Which of the following is NOT a root-infecting turf disease?

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Multiple Choice

Which of the following is NOT a root-infecting turf disease?

Explanation:
Root-infecting turf diseases attack the plant’s roots or crowns, causing patches where the grass fails to establish or survive due to root decline. Necrotic ring spot, take-all patch, and summer patch all primarily damage roots and crowns, leading to patchy areas as the roots lose function and the grass withdraws. Fairy ring, by contrast, is driven by a soil- or thatch-dwelling fungal colony that alters growth patterns around a circular ring—sometimes producing a lush ring or a dead ring—without directly injuring the roots in the same way a true root pathogen does. So the disease not infecting roots is fairy ring.

Root-infecting turf diseases attack the plant’s roots or crowns, causing patches where the grass fails to establish or survive due to root decline. Necrotic ring spot, take-all patch, and summer patch all primarily damage roots and crowns, leading to patchy areas as the roots lose function and the grass withdraws. Fairy ring, by contrast, is driven by a soil- or thatch-dwelling fungal colony that alters growth patterns around a circular ring—sometimes producing a lush ring or a dead ring—without directly injuring the roots in the same way a true root pathogen does. So the disease not infecting roots is fairy ring.

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