Necrotic Leaf Spot

Apple foliage develops discrete necrotic round spots (half-inch) with light brown centers and dark purple borders in late spring. Various fungi and possibly burned-out scab lesions cause this minor issue. No management is typically needed; control is rarely warranted in most years.

Reduce moisture around affected tissue by improving drainage and air circulation. Remove rotted material cleanly and dispose of it away from the planting area. Avoid wounding healthy tissue during cleanup, as fresh wounds create new entry points. If the problem keeps returning, evaluate whether the site is too wet or poorly drained for the species you are growing.