minor importance host:www.na.fs.fed.us

Listing 1 - 10 from 36 for minor importance

Abies lasiocarpa (Hook
... number of cone and seed insects of subalpine fir have been identified but their relative importance, frequency of occurrence, and the magnitude of losses are not known (39). Some seed ... talus slopes or near timberline (22). Under closed-forest conditions, reproduction by layering is of minor importance. Sapling and Pole Stage to Maturity Growth and Yield- On exposed sites near timberline, subalpine ...
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Chamaecyparis thyoides (L
... Florida and west to southern Mississippi. Atlantic white-cedar forests, however, have always been of minor importance because the scarcity of suitable sites makes distribution of the species within the coastal belt ...
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Libocedrus decurrens Torr
... account for half of the stems in a stand (20,26), incense-cedar is a minor component of the cover types in which it is found. These cover types include Pacific ... , insects usually account for greater losses. Cutworms destroy many seedlings. Rodents are generally of only minor importance. During a 5-year period, 53 percent of the 1- to 2-month-old incense ...
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Acer rubrum L
... glomeratus infects branch stubs and wounds on the stem and is most important. Second in importance is Oxyporus populinus, which forms a small, white fruit body that often has moss ... Schizoxylon, Strumella, and others (48). Red maple is susceptible to many leaf diseases, generally of minor importance. It is seldom or seriously damaged by root diseases, although Armillana mellea can enter through ...
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Quercus alba L
... (Type 53), and Yellow-Poplar-White Oak-Northern Red Oak (Type 59). It is a minor component of the following 28 other forest types: Northern Forest Region 14 Northern Pin Oak ... various scale insects, gall-forming insects, and twig pruners, but most of these are of minor importance. White oak acorns are commonly attacked by insects, in some cases affecting half the total ...
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... available in the literature. The following notes on specific points should be helpful. Varieties The importance of a variety within a species differs. Some varieties, particularly those important to forestry, ... hardwoods. Miscellaneous Publication 1146, 9 p., 313 maps; 3. Minor western hardwoods. Misc. Publ. 1314, 13 p., 290 maps; 4. Minor eastern hardwoods. Misc. Publ. 1342, 17 p., 230 maps; ...
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Abies concolor (Gord
... Mountain maple, and blue spruce-Engelmann spruce/forb (Senecio spp.). White fir is a minor climax component in the Douglas-fir-southwestern white pine/grass (Muhlenbergia spp.), blue spruce ... ponderosa pine (37). As intensive management of this productive species increases, so will the importance of mechanical injury. Studies in Oregon and California have shown that conventional logging techniques ...
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Abies magnifica A
... is more frost resistant than white fir and about equal to Jeffrey pine (19). The importance of mechanical injury increases as intensive management of dense young red fir stands increases. Studies ... of consequence on established red fir. Even during outbreak phases the damage caused is apparently minor and temporary (13). The most severely damaging insect pest on red fir is the fir ...
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Chamaecyparis nootkatensis (D
... timber has come from logging mixed old-growth stands in which the species is a minor component. Because of its slow rate of growth in relation to other commercial species, there ... . M. 1976. A review of yellow cedar (Chamaecyparis nootkatensis [D. Don] Spach) extractives and their importance to utilization. Wood and Fiber 8(3):172-176. Eyre, F. H., ed. 1980. Forest ...
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Larix laricina (Du Roi) K
... on the north and the Alaska Range on the south; three minor areas are near the Alaska-Yukon border. - The native range of ... Type 38) and Black Spruce-Tamarack (Type 13) and is a minor component in the following types (11): 1 Jack Pine 5 ... on tamarack cones and seeds, but little is known about their importance. Those that feed inside cones include the spruce coneworm (Dioryctria reniculelloides) ...
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