problem? Any help would be appreciated.
worachj has attached the following file:
  • Lawn picture.jpg (18.34 kB - 39 times downloaded - Last download: Feb 20th 2010, 2:59am)

This post has been edited 5 times, last edit by "worachj" (May 20th 2008, 12:34pm)

worachj

Advanced Member

Posts: 63

Location: Eagan, Mn

2

Tuesday, May 20th 2008, 12:36pm

RE: Winter Mold problem

Found a good link on snow mold from the University of Minnesota extension.

http://www.co.clay.mn.us/Depts/Extensio/ExAPSnMo.htm

The solution to minimize my snow mold damage seems to be to avoid excessive applications of nitrogen in the fall and to remove all dead debris like leaves and grass clippings before the winter snow fail.

huanic

New Member

Posts: 10

3

Friday, November 13th 2009, 12:59am

I’ve been having a winter mold problem every spring since I installed my sprinkler system. Certain spots in the lawn are having a 70% grass kill due to winter mold and it seems to be getting worse each spring. I’ve had a soil test from the University of Minnesota and have followed their recommendation for fertilizing.

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