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Stem Infection by Dwarf Mistletoe in California Firs

Stem Infection by Dwarf Mistletoe in California Firs PDF Author: J. R. Parmeter
Publisher:
ISBN:
Category : Arceuthobium
Languages : en
Pages : 12

Book Description

Stem Infection by Dwarf Mistletoe in California Firs

Stem Infection by Dwarf Mistletoe in California Firs PDF Author: J. R. Parmeter
Publisher:
ISBN:
Category : Arceuthobium
Languages : en
Pages : 12

Book Description

Dwarf Mistletoe in Red and White Firs in California--23 to 28 Years After Inoculation

Dwarf Mistletoe in Red and White Firs in California--23 to 28 Years After Inoculation PDF Author: J. R. Parmeter
Publisher:
ISBN:
Category : Abies concolor
Languages : en
Pages : 6

Book Description
Spread and buildup of dwarf mistletoe, Arceuthobiun abietinum, was studied on inoculated white fir, Abies concolor, and red fir, A. magnifica, in northern Califomia for 23 to 28 years. At the end of these studies (1986), and in the absence of overstory infection, 13 of 23 trees had dwarf mistletoe populations that were the same or smaller than the original populations resulting from inoculation. Mortality of infections was the main factor limiting population increases. Live crown ratio of all trees averaged over 0.8. The average ratio of tree height growth to vertical spread rate of dwarf mistletoe was 11.5 to 1 in white fir and 7 to 1 in red fir in the Sierra Nevada. In the southem Cascades, the average ratio was 1.7 to 1 in red fir. About one fourth of the trees became infected in the bole. Of 14 additional trees infected by lateral spread of the parasite, 13 were within 6 m of the source of infection. Evidence continues to indicate that losses from dwarf mistletoes will be small in well-managed young fir stands free from infected overstory trees and properly spaced to promote good growth.

Fir Dwarf Mistletoe

Fir Dwarf Mistletoe PDF Author: Gregory M. Filip
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 8

Book Description

Dwarf Mistletoes

Dwarf Mistletoes PDF Author: Frank G. Hawksworth
Publisher: DIANE Publishing
ISBN: 0788142011
Category :
Languages : en
Pages : 427

Book Description
Contents: generalized life cycle; sexual reproductive biology; mechanism and trends of evolution; biogeography and paleogeographic history; host relationships; ecological relationships; biotic associates; host-parasite physiology; anatomy of the dwarf mistletoe shoot system; endophytic system; pathogenic effects; control; systematics: philosophy, problems, and criteria for classification; molecular systematics; formal taxonomy. Extensive bibliography. Scientific and common names; collecting and curating techniques; herbaria consulted; specimens examined; glossary; subject and species indexes.

Mistletoes of North American Conifers

Mistletoes of North American Conifers PDF Author: Brian W. Geils
Publisher:
ISBN:
Category : Conifers
Languages : en
Pages : 136

Book Description

Population Dynamics of Dwarf Mistletoe on Young True Firs in the Central Sierra Nevada, California

Population Dynamics of Dwarf Mistletoe on Young True Firs in the Central Sierra Nevada, California PDF Author: Robert F. Scharpf
Publisher:
ISBN:
Category : Arceuthobium
Languages : en
Pages : 16

Book Description
Young red firs (Abies magnifica A. Murr.) and white firs (A. concolor [Gord. & Glend.] Lindl. ex Hildebr.) on the Stanislaus National Forest, California, were inoculated with seeds of dwarf mistletoe (Arceuthobium abietinum) for 5 successive years. Only 3 to 4 percent of about 7000 seeds placed on branches resulted in infections. Second-generation infections developed and populations of the parasite built up on some trees but not on others after 17 years. Variables that appeared to regulate population increases included an 8- to 9-year average between inoculation and fruiting of plants, low rate of fruit production among female plants, low proportion of plants producing abundant fruit (100 or more/year), and irregular production of fruit on plants over the years, Death of infected branches also helped keep populations of the parasite in check. In vigorous, well-managed stands of young firs, dwarf mistletoe populations may not build up rapidly enough to result in serious losses.

Forestry Research West

Forestry Research West PDF Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 392

Book Description

General Technical Report RMRS

General Technical Report RMRS PDF Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 546

Book Description

Management of Western Dwarf Mistletoe in Ponderosa and Jeffrey Pines in Forest Recreation Areas

Management of Western Dwarf Mistletoe in Ponderosa and Jeffrey Pines in Forest Recreation Areas PDF Author: Robert F. Scharpf
Publisher:
ISBN:
Category : Dwarf mistletoes
Languages : en
Pages : 782

Book Description

Pests of the Native California Conifers

Pests of the Native California Conifers PDF Author: David L. Wood
Publisher: Univ of California Press
ISBN: 9780520233294
Category : Science
Languages : en
Pages : 266

Book Description
"This book provides an important compilation of information on major pathogens, insects, and other pests of conifers. Because conifers are of tremendous ecological and economic importance in California, this book will fill a unique niche."—Dave M. Rizzo, University of California, Davis "I applaud the authors for the effort involved in assembling this book. The combination of insect and disease information has important reference and diagnostic value."—Timothy D. Paine, co-editor of Mechanisms and Deployment of Resistance in Trees to Insects
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