Necrotic Ring Spot

Definition:

Necrotic Ring Spot

Also associated with summer patch disease, necrotic ring spot is a turf disease that affects many types of growing grasses, particularly in late spring or early autumn. The symptoms include small, light green patches that grow and turn reddish brown in color, appearing in streaks and circular patterns around a center of relatively healthy green grass. Necrotic ring spot is caused by root-infecting fungi and can be limited with the application of proper lawn and yard care.

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