Birch Diseases

Birch: Canker categories: Birch Birch Diseases Ornamental trees Ornamentals revision date: 2022-11-21 01:15 Botryosphaeria canker with fruiting bodies emerging on birch tree trunk Photo by: R.S. Byther Biology Several fungal pathogens can cause canker disease of twigs and branches. Young cankers appear darker and slightly more sunken than adjacent healthy bark. As they grow, they […]

Birch: Rust categories: Birch Birch Diseases Ornamental trees Ornamentals revision date: 2022-11-21 12:58 Birch rust on leavesPhoto by: R.S. Byther Biology Birch rust is a fungal disease which first appears on leaves in early summer. Initially, small yellow angular spots develop on leaves. These may expand into brown spots with yellow edges. Later in the […]