Results 41 to 50 of about 1,551 (207)

Do Offspring of Insects Feeding on Defoliation-Resistant Trees Have Better Biological Performance When Exposed to Nutritionally-Imbalanced Food?

open access: yesInsects, 2015
White spruce (Picea glauca (Moench) Voss) trees that are resistant or susceptible to spruce budworm (Choristoneura fumiferana (Clem.)) attack were identified in a southern Quebec plantation.
Roberto Quezada-Garcia   +3 more
doaj   +1 more source

Forest Carbon Resilience of Eastern Spruce Budworm (Choristoneura fumiferana) Salvage Harvesting in the Northeastern United States

open access: yesFrontiers in Forests and Global Change, 2020
The next major eastern spruce budworm (Choristoneura fumiferana) outbreak is likely to begin impacting the forests of the northeastern US over the next few years. More than 4.7 million ha of forest and 94.8 million Mg of carbon in spruce (Picea spp.) and
John S. Gunn   +5 more
doaj   +1 more source

Host-range testing of a mixture of two nucleopolyhedroviruses of Choristoneura fumiferana (Lepidoptera: Tortricidae)

open access: yes, 2011
The host range of a mixture of Choristoneura fumiferana (Clemens) nucleopolyhedroviruses (CfMNPV and CfDefNPV) was investigated using a per os bioassay of larvae of 29 species of Lepidoptera and adult males of Megachile rotundata (F.) (Hymenoptera ...
Tim R. Ladd   +5 more
core   +1 more source

Survival-time analysis of white spruce during spruce budworm defoliation

open access: yesSilva Fennica, 2005
Mortality and defoliation (DF%) in 987 white spruce (Picea glauca (Moench) Voss) trees were followed from 1992 to 2003 during an outbreak of the spruce budworm Choristoneura fumiferana (Clem.) in 15 white-spruce-dominated uneven-aged stands in the ...
Magnussen, Steen   +2 more
doaj   +1 more source

Ecology of outbreak populations of the western spruce budworm

open access: yesEcosphere, 2021
We sampled outbreak populations of western spruce budworm, Choristoneura occidentalis (Lepidoptera: Tortricidae), between 1997 and 2016 in Douglas‐fir forests in the interior of British Columbia, Canada.
Vincent Nealis, Jacques Régnière
doaj   +1 more source

Pathogenicity of a granulovirus towards Choristoneura fumiferana (Lepidoptera : Tortricidae)

open access: yes, 1999
The spruce budworm Choristoneura fumiferana (Clem.) is the most damaging insect of the balsam fir Abies balsema (L.) Mill. (Pinaceae) and the white spruce Picea glauca (Moench) Voss (Pinaceae) throughout eastern North America.
Cabana, Jean   +2 more
core   +1 more source

Identification, Localization, Transcription, and Sequence Analysis of the Choristoneura fumiferana Nuclear Polyhedrosis Virus DNA Polymerase Gene

open access: yes, 1995
The location of the Choristoneura fumiferana baculovirus DNA polymerase gene was determined by hybridization analysis using a probe prepared from the previously identified polymerase gene from the Autographa californica multiple nuclear polyhedrosis ...
Carstens, Eric B., Liu, J.Jian
core   +1 more source

Tracking insect outbreaks: a case study of community-assisted moth monitoring using sex pheromone traps

open access: yesFACETS, 2020
Insect outbreaks can cover vast geographic areas making it onerous to cost-effectively monitor populations to address management or ecological questions.
R. Drew Carleton   +16 more
doaj   +1 more source

Perceptions of Spruce Budworm Monitoring, Management, and Remote Sensing Technology in Maine's Forest Sector

open access: yesMaine Policy Review
Eastern spruce budworm (Choristoneura fumiferana Clem; SBW) is a native forest pest that can severely damage spruce-fir forests in Maine. Monitoring SBW defoliation and populations is important to ensure forest managers make timely decisions regarding ...
Allison E. Foster   +3 more
doaj   +1 more source

Does a Spruce Budworm Outbreak Affect the Growth Response of Black Spruce to a Subsequent Thinning?

open access: yesFrontiers in Plant Science, 2018
In Canada, new forestry practices involving the natural dynamics of tree growth and regeneration are proposed for integrating forest management with biodiversity.
Sergio Rossi   +3 more
doaj   +1 more source

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