Download or read book A STUDY OF SOME ASPECTS OF SUSCEPTIBILITY OF PONDEROSA PINE TO ATTACK BY BLACK HILLS BEETLE written by EDWIN WALFRED MOGREN and published by . This book was released on 1955 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the Board of Regents written by University of Michigan. Board of Regents and published by . This book was released on 1954 with total page 1828 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mountain Pine Beetle Attack in Ponderosa Pine Comparing Methods for Rating Susceptibility written by David C. Chojnacky and published by . This book was released on 2000 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two empirical methods for rating susceptibility of mountain pine beetle attack in ponderosa pine were evaluated. The methods were compared to stand data modeled to objectively rate each sampled stand for susceptibly to bark-beetle attack. Data on bark-beetle attacks, from a survey of 45 sites throughout the Colorado Plateau, were modeled using logistic regression to estimate the probability of attack on individual trees from tree and stand variables. The logistic model allowed flexibility to easily scale results up to a stand level for comparison to the empirical methods. The empirical method, developed by Munson and Anhold, most closely correlated to the logistic regression results. However, the Munson/Anhold method rated all 45 study sites as either moderately or highly susceptible to bark-beetle attack, which raises concern about its lack of sensitivity. Future work on evaluating risk of bark-beetle impact should consider more than stand characteristics.

Download or read book Dissertation Abstracts written by and published by . This book was released on 1955-06 with total page 934 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Breeding Pest Resistant Trees written by H. D. Gerhold and published by Elsevier. This book was released on 2013-09-24 with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt: Breeding Pest-Resistant Trees documents the proceedings of a N.A.T.O. and N.S.F. Advanced Study Institute on Genetic Improvement For Disease and Insect Resistance of Forest Trees held in Pennsylvania State University from August 30 to September 11, 1964. This book compiles the study and research of geneticists, pathologists, entomologists, and foresters concerned with the genetic resistance of forest trees to pests and breeding programs for disease- and insect-resistant trees. This compilation is divided into three parts. The first part discusses about the résumés of research related to forest tree pest resistance by geographic regions. Part II focuses on the reports of significant research advances in the basic knowledge of disease and insect resistance of forest trees, while Part III includes the discussion of approaches and methods for genetic improvement in pest resistance of forest trees. The topics covered include the variation and inheritance of pest resistance in forest trees; environmental effects on the host-pest relationship; review of basic knowledge of forest tree pest resistance; selection for pest resistance in wild populations; and testing and evaluating inherent pest resistance. This publication is a good source for students and individuals conducting work on the resistance of forest trees to diseases and pest insects.

Download or read book Forestry Abstracts written by and published by . This book was released on 1956 with total page 1370 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Management of Ponderosa Pine in the Southwest as Developed by Research and Experimental Practice written by Gustaf Adolph Pearson and published by . This book was released on 1950 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ponderosa pine (Pinus ponderosa) is the most widely distributed conifer in North America, and one of the most valuable. Commercial stands of the species are found in all of the 15 States which lie wholly or in part west of the 102d merinian, and in all but one it rank among the most important lumber producers. In the Southwest, ponderosa pine is of particular importance since this one species makes up 88 percent of the standing saw-timber volume in the two States of Arizona and New Mexico.

Download or read book Research Note RM written by and published by . This book was released on 1994 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Paper RMRS written by and published by . This book was released on 1998 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Black Hills National Forest N F Slate Castle Project Area written by and published by . This book was released on 2009 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Forest Service Research Note written by United States. Rocky Mountain Forest and Range Experiment Stations, Fort Collins, Colo and published by . This book was released on 1976 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Buttes Forest Health Project written by Bearlodge Ranger District (Wyo.) and published by . This book was released on 2012 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Paper RM written by and published by . This book was released on 1979 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Review of Entomology written by Edward Arthur Steinhaus and published by . This book was released on 1956 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Black Hills National Forest N F Rattlesnake Forest Management Project written by and published by . This book was released on 2010 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecological Research Series written by and published by . This book was released on 1977 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book General Technical Report RMRS written by and published by . This book was released on 1998 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: