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Oak wilt is a devastating exotic disease, killing some trees rapidly in a single season. [7] Oak wilt is an important disease in urban areas where trees are highly valued. The disease reduces property values because of the loss of trees and is economically costly to the property owner since they or the local government must pay for tree removal.
Inonotus dryadeus (syn. Pseudoinonotus dryadeus), commonly known as oak bracket, warted oak polypore, weeping polypore or weeping conk, is an inedible species of fungus belonging to the genus Inonotus, which consists of bracket fungi with fibrous flesh. Most often found growing at the base of oak trees, it causes white rot and decay of the trunks.
Phytophthora ramorum. Phytophthora ramorum is the oomycete known to cause the disease sudden oak death (SOD). The disease kills oak and other species of trees and has had devastating effects on the oak populations in California and Oregon, as well as being present in Europe. Symptoms include bleeding cankers on the tree's trunk and dieback of ...
Cryphonectria parasitica is a parasitic fungus of chestnut trees. This disease came to be known as chestnut blight. Naturally found in South East Asia, accidental introductions led to invasive populations of C. parasitica in North America and Europe. In the first half of the 20th century, the fungal disease had a devastating economic and social ...
California. 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. The bark beetles target oak trees and bore holes ...
In mature trees the disease is generally less damaging, but in combination with other factors such as defoliation by insects can contribute to tree decline. A study of the effects of E. alphitoides on Quercus robur found it decreased stomatal conductance by 15–30%, did not affect the leaf mass to area ratio, decreased the nitrogen content of ...
Taphrina caerulescens is a species of fungus in the family Taphrinaceae. It is a pathogenic Ascomycete fungus that causes oak leaf blister disease on various species of oak trees (Quercus spp.). The associated anamorph species is Lalaria coccinea, described in 1990. [2] This disease causes lesions and blisters on Oak leaves.
Bur oak blight (BOB) is a fungal disease that is relatively new to the plant pathogen field. BOB started to appear in Midwestern states in the 1990s. The first few diagnoses pointed to a common fungus, Tubakia dryina, as the culprit. However upon further research BOB was said to be caused by a new unnamed species of Tubakia, later named Tubakia ...