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During the past decade, Swiss needle cast (SNC) damage has intensified in many Douglas-fir plantations in the Coast Range of Oregon, particularly along the immediate north coast. In plantations with severe symptoms, growth losses and reduced tree vigor are evident, but the magnitude of growth…
Author(s): D.A. Maguire, A. Kanaskie, W. Voelker, R. Johnson, G. Johnson
Keywords: Douglas-fir plantations, Phaeocryptopus gaeumannii, Swiss needle cast, growth loss
Source: Western Journal of Applied Forestry. 17(2): 86-95
Year: 2002
The incidence of Swiss needle cast on Douglas-fir has increased significantly in recent years on the Oregon coast. Genetic variation in symptoms of disease infection, as measured by foliage traits, was assessed in two series of progeny trials to determine whether these "crown health" indicators…
Author(s): G.R. Jonhson
Keywords: resistance, Phaeocryptopus gaeumannii, Pseudotsuga menziesii, genetic gain
Source: Silvae Genetica. 51(2-3): 80-88
Year: 2002
Swiss needle cast disease of Douglas-fir (Pseudotsuga menziesii) is caused by the ascomycete fungus Phaeocryptopus gaeumannii. Symptoms of the disease are foliage chlorosis and premature needle abscission due to occlusion of stomata by the ascocarps of the pathogen, resulting in…
Author(s): Jeffrey K. Stone, Leonard B. Coop, Daniel K. Manter
Keywords: Douglas-fir, foliage disease, forest pathology, Phaeocryptopus gaeumannii, Pseudotsuga menziesii
Source: In: Pye, John M.; Rauscher, H. Michael; Sands, Yasmeen; Lee, Danny C.; Beatty, Jerome S., tech. eds. 2010. Advances in threat assessment and their application to forest and rangeland management. Gen. Tech. Rep. PNW-GTR-802. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest and Southern Research Stations: 145-156
Year: 2010
The ascomycete fungus Phaeocryptopus gaeumannii is the causal organism of Swiss needle cast (SNC), a foliage disease of Douglas-fir (Pseudotsuga menziesii). The disease was first described in forest plantations in Europe in the 1920s (Boyce 1940). It has since been determined that P. gaeumannii is…
Author(s): Patrick Bennett, Jeffrey Stone
Keywords: ascomycete fungus, Swiss needle cast (SNC), Phaeocryptopus gaeumannii
Source: In: Ramsey, A.; Palacios, P., comps. Proceedings of the 63rd Annual Western International Forest Disease Work Conference; 2015 Sept. 21-15; Newport, OR. p. 95-101.
Year: 2016
Swiss needle cast (SNC), a foliage disease of Douglas-fir (Pseudotsuga menziesii), is caused by the physical blockage of the stomata by pseudothecial ascocarps of the fungus Phaeocryptopus gaeumannii. Occlusion of the stomata results in a decrease in the ability of the host to exchange gases with…
Author(s): Patrick Bennett, Jeff Stone
Keywords: Swiss needle cast (SNC), Douglas-fir (Pseudotsuga menziesii), Phaeocryptopus gaeumannii
Source: In: Goodrich, B.; Palacios, P., comps. Proceedings of the 64th Annual Western International Forest Disease Work Conference, 2016 May 9-13, Sitka, AK. p. 19-25.
Year: 2017
Swiss needle cast (SNC) is a Douglas-fir foliage disease caused by the fungus Phaeocryptopus gaeumannii Rohde (Petrak). The spore-bearing structures of this fungus (pseudothecia) occlude the stomata in Douglas-fir needles resulting in an inhibition of gas exchange and photosynthesis, premature…
Author(s): Patrick Bennett, Jeff Stone
Keywords: Swiss needle cast (SNC), Douglas-fir foliage disease, Phaeocryptopus gaeumannii
Source: In: Cleaver, C.; Palacios, P., domps. Proceedings of the 65th Annual Western International Forest Disease Work Conference; 2017 October 2-6; Parksville, British Columbia. p. 85-92.
Year: 2018
Swiss needle cast (SNC) and its causal organism, Phaeocryptopus gaeumannii, were first detected in New Zealand in 1959 on the North Island near Taupo. Approximately 10 years later, the disease made its first appearance on the South Island (Kimberley et al. 2011). While the environmental factors…
Author(s): Patrick Bennett, Jeffrey Stone
Keywords: Swiss needle cast (SNC), Phaeocryptopus gaeumannii
Source: In: Ramsey, A.; Palacios, P., comps. Proceedings of the 63rd Annual Western International Forest Disease Work Conference; 2015 Sept. 21-15; Newport, OR. p. 103-107.
Year: 2016
Stored non-structural carbohydrates (NSCs) could play an important role in tree survival in the face of a changing climate and associated stress-related mortality. We explored the effects of the stomata-blocking and defoliating fungal disease called Swiss needle cast on Douglas-fir carbohydrate…
Author(s): B. J. Saffell, F. C. Meinzer, D. R. Woodruff, D. C. Shaw, S. L. Voelker, B. Lachenbruch, K. Falk
Keywords: growth limitation, non-structural carbohydrates, Phaeocryptopus gaeumannii, Pseudotsuga menziesii, Swiss needle cast
Source: Tree Physiology. 34(3): 218-228.
Year: 2014
https://www.fs.usda.gov/treesearch/search/query?f%5B0%5D=publication_keywords%3APhaeocryptopus%20gaeumannii