Results 101 to 110 of about 67,673 (156)

Environmental factors affecting spruce budworm growth

The spruce budworm is an important enemy of the Douglas fir-true fir forests in Oregon. It can be successfully controlled by aerial spraying with DDT.
Wagg, John William Bruce, Oregon Forest Lands Research Center   +1 more
core   +3 more sources

Early growth decline and vegetation change predict black spruce mortality following spruce budworm outbreaks

Ecological Indicators
Tree mortality is accelerating across boreal forests due to increasing biotic disturbances, but the mechanisms linking defoliation, individual tree stress, and canopy decline remain poorly understood.
Bijay Pandeya, Martin P. Girardin, Kaysandra Waldron, Dominique Boucher, Daniel Kneeshaw, Annie Deslauriers   +5 more
doaj   +1 more source

Pre-ingestive effects of tannins on the spruce budworm, Choristoneura fumiferana (Clemens) (Lepidoptera: Tortricidae) [PDF]

, 2007
The spruce budworm, Choristoneura fumiferana (Clemens) (Lepidoptera: Tortricidae), is considered the most important pest threatening the coniferous forests of eastern North America.
Cardinal-Aucoin, Michael
core  

Coming Spruce Budworm Outbreak: Initial Risk Assessment and Preparation & Response Recommendations for Maine\u27s Forestry Community [PDF]

, 2016
The Maine Spruce Budworm Task Force was formed in summer 2013 by the University of Maine’s Cooperative Forestry Research Unit (CFRU), Maine Forest Service (MFS), and Maine Forest Products Council (MFPC) to begin preparing for the next outbreak of the ...
Maine Forest Service, Cooperative Forestry Research Unit, University of Maine, Maine Forest Products Council   +2 more
core  

MOOSE AND DEER POPULATION TRENDS IN NORTHWESTERN ONTARIO: A CASE HISTORY

Alces, 2017
Many interrelated factors contribute to the rise and fall of white-tailed deer (Odocoileus virginianus) and moose (Alces alces) populations in the mixed boreal forests of eastern North America where these species often cohabit.
Bruce Ranta, Murray Lankester
doaj  

Genomic selection for resistance to spruce budworm in white spruce and relationships with growth and wood quality traits. [PDF]

Evol Appl, 2020
Beaulieu J, Nadeau S, Ding C, Celedon JM, Azaiez A, Ritland C, Laverdière JP, Deslauriers M, Adams G, Fullarton M, Bohlmann J, Lenz P, Bousquet J.   +12 more
europepmc   +1 more source

Review of “Biennial aerial application of Bacillus thuringiensis var. kurstaki provides good protection against spruce budworm (Choristoneura fumiferana [Clemens])“

Review of “Biennial aerial application of Bacillus thuringiensis var. kurstaki provides good protection against spruce budworm (Choristoneura fumiferana [Clemens])
Bauce, Eric, Hébert, Christian, Dreyer, Erwin, Coyle, David, Dupont, Alain, Berthiaume, Richard, Quezada-García, Roberto, Fuentealba, Alvaro, Battisti, Andrea, Sallé, Aurélien   +9 more
core   +1 more source

Major changes in gene expression between strains of diapausing and non-diapause spruce budworm. [PDF]

PLoS One
van der Burg KRL, Gauthier J, Roe AD, Cusson M, Boyle B, Levesque RC, Marshall KE.   +6 more
europepmc   +1 more source

Temperature and Morphology Affect the Performance and Cost of Flight in Spruce Budworm Females. [PDF]

Ecol Evol
Royer L, Régnière J.
europepmc   +1 more source

S-shaped and broken S-shaped bifurcation diagrams with hysteresis for a multiparameter spruce budworm population problem in one space dimension

, 2013
MSC: 34B18 74G35 Keywords: S-shaped bifurcation diagram Broken S-shaped bifurcation diagram Weak hysteresis Strong hysteresis Spruce budworm problem Time map We study exact multiplicity and bifurcation diagrams of positive solutions for a multiparameter ...
T.-S Yeh, Shin-Hwa Wang, / J Differential, S.-H Wang, Tzung-Shin Yeh   +4 more
core