![]() ![]() This article featured in the INSPIRED: Forestry research report - Read the full issue! However, differences in the timing and conditions under which either species produce fruiting bodies may bias these disease measurement methods. ditissima in many stands in the aftermath forest. faginata is the dominant and more aggressive pathogen, to the point of completely excluding N. Surveys based on fruiting body (perithecia) collections have suggested that N. ditissimaīeech bark disease is caused by the combined damage from the felted beech scale insect ( Cryptococcus fagisuga) and then infection by two presumptively native fungal pathogens ( Neonectria faginata and Neonectria ditissima). The goal of this research was to understand how the fungal pathogens in the BBD system are currently distributed across the full range of this disease and how beech tree bark responds to insect and pathogen attack. Despite over a century of research on this important forest disease, scientists still lack a precise understanding of the contributions of two fungal pathogens to the progression of the disease and the role of the felted beech scale in initiating BBD. While the disease does kill trees, beech remains an important part of the forest ecosystem, even after many decades of infection. Windsteinīeech bark disease (BBD) is a widespread cankering disease of American beech ( Fagus grandifolia) caused by invasive felted beech scale insects feeding on the trees and the subsequent infection by specific fungal pathogens. ![]() This research was published in the INSPIRED: A Publication of the New Hampshire Agricultural Experiment Station (Winter 2023) Researchers: J. ![]()
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