What is the classic symptom of brown patch disease?

What is the classic symptom of brown patch disease?

• A. Yellowing leaves
• B. Grayish mycelium on dead patches
• C. Wilting of grass blades
• D. Stunted growth

Answer: (B)

The classic symptom of brown patch disease is the presence of grayish mycelium on dead patches within the affected turf. Brown patch is caused by the fungus Rhizoctonia solani, which thrives in warm and humid conditions. Infected areas often exhibit circular patches of dead or dying grass, and during periods of high humidity or nighttime dew, one may notice a grayish or cottony growth that is the mycelium of the fungus. This visual cue is particularly important for diagnosing the disease, as it distinguishes brown patch from other turf diseases. The circular patches can expand rapidly, leading to larger areas of turf loss if not managed promptly. Understanding this symptom helps in taking the necessary steps for treatment and management, such as ensuring proper watering, enhancing air circulation, and applying fungicides when appropriate.

The classic symptom of brown patch disease is the presence of grayish mycelium on dead patches within the affected turf. Brown patch is caused by the fungus Rhizoctonia solani, which thrives in warm and humid conditions. Infected areas often exhibit circular patches of dead or dying grass, and during periods of high humidity or nighttime dew, one may notice a grayish or cottony growth that is the mycelium of the fungus.

This visual cue is particularly important for diagnosing the disease, as it distinguishes brown patch from other turf diseases. The circular patches can expand rapidly, leading to larger areas of turf loss if not managed promptly. Understanding this symptom helps in taking the necessary steps for treatment and management, such as ensuring proper watering, enhancing air circulation, and applying fungicides when appropriate.