Download or read book Distribution of Redwood Caused by the Balsam Woolly Aphid in Fraser Fir of North Carolina written by Gene D. Amman and published by . This book was released on 1970 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examination of 5-foot sections of felled Fraser fir, Abies fraseri (Pursh) Poir., trees infested or killed by the balsam woolly aphid, Adelges piceae (Ratzeburg), revealed that the height of the first annual ring of aphid-caused redwood increased as the height of the trees increased. The number of red rings varied from two in a tree 5 inches in d.b.h. to five or six in all trees 9 or more inches in d.b.h., indicating that larger trees can sustain aphid attacks for longer periods before death than can smaller trees.

Download or read book Distribution of Redwood Caused by the Balsam Woolly Aphid in Fraser Fir of North Carolina written by Gene D. Amman and published by . This book was released on 1970 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Distribution of Redwood Caused by Balsam Wooly Aphid in Fraser Fir of North Carolina written by and published by . This book was released on 1970 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Distribution of Redwood Caused by the Balsam Woolly Aphid in Frasir Fir of North Carolina written by Southeastern Forest Experiment Station (Asheville, N.C.) and published by . This book was released on 1970 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book USDA Forest Service Research Note SE written by and published by . This book was released on 1968 with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Infestation Trends of Balsam Woolly Aphid in an Abies Alba Plantation in North Carolina written by Gene D. Amman and published by . This book was released on 1971 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book USDA Forest Service Research Note SE written by Southeastern Forest Experiment Station (Asheville, N.C.) and published by . This book was released on 1968 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Balsam Woolly Aphid written by Robert Imre Gara and published by . This book was released on 1972 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Resume of Prescribed Burnings on the Piedmont National Wildlife Refuge written by Eugene Czuhai and published by . This book was released on 1968 with total page 862 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Annotated Bibliography of the Balsam Woolly Aphid Adelges Piceae Ratzeburg written by Hugh O. Schooley and published by . This book was released on 1981 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Recent Publications of the Southeastern Forest Experiment Station written by Southeastern Forest Experiment Station (Asheville, N.C.) and published by . This book was released on 1970 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wood Variation written by Bruce J. Zobel and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wood is the usual end product of a forestry operation. Because of its importance, numerous studies have been made relative to wood prop erties, the causes of wood variation, and how best to develop wood for desired products. There is voluminous literature related to these subjects, but it is neither well known nor appreciated by foresters because the publications are often not available or are not well understood by the forester or by those who use the wood. Frequently, the literature is confusing and contradictory, making it difficult for the nonspecialist to use what information is available. In order to produce and use wood efficiently, the variation pat terns within trees, among trees within species, and among species must be understood. This also requires some knowledge of the causes of variation and the effects of different wood properties upon utiliza tion. The information about variation patterns, their causes, and con trol and effect upon the product must be known by the tree grower, the tree breeder, and the tree harvester as well as by those who ultimately convert wood into a final, salable product.

Download or read book Field Keys to Predators of the Balsam Woolly Aphid in North Carolina written by Gene D. Amman and published by . This book was released on 1970 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Information Report written by and published by . This book was released on 1981 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Principles of Forest Entomology written by Fred Barrows Knight and published by McGraw-Hill Science, Engineering & Mathematics. This book was released on 1980 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1971 with total page 2754 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Compression Wood in Gymnosperms Ecology of compression wood formation silviculture and compression wood written by Tore E. Timell and published by . This book was released on 1986 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt: