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WHAT ARE THOSE REDDISH THREADS IN MY LAWN???
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| Pam Bennett reported that red thread in turf was active due to recent cool wet weather. The fungus, Laetisaria fuciformis, thrives in humid weather and grows on the grass blades and leaf sheaths. The fungus produces the coral-pink to blood-red thread-like sclerotia on the tips of the blades; hence the name red thread. This disease can be especially severe on nitrogen-deficient turf and for the most part, regular fertility practices helps to minimize severity. In addition, as the weather changes, this fungus is likely to disappear only to show up again in the fall. Red thread doesn't usually kill a lawn but leaves circular tan to brownish patches that eventually recover. Kentucky bluegrass, perennial ryegrass, and tall fescue are more susceptible to this disease. For more information see Cornell University Cooperative Extension fact sheet on Red Thread For more information see Purdue Extension Turfgrass Disease Profiles on Red Thread |
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