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Author : W. C. Schmidt
Publisher :
ISBN 13 :
Total Pages : 9 pages
Book Rating : 4.:/5 (79 download)
Download or read book Effect of Fertilization on Western Spruce Budworm Feeding in Young Western Larch Stands written by W. C. Schmidt and published by . This book was released on 1983 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David G. Fellin
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (319 download)
Download or read book How Does Western Spruce Budworm Feeding Affect Western Larch? written by David G. Fellin and published by . This book was released on 1973 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: This pictorial describes how western spruce budworm larvae feed on young western larch and the trees' responses to this damage. Larvae feed not only on the current year's foliage-their usual diet on most coniferous hosts-but also sever stems of current year's shoots. Multiple-topped, bushlike trees develop in direct response to the amount and type of damage. As a result, trees cannot maintain straight boles and good form. Sustained budworm damage could conceivably influence the management of western larch-one of the more important conifers in the northern Rockies.
Author : Clinton E. Carlson
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (31 download)
Download or read book Spruce Budworms Handbook written by Clinton E. Carlson and published by . This book was released on 1989 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Wyman C. Schmidt
Publisher :
ISBN 13 :
Total Pages : 74 pages
Book Rating : 4.:/5 (657 download)
Download or read book Western Spruce Budworm Damage Affects Form and Height Growth of Western Larch written by Wyman C. Schmidt and published by . This book was released on 1971 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atypical feeding behavior of the western spruce budworm (Choristoneura occidentalis Freeman) reduces rapid juvenile height growth and deforms young western larch (Larix occidentalis Nutt.). On western larch, budworm larvae do not confine their feeding to foliage, their usual diet on other conifers; they also feed on and sever stems of current year terminal and lateral shoots. We conducted a five-year study in young larch to determine their susceptibility to this type of damage and how tree form and height growth were affected. We found that: (1) amount and severity of budworm damage increased annually, (2) trees in lightly stocked stands appeared more susceptible to damage when budworm populations were low, but there were no apparent differences by stand density when budworm populations were high, (3) all trees were damaged sometime during the study and no genetic immunity was detected, (4) severance of the terminal shoot was the most serious type of budworm damage to larch, (5) severances reduced net height growth at least one-fourth and resulted in forked, bushy-topped trees, and (6) because of the strong apical dominance characteristic of larch, specific forks in the tree did not persist more than five years.
Author : David G. Fellin
Publisher :
ISBN 13 :
Total Pages : 25 pages
Book Rating : 4.:/5 (13 download)
Download or read book How Does Western Spruce Budworm Feeding Affect Western Larch?. written by David G. Fellin and published by . This book was released on 1973 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.X/5 (1 download)
Download or read book Silvicultural Strategies to Reduce Stand and Forest Susceptibility to the Western Spruce Budworm written by and published by . This book was released on 1989 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 564 pages
Book Rating : 4.3/5 (91 download)
Download or read book General Technical Report NE written by and published by . This book was released on 1980 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 156 pages
Book Rating : 4.:/5 (319 download)
Download or read book Proceedings written by and published by . This book was released on 1983 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Martha H. Brookes
Publisher :
ISBN 13 :
Total Pages : 130 pages
Book Rating : 4.F/5 ( download)
Download or read book Managing Trees and Stands Susceptible to Western Spruce Budworm written by Martha H. Brookes and published by . This book was released on 1985 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 212 pages
Book Rating : 4.3/5 (121 download)
Download or read book Technical Bulletin written by and published by . This book was released on 1987 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Richard R. Mason
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (319 download)
Download or read book A Pilot Experiment of Forest Fertilization During an Outbreak of the Western Spruce Budworm in Northeastern Oregon written by Richard R. Mason and published by . This book was released on 1998 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 228 pages
Book Rating : 4.3/5 (91 download)
Download or read book General Technical Report WO. written by and published by . This book was released on 1977 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David G. Fellin
Publisher :
ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (319 download)
Download or read book Western Spruce Budworm written by David G. Fellin and published by . This book was released on 1982 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alex L. Shigo
Publisher :
ISBN 13 :
Total Pages : 882 pages
Book Rating : 4.F/5 ( download)
Download or read book Tree Defects written by Alex L. Shigo and published by . This book was released on 1983 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Geral I. McDonald
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (319 download)
Download or read book Resistance of Douglas-fir to Western Spruce Budworm written by Geral I. McDonald and published by . This book was released on 1979 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert D. Harvey (Jr.)
Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.:/5 (13 download)
Download or read book Effects of Western Spruce Budworm Feeding on Douglas-fir and True Firs of Eastern Oregon written by Robert D. Harvey (Jr.) and published by . This book was released on 1980 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (319 download)
Download or read book Summary of Draft Environmental Impact Statement for Managing Western Spruce Budworm in Oregon and Washington written by and published by . This book was released on 1988 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
