Treesearch

The success of broadcast-seeding of shortleaf pine (Pinus echinata Mill.) after one or several years can be determined with specified precision by a systematic sampling procedure. Seedling results often are expressed as the total number of seedlings per acre, but good distribution is equally important. The total stocking and the stocked milacre methods described here provide these data.

A number of distribution methods are currently used to market a wide variety of products manufactured by the hardwood face veneer and plywood industry in Michigan and Wisconsin. Wall paneling, door skins, and kitchen cabinet stock are major products, but specialty lines such as curved and molded plywood components for furniture, shoe heels, and golf club heads are grwoing in importance.

As part of its forest recreation research, the Northeastern Forest Experiment Station in the summer of 1964 made a survey of all privately owned campgrounds in New Hampshire, in cooperation with the New Hampshire State Planning Project. The purpose of the survey was to find out what characteristics of campgrounds - and campground management - lead to success.

Includes 627 items constituting virtually all the technical literature dealing with the ecology, silviculture, and timber products of Juglans. Material is arranged in alphabetical order by author. An index lists the items by subject matters.

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 descriptions of all forms from eggs to adults of conotrachelus naso LeConte, C. carinifer Casey, C. posticatus Boheman, as well as keys for mature larvae, pupae, and adults, are presented.

The area presently designated as the Denbigh Experimental Forest was established in 1931 as a location where large-scale afforestation could be tested in the Northern Great Plains. More than 40 species of trees have since been planted on 270 acres within the forest, which is located at an elevation of 1,486 feet in the sand hills of McHenry County in north-central North Dakota. The major soil type there is a Valentine fine sand. The early planting, begun in 1933, was completed in 1940. Ponderosa pine (Pinus ponderosa Laws.), one of the most extensively planted species, was used in 48...

The white-pine cone beetle (Conophthoras coniperda ( Schwarz ) ) can cause extensive damage to cones of eastern white pine (Pinus strobus L.) and can severely hamper natural reproduction of this species (Graber 1964). This insect also will be a potential pest of seed orchards for the production of genetically superior seed if and when such orchards are established. It may be assumed that in certain areas, and for certain purposes, these seed orchards will contain white pine species that are exotic to the Northeast, or are hybrids of P. strobus and exotic species. Knowledge about the...

Virginia pine (Pinus virginiana Mill.) normally develops such dense stands on suitable sites, as in old fields, that thinning would seem to be a good silvicultural practice. Seedling stands may have 10,000 or more stems per acre, and stands 20 years old may still contain 2,000 trees. Even though rapid differentiation of crowns occurs in this intolerant species, resulting in early suppression of many stems and much mortality, thinning still might be expected to favor the development of greater volumes or more valuable products.