PACE Turf - Turfgrass Information Center

Gray leaf spot hits in many locations

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This table from the PACE Turf weather update illustrates the severe stress conditions that were observed at three locations where GLS was reported in early September, 2012. Refer to this document for the background on the stress index (aka Wong GLS index - Max T (F) + minimum RH (%) > 140 = high stress/gray leaf spot). This model was developed by Dr. Frank Wong.

Turf Diseases

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