Necrotic ring spot patches typically range in diameter from:

Necrotic ring spot patches typically range in diameter from:

• A. 6 inches to 2 feet
• B. 1 to 3 inches
• C. 2 to 4 feet
• D. 8 to 12 inches

Answer: (A)

Necrotic ring spot forms circular patches on turf as the disease spreads outward, creating a distinct ring of stressed or dead grass. The sizes of these patches vary from small rings to fairly large ones, with the typical diameter ranging about 6 inches to 2 feet. This range captures both the smaller rings you might notice early on and the larger rings that can develop under favorable conditions, making it the best descriptor of what you usually see in the field. Patches as small as 1–3 inches aren’t the usual scale for this disease’s characteristic rings, while 2–4 feet would be larger than commonly observed, and 8–12 inches, though possible, doesn’t reflect the full range from the smallest to the largest patches.

Necrotic ring spot forms circular patches on turf as the disease spreads outward, creating a distinct ring of stressed or dead grass. The sizes of these patches vary from small rings to fairly large ones, with the typical diameter ranging about 6 inches to 2 feet. This range captures both the smaller rings you might notice early on and the larger rings that can develop under favorable conditions, making it the best descriptor of what you usually see in the field. Patches as small as 1–3 inches aren’t the usual scale for this disease’s characteristic rings, while 2–4 feet would be larger than commonly observed, and 8–12 inches, though possible, doesn’t reflect the full range from the smallest to the largest patches.