Association genetics of acetophenone defence against spruce budworm in mature white spruce [PDF]
BMC Plant Biology, 2018 Background Outbreaks of spruce budworm (SBW, Choristoneura fumiferana Clem.) cause major recurrent damage in boreal conifers such as white spruce ( Picea glauca [Moench] Voss) and large losses of forest biomass in North America.
Mebarek Lamara +5 more
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Expression and Localization of a Testis-Specific Heat Shock Protein (CfHSP70-2) During Spermatogenesis in the Spruce Budworm, Choristoneura fumiferana (Clem.). [PDF]
Arch Insect Biochem PhysiolThis study discovered CfHSP70‐2, a heat shock protein expressed in the testis of a forest lepidopteran pest spruce budworm, Choristoneura fumiferana, during late pupal and adult stages primarily found in round spermatids during spermatogenesis. Heat shock, starvation, and chemical heat shock protein activators were unable to alter expression.
Quan G, Soares H.
europepmc +2 more sources
Pairing Spruce Budworm Control and Minimal Understory Perturbations: Effects of Btk Spraying Frequency in Boreal Forests. [PDF]
Ecol EvolSpruce budworm epidemic induces tree mortality and modifies understory communities. Could aerial spraying of Btk reduce perturbations in understory communities? Biannual Btk spraying could prevent both wood loss and understory degradation. ABSTRACT Since 1985, more than 10 million hectares of Canadian forests have been treated against spruce budworm ...
Robitaille M, Pothier D, Pellerin S.
europepmc +2 more sources
Spatial and temporal patterns of bark beetle and defoliator outbreaks, and their interactions, in the Pacific Northwest. [PDF]
Ecol ApplAbstract The dynamics of many forest insects are changing in response to climate warming; however, patterns are not always consistent among or within taxa. Changes in outbreak dynamics for individual species have received much recent attention, but the potential for interactions among species has received less.
Pane AM +3 more
europepmc +2 more sources
ANALYSIS OF THE SPRUCE BUDWORM MODEL USING THE HEUN METHOD AND THIRD-ORDER RUNGE-KUTTA
Barekeng, 2022 This study discusses the analysis of the Spruce Budworm model using numerical methods, namely the Heun method and the Third Order Runge-Kutta method. The purpose of this study is to determine the numerical results of the Heun method and the Third Order ...
Irwan Irwan +4 more
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The spruce budworm, a potential threat for Norway spruce in eastern Canada?
The Forestry Chronicle, 2020 Norway spruce, an exotic tree species in North America, was largely used in reforestation programs in the province of Québec between 1972 and 1990. Several of these plantations are now reaching their commercial maturity and the resurgence of spruce ...
Richard Berthiaume +4 more
doaj +1 more source
Dynamic Analysis of a Model for Spruce Budworm Populations with Delay
Journal of Function Spaces, 2021 A class of delayed spruce budworm population model is considered. Compared with previous studies, both autonomous and nonautonomous delayed spruce budworm population models are considered. By using the inequality techniques, continuation theorem, and the
Ahmadjan Muhammadhaji, Azhar Halik
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FACETS, 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
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Salvage decision-making based on carbon following an eastern spruce budworm outbreak
Frontiers in Forests and Global Change, 2023 Forest disturbances, such as an eastern spruce budworm (Choristoneura fumiferana) outbreak, impact the strength and persistence of forest carbon sinks. Salvage harvests are a typical management response to widespread tree mortality, but the decision to ...
Lisa N. Scott +8 more
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Spruce budworm growth impact study
, 2021 These are the Spruce Budworm Growth Impact Study data collected between 1975 and 1985 at 424 0.05 acre permanent sample plots across the 50,000 km2 spruce-fir forests of Maine, USA.
Aaron Weiskittel +2 more
core +1 more source