Treesearch

This is a report on the genetic differences observed among seedlings of four seed collections of Shumard oak (Quercus shumardii var. shumardii) during the first 2 years of growth. It is based on data from replicated seedbed and nursery plots at the Michaux Quercetum.

Excellent control of the white-pine weevil in young white pine plantations, by applying concentrated lead arsenate spray with knapsack sprayers, was demonstrated and reported several years ago. Since then, research has shown that a number of newer insecticides, used as emulsions, are also very effective.

Forest tree seed crops were generally poor in 1957 throughout New England, according to reports by observers. Late spring frosts and below-normal precipitation were probably responsible for poor or failing crops of some species.

This is a report on the timber resource of New Jersey. It is based on the findings of a forest survey made in 1955-56 by the Northeastern Forest Experiment Station in cooperation with the New Jersey Department of Conservation and Economic Development. The forest survey of New Jersey was part of a nationwide survey being made by the Forest Service, U.S. Department of Agriculture. NOTE: this document was scanned from a personal copy and contains hand-written notes.

White pine and fire! These two - the tree and its destroyer, fire - are keys to the history and present make-up of the research program on the Massabesic Experimental Forest at Alfred, Maine. The Forest was established in the late 1930's to study the management of eastern white pine. During World War II, it was shut down, and reopened again in 1946. Then, in 1947, the timber on 3,000 of the Forest's 3,700 acres was destroyed in the well-remembered October blow-up of wildfires, which all together seared 150,000 acres in southwestern Maine.

The one event of 1957 that most affected the forest insect and disease picture in the Northeast was the severe drought. The drought was most serious in New Jersey and the Delmarva Peninsula; eastern Maryland, Pennsylvania, and New York; and central and southern New England. Its duration was generally from mid-May to mid-August. With an area from New York to Philadelphia taken as a center, drought severity decreased going northward and westward from the broad coastal belt.

Northern hardwood forests occupy about 9 million acres of land in New England. In recent years, these hardwood forests have made increasing contributions to the economy of this region. Their future management should be even more rewarding.

Previous work by Bramble et al , Suggitt, Trevett, and Worley et a1 has shown that high spray volumes are more effective than low volumes in the basal bark treatment of woody plants with herbicides such as 2,4,5-T in kerosene or other oils.

Eastern white pine is one of the most important sawtimber species in the Northeast. This species would have still greater potential value were it not for the white-pine weevil, Pissodes strobi (Peck), its most serious insect pest. This is a native insect that occurs throughout the range of eastern white pine. A large percentage of the white pines in natural stands and plantations have been attacked once or more; and the crooks or forks that result from attack greatly reduce the quality and quantity of timber that such stands produce.

There is not enough pine reproduction in the woodlands of southern New Jersey. This increasingly important problem, which plagues the state's Pine Region, is especially severe where seed sources for natural regeneration are poor. In some of these areas, pulpwood cuttings have removed all pines large enough to bear many cones. In other areas, wildfires have killed or damaged the seed source. If such sites are to support productive forest growth in the near future, more pine seedlings must be established through planting or direct seeding.