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Fire blight on a pear tree caused by Erwinia amylovora. Tissues affected by the symptoms of Erwinia amylovora include blossoms, fruits, shoots, and branches of apple (Pomoideae), pear, and many other rosaceous plants. All symptoms are above ground and are typically easy to recognize.
We brought the callery pear to the United States in the early 1900s because we were trying to breed a resistance to a disease called fire blight into our native pears, according to Professor Jason ...
Frank Reiber, a plant scientist, searched for fire blight–resistant, fruit-tree seeds. In 1908 he found that Callery pear trees grown from imported Chinese seeds in a test orchard in Oregon ...
Rust, Kern's pear Gymnosporangium kernianum. Rust, Pacific Coast pear Gymnosporangium libocedri. Rust, pear trellis (European pear rust) Gymnosporangium fuscum. Rust, Rocky Mountain pear Gymnosporangium nelsonii. Side rot Phialophora malorum. Silver leaf Chondrostereum purpureum. Sooty blotch Gloeodes pomigena. Thread blight (Hypochnus leaf blight)
Parentage Dr. Guyot x Bella di Giugno. Susceptible to fire blight. eating: Tyson [23] [24] [20] [28] Early Sugar Pear: Philadelphia, US: 1794: Tree is hardy and fireblight reistant. Hardy in zone 5–8. Pick early August. eating Ure: Morden, Manitoba: Juicy, small-medium fruit [142] Uta [63] [226] Dresden-Pillnitz, Germany: 1993: Parentage ...
According to WSU's Tree Fruit website, fire blight is a disease affecting crops of pears and apples. "Infections ... Apr. 17—MOSES LAKE — Frank Zhao, a professor of plant pathology at ...
The Harovin Sundown pear (Pyrus communis L.) is a late-season fresh market pear with good storage capability. It is highly productive with no biennial bearing . The tree has excellent resistance to fire blight (a bacterial disease incited by Erwinia amylovora ).
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