Treesearch

Black cherry (Prunus serotina Ehrh.) is the largest of the native cherry trees of the United States. It may grow to more than 100 feet in height, and to as much as 5 feet in diameter. It is the only species of its genus that provides lumber for commerce. And this lumber, because of its stability and its superior working qualities, is one of the most precious of cabinet woods.

The Adirondack region of New York is a land of many lakes and streams. It feeds water into Lake Champlain, Lake Ontario, the St. Lawrence River, and the Hudson River. Much of this streamflow comes from the melting of the spring snowpack in the Adirondacks.

The two building decay fungi, the European Merulius lacrymans Fr. and the native Poria incrassate (Berk. & Curt.) Burt., do not often become established in buildings. But when they do, these fungi can cause serious damage to structural timbers. In extreme cases they have advanced to the second and third floor of buildings. This is possible because of their special ability to conduct water from the soil to the point of attack.

The number of year-old yellow-poplar (Liriodendron tulipifera L.) seedlings grown from equal quantities of seed varies as much among individual seed trees within a stand as among stands of different geographic location. Moreover, production will vary from one year to another. This information was obtained from an experiment begun in the Central States in 1952 to study the effects of seed source on growth and development of yellow-poplar plantations.

This report presents the results of a survey of the forests of Iowa, a part of the national survey of forest resources. The purposes of this survey are: 1. To make a field inventory of the present supply of standing timber. 2. To find out how fast this supply is being increased through growth. 3. To find out how much it is being diminished through industrial and domestic uses, fire, insects, disease, and other factors. 4. To determine the present consumption of forest products. 5. To interpret and correlate these findings to aid in the formulation of private and public forest policies....

Little is known about the effects of thinning upon hardwoods in southern New Jersey. To supply some of this needed information, State foresters have established several thinning studies. This research note reports the results of two of these studies, both located in stands of the pin oak-sweetgum type. One study was in Salem County, the other in Cumberland County.

What kind of natural regeneration follows cutting in the bottomland hardwoods of southern New Jersey?

Removing bark from standing trees with sodium arsenite is an inexpensive but efficient way to produce peeled pulpwood. About 200,000 cords, principally hardwoods, are produced annually by chemi-peeling, a technique that is fast replacing old-fashioned sap-peeling as a means of debarking in the woods.

Forest tree seed crops in 1958 were considerably better than those in 1957, according to observers. However, heavy and medium seed crops of some species were spotty in occurrence. Late spring frosts were probably responsible for poor or failing crops of some species in Vermont, New Hampshire, and northwestern Connecticut. Cone weevils were reported damaging the white pine crop in southwestern Maine, southern New Hampshire, and central and northwestern Massachusetts. Insects also damaged seed of white spruce in northern Maine, balsam fir in south-central Maine, and hemlock locally in...

The damage that deer can do to both planted and natural tree seedlings is vividly demonstrated by a l/l0-acre fenced exclosure at Hickory Run State Park in Carbon County, Pennsylvania. Here, by comparing the growth of trees that have been browsed by deer with the growth of trees that have been protected from deer by the fence, one can see the injurious effects of browsing strikingly revealed.