Treesearch

Some of the earliest successful forest plantations in the United States were those of eastern white pine (Pinus strobus) established about 1900 on the Biltmore Estate near Asheville, North Carolina. Since that time white pine has played an increasingly important role in reforestation in the southern Appalachians. Growth is rapid, the wood is valuable, and white pine blister rust (Cronartium ribicola) and white pine weevil (Pissodes strobi) are less common than in the northern part of the range.

This booklet briefly describes three ways of estimating the capabilities of soils in the Midsouth for growing cherrybark oak (Quercus falcata var. pagodaefolia Ell.). The procedures were developed at the Stoneville Research Center with data from 285 sample plots' in the area mapped in figure 1. The total height that a free-growing forest tree will reach at age 50 years was taken as the standard measure of site index, or site capability.

This review of knowledge concerning the effects of high temperatures on plants was undertaken in preparation for research aimed at determining how forest fires affect physiological processes in woody species. Major subjects discussed include morphological and physiological responses to high temperatures, external and internal factors governing these responses, recognition and assessment of fire damage, and ecological effects of fire, including benefits from prescribed burning. Consideration is given also to techniques for measuring high temperatures outside and inside the plant, and for...

The period between the completion of Florida's first Forest Survey in 1936 and the third in 1959 spans nearly a quarter of a century. In 1936, the era of large sawmills was coming to a close, but half the lumber was still produced b ya dozen large mills. Taxes were high and lumber prices had no recovered from the depression slump

Degrade caused by brown stain and blue stain in eastern white pine was virtually eliminated by the use of sap stain chemicals and sodium azide. Combinations of buffered sodium azide with both sodium pentachlorophenate plus borax and buffered ethyl mercury phosphate were effective.

1960's Pulpwood harvest in the south reached an all-time high of 23.551.000 cords-57 percent of the Nation's total. At year's end. the South had 81 pulpmills with a total daily capacity of more than 50.000 tons. Seven mills outside the South also were using wood grown within the region.

Predictions of future timber yields are necessary for formulating management plans and for comparing timber growing with alternative land uses. One useful tool for making these predictions is a set of yield tables.

A lime-fertilizer trial demonstrated how pine seedling chlorosis in the Stuart Nursery 3 near Poll ck, La., could be minimized by adjusting soil pH to l3etween 5.5 and 6,0 and moderately fe rtilizing to maintain growth. Exact rates of fertilization were not established because seedlings were using plant food remaining from earli r applications. The trial showed that improper use of lime and fertilizer creates imbalances between iron and manganese in the seedlings, and that this condition may induce chlorosis.

SLASH pine, like many of the early settlers, came to central and southwest Louisiana from east of the Mississippi River. It is flourishing in plantations 100 to 200 miles west of its natural range, which extends from South Carelina through the Gulf South to the eastern edge of Louisiana's Florida Parishes. In fact, it does so well that most planting on former longleaf pine land west of fthe Mississippi River is with this species.

During the past fifteen years numerous herbicides for control of woody plants have been evaluated at the Alexandria Research Center of the Southern Forest Experiment Station. Herbicides have proved effective as basal treatments when applied to cut surfaces, as basal stem sprays, or when applied directly to the soil at the base of trees. The method to use will depend largely on the species, size of stems to be treated, density of stand, and the herbicide that is used.