Economic Guides for Blister-rust Control in the East
Economic Guides for Blister-rust Control in the East

Author: Robert Jay Marty

Publisher:

Published: 1966

Total Pages: 20

ISBN-13:

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S2White pine blister rust (Cronartium ribicola, Fischer) is a virulent and potentially serious disease of eastern white pine (Pinus strobus, L.) Control of this introduced rust has been carried on since about 1910 in the eastern United States. Today, after more than 50 years of control effort, the occurrence of blister rust in this region is gratifyingly infrequent. Because of effective and continuing control programs, blister rust has been brought under control, and is not now a serious threat to pine management in most areas of the East. Yet, control must continue if blister rust is to remain under control in the future.S3.

Report
Report

Author: Northeastern Forest Experiment Station (Radnor, Pa.)

Publisher:

Published: 1966

Total Pages: 412

ISBN-13:

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Improvement in Butt-log Grade with Increase in Tree Size, for Six Hardwood Species
Improvement in Butt-log Grade with Increase in Tree Size, for Six Hardwood Species

Author: George R. Trimble (Jr.)

Publisher:

Published: 1965

Total Pages: 536

ISBN-13:

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S2Work carried out by the Northeastern Forest Experiment Station in West Virginia in the past 12 years provides useful information about the relationships between tree d.b.h. and butt-log grade. The upper logs are not included in the relationships. Being smaller and containing more knots, these upper logs are generally of lower grade than the butt logs. Thus the average grade of all material in the sawlog portion of the tree is generally lower than the average grade of the butt log. In the West Virginia data, species differences in d.b.h.-grade relationship are readily apparent. This inherent tendency for species to have different proportions of the various grades in logs of the same size is a familiar phenomenon to grade-conscious foresters who work with hardwoods. The results in this paper provide a quantitative evaluation of this tendency for six of the local species.S3.

Tree Pathology
Tree Pathology

Author: William H. Smith

Publisher: Elsevier

Published: 2012-12-02

Total Pages: 324

ISBN-13: 0323155855

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Tree Pathology: A Short Introduction is a compilation of texts about some of the significant stress factors that are capable of inducing tree injuries and diseases. It also provides an overview of some of the examples of the damage caused by each stress factors or agents. In addition, existing hypotheses related to the mechanism by which each agent causes abnormal tree physiology are reviewed. As an introduction, the book provides a discussion on the agents, mechanisms, and control of the pathological stresses of forest trees. It also offers specific examples of forest tree species, mostly from the northeastern portion of the United States, as well as examples of citrus and other fruit or jut tree species. The book then discusses all injury and disease agents including their taxonomy, morphology, physiology, and ecology. It also presents the different mechanisms of the injury and disease, control possibilities on mitigating disease influences of plants, and specific utility of the various procedures used in forest tree disease control. The materials presented in the book are based from the numerous published texts, journal articles, and research reports.