There are currently patches of discolored Bentgrass on some of the fairways. So, does that mean the soil is dry? While off-color turf certainly may be dry, there are several other possible causes as well. This would include dormancy, insect damage, or a turf disease.
This last option is the cause of what we're presently seeing on the Bentgrass. Specifically, this is a root-borne pathogen called Take-All Patch. While we've had this disease show up to some extent each spring, this year there appears to be a larger area affected than in the past. As with most turf diseases, Take-All Patch thrives in a relatively narrow temperature range--when it's really cold or really hot, you typically won't see any damage.
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It's a little frustrating to see this disease show up, since we have made preventative fungicide applications in the fall the last few years. The good news is that while Take-All Patch may temporarily discolor the turf, it rarely lives up to its name. Most years, the symptoms are gone by July 4.
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