Treesearch

A mixture of 2,4,5-T and water, applied in frills, is a cheap and effective method of deadening cull hardwoods in the Mississippi Delta.

Slash pine (Pinus elliottii Engelm.), including its variation South Florida slash pine recently distinguished as a new botanical variety, has been known by several different scientific names. As a result, the common name slash pine is more precise and clearer than scientific names. The slash pine of southern Florida differs from typical slash pine in a few characters important in forestry, such as seedling, wood, and resin production. A study of the botanical nomenclature and geographic variations of this valuable tree species is therefore appropriate.

This booklet describes the work of the Alexandria Research Center. The Center is a field unit of the Southern Forest Experiment Station, Forest Service, U. S. Department of Agriculture. Its special mission is to find practical solutions to the most urgent land-management problems of the cutover longleaf pine lands west of the Mississippi River. The Research Center was established in July 1946. It did not have to start from scratch, however, for it was able to draw on work begun in 1934 by Forest Service technicians stationed in New Orleans. In this early period, Philip C. Wakeley, working...

An entirely new concept of tree measurment was announced by the author in 1948 (11). Since the original theory and applications have subsequently been b roadened considerably, it seems advisable to publish the entire development in readily usable form, along with other material helpful in tree measurement.

1954 completed the fiftieth year of operation of the U. S. Forest Service and the thirty-fourth year for the Southern Forest Experiment Station. The half century just past has brought dramatic changes in the forests of the South and to the people and industries dependent upon them.

Most southern hardwood veneer and plywood plants have some method of classifying logs by grade to control the purchase price paid for logs bought on the open market. Such log-grading systems have been developed by experience and are dependent to a large extent upon the ability of the grader and his knowledge of veneer grades and yields required for the specific product produced by his company. These rule-of-thumb grading systems are often very inaccurate and inconsistent. Manufacturers of both high and low grade veneer recognize the need for a veneer-log grading system that can be easily...

In 1953 pulpwood production in the South amounted to 16,127,000 cords, 61 percent of the total 1953 receipts of domestic pulpwood at all mills in the United States. Southern production in 1953 was 10.7 percent more than in 1952 and 14.7 percent more than in 1951. The harvest of pine pulpwood was 14,147,600 cords, or 9.7 percent more than in 1952. Hardwood production, exclusive of dead chestnut, amounted to 1,918,300 cords, 13.4 percent more than in 1952. The trend is toward a gradual increase in the proportion of hardwood in the total pulpwood cut. Only 9 percent of the pulpwood cut in...

The frequent shortages of loblolly pine seed for natural regeneration prompted investigation of ways to stimulate seed production of seed trees. Partial girdling failed because, as applied, it was too mild an injury. Fertilization was not effective with 40-year-old trees but significantly increased the cone crop of 25-year-old trees. As explained in summary, the amount of fertilizer may have been inadequate for the 40-year-old trees.