Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Gregory M, Filip"'
Autor:
Gregory M. Filip
Publikováno v:
Journal of the Botanical Research Institute of Texas. 16:272
Robert L. Mathiasen. 2021. Mistletoes of the Continental United States and Canada. (ISSN: 0883-1475; ISBN-13: 978-1-889878-66-9, flex-binding). Botanical Miscellany 58. Botanical Research Institute of Texas Press, 1700 University Dr., Fort Worth, Tex
Publikováno v:
The New phytologist. 148(3)
The following study investigates the timing and mechanism of impact of Swiss needle cast on Douglas-fir (Pseudotsuga menziesii) needle physiology (i.e. gas exchange). Swiss needle cast is a foliar disease caused by the fungus Phaeocryptopus gaeumanni
Autor:
Kristen L. Chadwick, Helen M. Maffei, Nancy Grulke, Ellis Q. Margolis, Brent W. Oblinger, Gregory M. Filip
Publikováno v:
Forest Ecology and Management. 379:11-19
Mid- to very large-sized Douglas-fir ( Pseudotsuga menzieseii var. menziesii) that were lightly- to moderately-infected by dwarf mistletoe ( Arceuthobium douglasii ) were analyzed over a 14-year period to evaluate whether mechanical pruning could era
Autor:
Jeremy B. Filip, Donald J. Goheen, Angel L. Saavedra, Ellen Michaels Goheen, Gregory M. Filip, Joshua J. Bronson, Sylvia R. Mori, Kristen L. Chadwick, Susan J. Frankel
Publikováno v:
Forest Science. 61:914-925
Four 10- to 20-year-old plantations were precommercially thinned to determine the effects on tree growth and mortality caused by armillaria and heterobasidion root diseases. The plantations represented different species compositions with one each of
Publikováno v:
Forest Pathology. 41:317-324
Commercial-aged Douglas-fir trees mechanically damaged during commercial thinning activities were investigated to quantify fungal taxa present 14years after thinning. A total of 235 wood cores from 18 damaged and 18 non-damaged control trees were obt
Publikováno v:
Western Journal of Applied Forestry. 25:136-143
In 2005, the 10-year effects of two silvicultural treatments (group-selection and shelterwood) on tree-growth loss and mortality caused by Armillaria ostoyae were compared with no treatment in a mixed-conifer forest in south-central Oregon. Ten years
Publikováno v:
Western Journal of Applied Forestry. 24:88-94
Portions of a 30-year-old stand of ponderosa pine were precommercially thinned in 1966 and commercially thinned in 2000 at age 64 years to determine the effects of thinning from below on tree growth and mortality caused by Armillaria root disease in
Publikováno v:
Western Journal of Applied Forestry. 22:278-284
A 500-ac mixed-conifer forest near Cache Mountain in central Oregon was examined in 1979, 1992, 2002, 2004, and 2005 to document causes of forest health decline and subsequent wildfire damage. The site is dominated by grand fir (Abies grandis) and po
Publikováno v:
Western Journal of Applied Forestry. 22:105-115
Tree mortality in western conifer forests is a complex process involving several related factors. Conifer mortality tends to be more common in high-elevation forests where stress from weather, insects, and disease result in higher rates of mortality
Publikováno v:
Western Journal of Applied Forestry. 21:178-184
High-elevation true fir stands on federal lands have a long history of selective harvesting. In 1989 a high frequency (89%) of Heterobasidion annosum, the cause of annosus root disease, was found in residual true fir stumps (mean, 20-in. diameter) cu