Red Thread on humid nights may present which of the following symptoms?

Red Thread on humid nights may present which of the following symptoms?

• A. A pink fungal layer may cover the grass blades
• B. A white powder on leaves
• C. A brown patch with yellow margins
• D. A blue patch of mold

Answer: (A)

Red Thread is a turfgrass disease that thrives under damp, humid nights. Its hallmark is a pink to red, thread-like growth on the leaf blades, sometimes forming a light pink film along the blades. That pink fungal layer on the grass blades is the best description of what you’d see with Red Thread, so it’s the correct match. Other descriptions point to different issues: a white powder would suggest powdery mildew on leaves, a brown patch with yellow margins is typical of brown patch, and a blue patch of mold isn’t a standard turf symptom.

Red Thread is a turfgrass disease that thrives under damp, humid nights. Its hallmark is a pink to red, thread-like growth on the leaf blades, sometimes forming a light pink film along the blades. That pink fungal layer on the grass blades is the best description of what you’d see with Red Thread, so it’s the correct match. Other descriptions point to different issues: a white powder would suggest powdery mildew on leaves, a brown patch with yellow margins is typical of brown patch, and a blue patch of mold isn’t a standard turf symptom.