United States Department of Agriculture
A series of maps showing spruce budworm defoliation in Minnesota, 1954-1977
Describes how to build a housing for the balance used to weigh fuel moisture sticks. The housing is easy to build, low-cost, and can be mounted on the supports of the standard cotton region shelter.
Discusses case study results of debarking whole-tree aspen and red oak chips produced with a whole-tree chipper. The results indicate promise for successful bark removal after chipping and strengthen the argument for continued research.
Describes a study of the nutritive quality and digestibility of ferilized and unfertilized tall fescue in spring, summer, and fall. The grass may be most valuable as food in early spring and late fall, and on unfertilized sites.
Oak-history forests on the poorest sites in the Upper Mississippi Valley have both low productivity and little esthetic appeal. A mixture of the native evergreen redcedar would add bearty and increase wildlife values.
The fourth inventory of Michigan's forest resources shows a 27 percent increase in growing-stock volume between 1966 and 1980, from 15.0 to 19.1 billion cubic feet.
Describes and illustrates a technique to mail and store diseased leaf samples to prevent deterioration or damaage.
Describes a method for measuring pulpwood that involves photographing loads on trucks
When managing natural resources, foresters, wildlife biologists, and other practitioners need to consider a vast array of technical information, along with a multitude of values, opinions, and perspectives - many of which may be in conflict and therefore difficult to resolve. Ongoing discussions about ecosystem management, conserving biological diversiry, adaptive...
Shows stocking density has little effect on wood specific gravity of red pine
Michigan's timber volumes increased about two-fifths since 1955 reaching 15.0 billion cubic feet of growing stock including 33.7 billion board feet of sawtimber-size material in 1966
Traces the history of USDA Forest Service fire reports, examines the most recent report, Form 5100-29, and discusses the reliability of information recorded on the 5100-29, factors influencing data accuracy, and reactions of the Ranger District personnel to wildfire reporting.
The saga of the emerald ash borer, Agrilus planipennis Fairmare (Coleoptera: Buprestidae), in North America began on 25 June 2002, when five entomologists representing Michigan State University (MSU), the Michigan Department of Natural Resources (MDNR), and the U.S. Department of Agriculture, Animal and Plant Health Inspection Service (USDA APHIS)...
Presents statistics on Minnesota's forest land area by country for 1977
Illustrates 26 bird habitats occurring in the Ozarks.
This paper describes the late-successional and old-growth forest and the northern spotted owl effectiveness monitoring plans for the Northwest Forest Plan. The effectiveness monitoring plan for late-successional and old-growth forests will track changes in forest spatial distribution, and within-stand structure and composition, and it will predict future trends.