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Spores produced from the fungus-induced swellings on juniper stems can be infectious up to 6 km. The disease causes a yellow-orange spot that turns bright red on leaves of pear trees. The disease can be particularly damaging on pear, resulting in complete defoliation and crop loss if not treated.
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)
Pages in category "Pear tree diseases" The following 21 pages are in this category, out of 21 total. This list may not reflect recent changes. * List of pear diseases; C.
In southern Germany apple and pear trees have been a part of the landscape for a long time, and are difficult to protect. The decline of apple and pear trees from their landscape can be expensive to replace and could have a negative effect on tourism. In the long-run, fire blight is a very important factor of economy and society. [citation needed]
Septoria spot Septoria citri: Sooty blotch Gloeodes pomigena: Sour rot Geotrichum citri-aurantii Galactomyces citri-aurantii [teleomorph] Galactomyces candidum Galactomyces geotrichum [teleomorph] Sweet orange scab Elsinoë australis: Thread blight Corticium stevensii Pellicularia koleroga. Trichoderma rot Trichoderma viride Hypocrea sp ...
The Callery pear, or Bradford pear, is one of those vampires. Over the years, Callery pear ( Pyrus calleryana ) has become one of the most widely planted ornamental trees in the US.
On the apple tree, the infections occur on leaves, fruit and young twigs. [4] The brightly colored spots produced on the leaves make it easy to identify. Small, yellow-orange spots appear on the upper surfaces of the leaves, anytime from April to June. [5] These spots gradually enlarge and turn orange or red and may show concentric rings of color.
Epidermodysplasia verruciformis is different in that it leaves victims unable to fight off certain types of HPV. "Tree man" syndrome is so rare that only 200 cases have been reported globally.