Pyracantha: Scab
Pyracantha: Scab categories: Ornamentals Pyracantha Pyracantha Diseases Shrubs last review date: 2025-06-27 10:37 Pyracantha scab on leavesPhoto by: R.S. Byther Biology Pyracantha scab is caused by a fungus that overwinters in infected leaves, twigs, and berries. Young leaves and berries are most susceptible to infection. Olive green to black spots develop on leaves, twigs and […]