Spruce: Rhizosphaera needle cast
Spruce: Rhizosphaera needle cast categories: Conifers Ornamentals Spruce Spruce Diseases revision date: 2024-06-05 02:07 Spruce Rhizosphaera needle castPhoto by: R.S. Byther Biology The first symptoms occur in late summer, when a yellow mottling develops on the current season’s needles. During the fall to early spring, the infected needles turn brown or purplish brown. The needles […]