Cold temps/frost does that.
Thanks! Great article!osuturfman said:What you are seeing is known as chilling injury. Slightly cooler air will settle in areas of the turf that are just slightly lower than surrounding areas causing those low areas to go off color. This is a natural part of warm-season turf hardening off for winter. Here is a great article on the subject:
http://sturf.lib.msu.edu/article/2011jan54.pdf
Great post!osuturfman said:What you are seeing is known as chilling injury. Slightly cooler air will settle in areas of the turf that are just slightly lower than surrounding areas causing those low areas to go off color. This is a natural part of warm-season turf hardening off for winter. Here is a great article on the subject:
http://sturf.lib.msu.edu/article/2011jan54.pdf
Thanks for the article! I've got this going on as well, but only in areas not shielded from wind, so the thermal current explanation makes perfect sense.osuturfman said:What you are seeing is known as chilling injury. Slightly cooler air will settle in areas of the turf that are just slightly lower than surrounding areas causing those low areas to go off color. This is a natural part of warm-season turf hardening off for winter. Here is a great article on the subject:
http://sturf.lib.msu.edu/article/2011jan54.pdf