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Quercus × warei is a hybrid oak tree in the genus Quercus.The tree is a hybrid of Quercus robur f. fastigiata (upright English oak) and Quercus bicolor (swamp white oak). [1] The hybrid is named for the American dendrologist George Ware, former Research Director at the Morton Arboretum in Illinois.
Taphrina caerulescens infects about 50 different species of oak (Quercus), predominately red oak (Q. erythrobalanus) and some white oak (Q. leurobalanus).Oak leaf blister is found across the country and in varying parts of the world but is most severe in the southeast and Gulf States of the U.S. [6] It is generally accepted that a T. caerulescens strain isolated from one host cannot be used to ...
The Penderels and Colonel Careless employed coats of arms depicting an oak tree and three royal crowns, differentiated by colour. [4] A Thomas Toft signed charger, c. 1680, with slip-trailed decoration of Charles II in the oak tree. Large slipware dishes (known as 'chargers') depicting the Boscobel Oak were made by the Staffordshire potter ...
Other tree species offered in the sale include: Long Regal Prince Oak, Scarlet Curls Willow, Lindsey's Skyward Bald Cypress, and Cascade Falls Weeping Bald Cypress.
Acute oak decline (AOD) is a disease that infects oak trees originally described in the UK. It mainly affects mature oak trees of over 50 years old of both Britain's native oak species: the pedunculate oak ( Quercus robur ) and the sessile oak ( Quercus petraea ).
An oak tree shows signs of the effect of Sudden Oak Death disease at the Los Trancos Open Space Preserve near Palo Alto, Calif. on Wednesday, July 13, 2011. Crews from the California Conservation ...
Cystotheca lanestris, the live oak witch's broom fungus, is a species of mildew that infects buds and induces stem galls called witch's brooms on oak trees in California, Arizona, and Mexico in North America. [2] [3] Witch's brooms are "abnormal clusters of shoots that are thickened, elongated, and highly branched."
The foamy bark canker is a disease affecting oak trees in California caused by the fungus Geosmithia sp. #41 and spread by the Western oak bark beetle (Pseudopityophthorus pubipennis). This disease is only seen through the symbiosis of the bark beetles and the fungal pathogen .