• Beech bark disease is a complex disease resulting from the interaction of a sap-sucking insect, known as beech scale or Crytococcus fagisuga, and two species of fungi, Nectria coccinea var. (panoramavillapark.hu)
  • This disease is caused by a combination of an introduced beech scale insect (Cryptococcus fagisuga) from Europe, coupled with a nectria fungus. (panoramavillapark.hu)
  • Associations Between Causal Agents of the Beech Bark Disease Complex [Cryptococcus fagisuga (Homoptera: Cryptococcidae) and Nectria spp. (utk.edu)
  • 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. (wikipedia.org)
  • Cryptococcus fagisuga aka Beech bark disease has been recorded as affecting common beech trees, Fagus sylvatica, in Europe since before 1849. (wikipedia.org)
  • 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. (wikipedia.org)
  • The disease occurs from an interaction between the woolly beech scale insect ( Cryptococcus fagisuga ), one of two species of the fungus Neonectria ( N. faginata or N. ditissima ), and American Beech trees. (biomedcentral.com)
  • The disease is caused by a combination of the Neonectria fungus and beech scale ( Cryptococcus fagisuga ). (msu.edu)
  • Earlier this year, we reported that high populations of the non-native insect beech scale ( Cryptococcus fagisuga ) were identified for the first time in Marinette and Sheboygan counties. (govdelivery.com)
  • Associations Between Causal Agents of the Beech Bark Disease Complex [Cryptococcus fagisuga (Homoptera: Cryptococcidae) and Nectria spp. (utk.edu)
  • By taking core samples of the affected trees and comparing growth patterns to meteorological records, the researchers determined that the diseased and dying beeches had been weakened by dense populations of the invasive scale insect Cryptococcus fagisuga, which was favored by drought conditions and warmer winter temperatures from 1999 to 2002. (umaine.edu)