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Beech bark disease is a disease that causes mortality and defects in beech trees in the eastern United States, Canada and Europe. [1] [2] [3] In North America, the disease occurs after extensive bark invasion by Xylococculus betulae and the beech scale insect, Cryptococcus fagisuga. [4]
Cryptococcus fagisuga, commonly known as the beech scale or woolly beech scale, is a felted scale insect in the superfamily Coccoidea that infests beech trees of the genus Fagus. It is associated with the transmission of beech bark disease [ 3 ] because the puncture holes it makes in the bark allow entry of pathogenic fungi which have been ...
Beech bark disease has become a major killer of beech trees in the Northeastern United States. This disease occurs when the European beech scale insect, Cryptococcus fagisuga, attacks the bark, creating a wound that is then infected by Neonectria ditissima or Neonectria faginata, two species of fungi. This causes a canker to develop and the ...
Beech bark disease, which is caused by the interaction of an aphid-like insect called a scale and a fungus, has also weakened some trees. On the walk through Albro Woods, Faubert found several ...
Dutch elm disease is a pathogen spread by beetles that devastated American elm, other native elms are more resistant; Thousand cankers disease is a fungus carried by a beetle that infests black walnut; Oak wilt is a fungal pathogen spread by sap beetles that infects oaks; Beech bark disease is a fungus carried by a scale insect that infests ...
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Trees have natural chemicals that keep most fungi at bay, but climate change could be making trees more vulnerable, researcher says.
Neonectria faginata is a species of fungus that affects Beech trees in North America. [1] Neonectria faginata, along with Neonectria ditissima, are the cause of beech bark disease in trees that have already been affected by beech scale Cryptococcus fagisuga. [2] [3] [4]