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The disease currently affects much of the eastern and central US, from northern New York to Central Texas. [22] It is particularly common in the Midwest where conditions are usually favorable for spore production and beetle activity during spring and early summer. Oak wilt is a major problem in Illinois, Iowa, Michigan, Minnesota, Texas, and ...
Oak wilt is a fungal caused by Bretziella fagacearum, is a disease originating in eastern Russia. It can slowly or quickly kill an oak tree when the tree reacts to the fungus by plugging its own cambial tissue while attempting to block the spread of the fungus. This plug prevents the cambium vascular tissue from delivering nutrients and water ...
Quercus falcata, also called southern red oak, spanish oak, [4] bottomland red oak or three-lobed red oak is an oak (part of the genus Quercus).Native to the southeastern United States, it gets its name the "Spanish Oak" as these are the areas of early Spanish colonies, whilst "southern red oak" comes from both its range and leaf color during late summer and fall. [5]
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The acorns of the Shumard oak provide food for various songbirds, game birds such as wild turkey and quail, waterfowl, white-tailed deer, feral hogs, and various rodents such as squirrels. The leaves and twigs can also provide browse for white-tailed deer. [6] Oak wilt can attack all red oaks, including
The oak timberworm is a known vector of the destructive fungus Bretziella fagacearum, which causes oak wilt. [6] Oak wilt is major cause of oak mortality in some regions and has been detected in 24 US states. [10] Oak wilt can cause rather sudden mortality in host trees due to the disruption of sap and water flow in the xylem. [11]
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In California, goldspotted oak borer (Agrilus auroguttatus) has destroyed many oak trees, [60] while sudden oak death, caused by the oomycete pathogen Phytophthora ramorum, has devastated oaks in California and Oregon, and is present in Europe. [61] Japanese oak wilt, caused by the fungus Raffaelea quercivora, has rapidly killed trees across ...