Lawn Care
Recognizing and Treating Red Thread in Lawns in Shelby Twp.
| Jun 13, 2026
Red thread fungus infection in lawn. | Tom Morgan, Owen Tree & Lawn Care
In Shelby Twp., Michigan, red thread is a common fungal disease that can damage your lawn, particularly during the warm and humid summer months. The fungus Laetisaria fuciformis causes red thread, which typically manifests as irregular patches of pinkish or reddish grass. Red or pink “hairs” can be seen growing from infected grass blades. This is the mycelium of the red thread fungus. As the disease spreads, these patches can expand, leaving your lawn looking unhealthy, sparse and with brown spots throughout.
Red thread thrives in damp, warm conditions, and summer climate in Shelby Twp. creates a perfect environment for the fungus to flourish. Early recognition is key to controlling this disease before it spreads too far. Homeowners should look for discolored patches of grass that may appear weak or thinning. These areas of your lawn can become more widespread and extensive if left untreated.
To treat red thread in Shelby Twp. start by improving your lawn’s overall health. Fertilize with a nitrogen-rich fertilizer, as red thread is often a result of nutrient deficiencies. Proper watering practices are also important - avoid over-watering, as excess moisture can promote fungal growth. Aerating your lawn to improve air circulation, break up the thatch layer, promote root growth and reduce compaction will also help.
If the disease persists, fungicide treatments may be necessary. Shelby Twp. homeowners can consult with local lawn care professionals for personalized treatment plans to effectively manage red thread and restore the health of their lawns. With prompt attention, you can minimize damage and keep your lawn green and thriving.