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You searched for: Publication Year 2014 Remove constraint Publication Year: 2014 Subject California Remove constraint Subject: California Subject Pseudotsuga menziesii Remove constraint Subject: Pseudotsuga menziesii
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1. Impact of the first recorded outbreak of the Douglas-fir tussock moth, Orgyia pseudotsugata, in southern California and the extent of its distribution in the Pacific Southwest region

Author:
Coleman, Tom W.; Jones, Michael I.; Courtial, Béatrice; Graves, Andrew D.; Woods, Meghan; Roques, Alain; Seybold, Steven J.
Source:
Forest ecology and management 2014 v.329 pp. 295
ISSN:
0378-1127
Subject:
Abies concolor; Orgyia pseudotsugata; Pinus jeffreyi; Pseudotsuga menziesii; Scolytus ventralis; basal area; computer software; dead wood; defoliation; fire suppression; forest management; forests; insects; larvae; mortality; national parks; population genetics; risk; stand density; tree mortality; British Columbia; California; Mexico; Washington
Abstract:
... The Douglas-fir tussock moth (DFTM), Orgyia pseudotsugata McDunnough (Lepidoptera:Erebidae:Lymantriinae), is a native western North American defoliator of true fir, Abies spp. Mill., and Douglas-fir, Pseudotsuga menziesii (Mirb.) Franco. We investigated the population genetics and impact associated with the first recorded outbreak of DFTM in southern California (USA), and report the first collecti ...
Datasets:
  U.S. Forest Service National Insect and Disease Risk Maps
Handle:
10113/60532
DOI:
10.1016/j.foreco.2014.06.027

2. Coastal and interior Douglas-fir provenances differ in growth performance and response to drought episodes at adult age

Author:
Sergent, Anne-Sophie; Bréda, Nathalie; Sanchez, Léopoldo; Bastein, Jean-Charles; Rozenberg, Philippe
Source:
Annals of forest science 2014 v.71 no.6 pp. 709-720
ISSN:
1286-4560
Subject:
drought; trees; dieback; adults; wood density; planting; screening; geographical distribution; heat; models; climate change; soil water; growth retardation; growth performance; provenance; wood; Pseudotsuga menziesii; California; France; Oregon; British Columbia; New Mexico
Abstract:
... CONTEXT : Since the 2003 drought and heat wave, Douglas-fir dieback has been reported in France in trees older than 30 years. Consequently, it is questioned whether selected Douglas-fir provenances are suited to the frequent and severe drought events which are forecast due to climate change. AIMS : Our objective was to contribute to the screening of variability in productivity and growth response ...
DOI:
10.1007/s13595-014-0393-1

3. Association of the pitch canker pathogen Fusarium circinatum with grass hosts in commercial pine production areas of South Africa

Author:
Swett, Cassandra L; Porter, Bernice; Fourie, Gerda; Steenkamp, Emma T; Gordon, Thomas R; Wingfield, Michael J
Source:
Southern forests 2014 v.76 no.3 pp. 161-166
ISSN:
2070-2639
Subject:
Briza maxima; DNA; Ehrharta; Fusarium circinatum; Pinus; Pseudotsuga menziesii; disease occurrence; endophytes; forests; fungi; grasses; host range; hosts; inoculum; nucleotide sequences; pathogens; plantations; sanitation; virulence; California; South Africa
Abstract:
... The pitch canker pathogen, Fusarium circinatum , has major impacts on production in pine nurseries and plantations in South Africa. Thus far, efforts to reduce local spread have focused on rouging of infected pines and sanitation to eliminate local sources of inoculum. Although the host range of F. circinatum was thought to be limited to pines and Douglas-fir, recent studies in California indicate ...
DOI:
10.2989/20702620.2014.916087