Poplar: Bacterial blight categories: Ornamental trees Ornamentals Poplar Poplar Diseases revision date: 2022-11-29 12:00 Poplar bacterial blightPhoto by: C.R. Foss Biology Bacterial blight of poplar causes leaf spots, which begin as small, dark, water-soaked spots. Twig dieback and branch or trunk cankers may also occur. Blighted shoots often turn black and appear scorched or burned […]
Poplar: Canker categories: Ornamental trees Ornamentals Poplar Poplar Diseases revision date: 2022-11-29 12:00 Canker on willow branchPhoto by: R.S. Byther Biology Canker of poplar is a fungal disease infecting twigs and branches of all sizes. The fungi enter twigs through wound sites and cause development of sunken, circular, brown cankers in the bark. Branch cankers […]
Poplar: Leaf and shoot blight categories: Ornamental trees Ornamentals Poplar Poplar Diseases revision date: 2022-11-29 12:00 Poplar leaf and shoot blightPhoto by: R.S. Byther Biology Leaf and shoot blight is a fungal disease which affects poplars, aspens, and willows. The fungus infects succulent leaves and twigs. Mature plant tissues are resistant. Initial symptoms include the […]
Poplar: Leaf blister categories: Ornamental trees Ornamentals Poplar Poplar Diseases revision date: 2022-11-29 12:00 Poplar leaf blisterPhoto by: R.S. Byther Biology Leaf blister is a fungal disease which infects the leaves of poplars. Leaves develop small to large yellow-green blisters or mounds on the upper surface. Severely infected leaves may be distorted. The undersides of […]
Poplar: Leaf rust categories: Ornamental trees Ornamentals Poplar Poplar Diseases revision date: 2022-11-29 12:00 Poplar rustPhoto by: R.S. Byther Biology Rusts of poplar are fungal diseases which usually require alternate hosts to complete their life cycle. They overwinter on the poplar leaves, then infect the alternate host in the spring (alternate hosts include pines, larch, […]
Poplar: Marssonina leaf spot categories: Ornamental trees Ornamentals Poplar Poplar Diseases revision date: 2022-11-28 12:00 Poplar Marssonina leaf spotPhoto by: R.S. Byther Biology Marssonina leaf spot is a fungal disease which is favored by wet weather. Leaves develop spots or flecks which are initially bronze or brown with yellow edges. These spots enlarge and may […]