22 авг. 2018 г. · Beech bark disease (BBD) is a devastating disease of American beech (Fagus grandifolia Ehrh.) caused by a combination of damage to the bark and vascular tissue ...

In North America, the disease occurs after extensive bark invasion by Xylococculus betulae and the beech scale insect, Cryptococcus fagisuga.

Beech bark disease occurs when an invasive beech scale insect feeds on the bark of the tree, creating cracks that allow a native canker fungi to enter.

It is caused by the non-native beech scale insect (Cryptococcus fagisuga) and a fungal pathogen (Neonectria species).

The disease is typically a result of the infestation and feeding by the beech bark scale, Cryptococcus fagisuga, predisposing beech trees to infection by two ...

This disease is caused by a combination of an introduced beech scale insect (Cryptococcus fagisuga) from Europe, coupled with a nectria fungus. While the ...

1 июл. 2022 г. · Beech bark disease has been spreading through the American beech (Fagus grandifolia) population ever since, killing countless trees and altering ...

15 июн. 2022 г. · It occurs when the non-native beech scale, Cryptococcus fagisuga, feeds on beech trees and creates fissures in the bark, allowing Neonectria ...

One type of spore is produced in fruiting bodies called perithecia that occur in clusters on the bark. The perithecia are tiny, bright red, and lemon shaped ...