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  1. Do Pine Gall Weevils Affect Cone Production in Red Pine?

    Red pine branchlets with and without weevil galls did not differ significantly in production of conelets.

    Author(s):
    William J. Mattson
    Year:
    1969
    Keywords:
    Red pine, conelets, weevil
    Source:
    Research Note NC-71. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station

  2. Relation of snowpack Accumulation to Red Pine Stocking

    A snow accumulation study was conducted in a 33-year-old red pine plantation thinned to different stocking levels. Snowpack water content increased an average of 2 percent for each 10 square feet of basal area reduction, within the range of 60 to 180 square feet of basal area. Reducing plantation stocking from 180 to 60 square feet of basal area per acre would result...

    Author(s):
    Edward A. Hansen
    Year:
    1969
    Keywords:
    snowpack, red pine
    Source:
    Research Note NC-85. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station

  3. The Germination of Several Tree Species in Plastic Greenhouses

    The technique of growing tree seedlings in plastic greenhouses is being evaluated for red pine, jack pine, white spruce, and yellow birch at the Chittenden Nursery in northern Lower Michigan. Both a long growing season and a normal-length growing season in plastic greenhouses were compared with standard outdoor nursery beds (control). First-year results showed that...

    Author(s):
    Howard M. Phipps
    Year:
    1969
    Keywords:
    germination, plastic greenhouses
    Source:
    Research Note NC-83. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station

  4. Height-diameter equations for young-growth red fir in California and southern Oregon

    Total tree height of young-growth red fir can be estimated from the relation of total tree height to diameter outside bark at breast height (DOB). Total tree heights and corresponding diameters were obtained from stem analyses of 562 trees distributed across 56 sampling locations in the true fir forest type of California and Oregon. The resulting equations can predict...

    Author(s):
    K. Leroy Dolph
    Year:
    1989
    Keywords:
    Abies magnifica, height estimation, California, Oregon
    Source:
    Res. Note PSW-RN-408. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 4 p

  5. Bionomics of Eucosma monitorana (Lepidoptera: Tortricidae) attacking red pine cones in Wisconsin

    A localized infestation of Eucosma monitorama Heinrich was studied in 1963 and 1964 in southern Wisconsin. Adults are secretive, weak flyers but several were collected in May with sticky trap-boards and light traps. Adult emergence and flight occur at time of red pine pollen release. Eggs were not found in macro- and micro-scopic examinations of...

    Author(s):
    Stanley J. Barras; Dale M. Norris
    Year:
    1969
    Keywords:
    Source:
    Annals of the Entomological Society of America, Vol. 62(6): 1285-1290

  6. Dwarf mistletoe in red and white firs in California–23 to 28 years after inoculation

    Spread and buildup of dwarf mistletoe, Arceuthobium abietinum, was studied on inoculated white fir, Abies concolor, and red fir, A. magnifica, in northern California for 23 to 28 years. At the end of these studies (1986), and in the absence of overstory infection, 13 of 23 trees had dwarf mistletoe populations...

    Author(s):
    John R. Parmeter Jr.; Robert F. Scharpf
    Year:
    1989
    Keywords:
    dwarf mistletoe, population dynamics, epidemiology, vertical spread, red fir, white fir, Abies concolor, Abies magnifica, Arceuthobiun abietinum, Viscaceae, California
    Source:
    Res. Note PSW-RN-406. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 5 p

  7. Nonlinear equations for predictiing diameter inside bark at breast height for young-growth red fir in California and southern Oregon

    Inside bark diameters of young-growth red fir can be estimated from the relationship of inside bark diameter 10 outside bark diameter at breast height. Inside and outside bark diameter were obtained from stem analyses of 562 trees distributed across 56 sampling locations in the true fir forest type of California and southern Oregon. The resulting equation can predict...

    Author(s):
    K. Leroy Dolph
    Year:
    1989
    Keywords:
    Abies magnifica, diameter estimation, bark thickness, past diameters, California, Oregon
    Source:
    Res. Note PSW-RN-409. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 4 p

  8. Development and Evaluation of an Expert System for Diagnosing Pest Damage of Red Pine

    An expert system for diagnosing pest damage of red pine stands in Wisconsin, PREDICT, runs on IBM or compatible microcomputers and is designed to be useful for field foresters with no advanced training in forest pathology or entomology. PREDICT recognizes 28 damaging agents including species of mammals, insects, and pathogens, as well as two types of abiotic damage....

    Author(s):
    Daniel L Schmoldt; George L. Martin
    Year:
    1989
    Keywords:
    Source:
    Forest Science. June, 1989: 364-387.

  9. Scleroderris Canker in the Lake States - A Situation Report, 1968

    The history of Scleroderris canker in the Lake States Region is reviewed. U.S.D.A. Forest Service studies on the distribution, degree of infection, rate of spread, and general biology of the disease organism are described. On National Forest land in Upper Michigan and northern Wisconsin, where the disease is most serious, 66 percent of the red pine plantations and 88...

    Author(s):
    Darroll D. Skilling; James T. O'Brian
    Year:
    1969
    Keywords:
    Scleroderris Canker, Lake States, Scleroderris lagerbergii
    Source:
    Research Note NC-73. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station
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