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Identification, Life Cycle, And Presence Of Nectria Species Associated With Beech Bark Disease In The Great Smoky Mountains National Park And The Effectiveness Of Nematogonum Ferrugineum As A Biocontrol, Brenda A. Rutherford
Masters Theses
Two species of Nectria, N. galligena Bresadola and N. coccinea var. faginata Lohman, Watson, and Ayers, are associated with beech bark disease (BBD) in North America. In 1993, beech bark disease was discovered in the Great Smoky MOuntains National Park (GSMNP).
Ten sites for permanent plots were selected for incidence of the disease at different elevations in the GSMNP. These plots were rated four times in 1994 and 1995 for the presence of two scale insects, Cryptococcus fagisuga Lindinger and Xylococculus betulae (Pergande) Morrison, and the presence of perithecia of Nectria spp. The beech trees in each plot were also …