Results 101 to 110 of about 640 (135)
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The Role of Nectria in the Beech Bark Disease
Journal of Forestry, 1948Abstract The Nectria associated with the beech bark disease of the Canadian Maritime provinces, Maine, and New Hampshire is discussed with reference to its action, known distribution, probable introduction from Europe, present status, and future spread. The importance of beech in northern New England is also discussed.
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1979
This is a story of ecological succession—of interrelationships between a fungus and an insect, and the secondary roles played by other fungi and other insects. The disease, or more properly the disease complex, occurs on the American beech in the Northeastern United States and the Maritime provinces of Canada.
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This is a story of ecological succession—of interrelationships between a fungus and an insect, and the secondary roles played by other fungi and other insects. The disease, or more properly the disease complex, occurs on the American beech in the Northeastern United States and the Maritime provinces of Canada.
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Managing Beech Bark Disease: Evaluating Defects and Reducing Losses
Northern Journal of Applied Forestry, 1987Abstract Beech bark disease often produces bark defects that may result in trees being classed erronously as cull. Because of this, sale overruns occur, and sound trees are mistakenly left uncut in the woods. The disease occurs when Nectria fungi attack and kill bark predisposed by the beech scale.
Barbara S. Burns, David R. Houston
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Beech bark disease: an evaluation of the predisposition hypothesis in an aftermath forest
Forest Pathology, 2011SummaryThe beech bark disease (BBD) complex affecting American beech consists of the scale insect, Cryptococcus fagisuga, and one or more pathogenic fungi of the genus Neonectria. Following extensive above‐ground mortality of mature beech, stands can be defined by a characteristic set of conditions that are termed the aftermath zone.
J. A. Cale +3 more
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The Beech Bark Disease Today in the Northeastern U.S.
Journal of Forestry, 1972Abstract The beech bark disease, caused by fungi (principally Nectria coccinea var. faginata ) infecting minute feeding wounds made by scale insects (principally Cryptococcus fagi ) in the bark ...
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Proceedings of the first biennial Northern Hardwood Conference 2021, 2023
Laura S. Kenefic +6 more
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Laura S. Kenefic +6 more
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Environmental and Ecological Statistics, 1996
The effect of beech bark disease on tree growth was tracked using paired resistant and susceptible American beech trees in two locations in Maine. Within each site, the paired trees were chosen in close proximity and with similar morphological characteristics (e.g. stem diameter and crown class) to minimize environment effects in subsequent analysis. A
J. H. Gove, D. R. Houston
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The effect of beech bark disease on tree growth was tracked using paired resistant and susceptible American beech trees in two locations in Maine. Within each site, the paired trees were chosen in close proximity and with similar morphological characteristics (e.g. stem diameter and crown class) to minimize environment effects in subsequent analysis. A
J. H. Gove, D. R. Houston
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Effects of beech bark disease on the growth of American beech (Fagusgrandifolia)
Canadian Journal of Forest Research, 1993We studied radial growth reduction in American beech (Fagusgrandifolia Ehrh.) in relation to the level of defect induced by beech bark disease, in second-growth and old-growth northern hardwoods stands in New Hampshire. In the second-growth stand at Moose Mountain (n = 243 trees), 1989–1990 radial growth declined significantly with increasing severity
David G. Gavin, David R. Peart
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Beech Bark Disease–The Aftermath Forests are Structured for a New Outbreak
Journal of Forestry, 1975Abstract Stands of American beech in Maine–severely damaged by the beech bark disease in the 1930s and 1940s–were surveyed in 1973-74. Both disease agents (the scale Cryptococcus fagi and the fungus Nectria coccinea var. faginata) are now endemic, but few trees are dying.
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Some investigations with Beech bark disease Nectria in southern England
Forest Pathology, 1974Nectria ascospores discharged from a Beech bark diseased tree were monitored by a spore trap, and prevailing meteorological conditions were recorded. Forest and glasshouse experiments are described in which necrosis of beech bark followed wound inoculation with Nectria isolates during dormancy.
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