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Effects of wood-ash application on potential carbon and nitrogen mineralisation at two forest sites with different tree species, climate and N status
Abstract In the future it may become common practice to return wood-ash to forest ecosystems in order to replenish nutrients removed when brash has been extracted as a source of bioenergy. Wood-ashExpand
Identification of the Sex Pheromone of the Spruce Seed Moth, Cydia strobilella L.
The spruce seed moth, Cydia strobilella L., is a serious pest on cones of spruce (Picea spp.) in the Holarctic region. Previous studies from different parts of its area of distribution have reportedExpand
Assessment of genetic and pheromonal diversity of the Cydia strobilella species complex (Lepidoptera: Tortricidae)
Combining pheromone trapping and genetic analyses can be useful when trying to resolve complexes of closely related insect taxa that are difficult to distinguish based on morphological characters.Expand
Assessment of cone-damaging insects in a Swedish spruce seed orchard and the efficacy of large-scale application of Bacillus thuringiensis variety aizawai x kurstaki against lepidopterans.
In a 2-yr study, we investigated the efficacy of large-scale application of the biological insecticide Bacillus thuringiensis variety aizawai x kurstaki (Btk) in a Swedish spruce, Picea abies L.Expand
Effects of repeated slash removal in thinned stands on soil chemistry and understorey vegetation
The increased interest in harvesting logging residues as a source of bio-energy has led to concerns about the potentially adverse long-term impact of the practice on site productivity. The aim ofExpand
Assessment of Cone-Damaging Insects in a Swedish Spruce Seed Orchard and the Efficacy of Large-Scale Application of Bacillus thuringiensis variety aizawai × kurstaki Against Lepidopterans
In a 2-yr study, we investigated the efÞcacy of large-scale application of the biological insecticide Bacillus thuringiensis variety aizawai kurstaki (Btk) in a Swedish spruce, Picea abies L.Expand
Systemic Insecticide and Gibberellin Reduced Cone Damage and Increased Flowering in a Spruce Seed Orchard
ABSTRACT Insects feeding in conifer cones are difficult to control with nonsystemic insecticides. Newly developed systemic insecticides that can be injected into tree trunks may be a possible way ofExpand
(3Z,6Z,9Z,12Z,15Z)‐pentacosapentaene and (9Z,11E)‐tetradecadienyl acetate: sex pheromone of the spruce coneworm Dioryctria abietella (Lepidoptera: Pyralidae)
The spruce coneworm, Dioryctria abietella Denis & Schiffermüller (Lepidoptera: Pyralidae), is a major pest in spruce seed orchards in Europe. Initial work on its pheromone ecology reportedExpand
Sex pheromone of the cloaked pug moth, Eupithecia abietaria (Lepidoptera: Geometridae), a pest of spruce cones
The sex pheromone of the cloaked pug moth, Eupithecia abietaria Götze, an important cone‐feeding pest in spruce seed orchards in Europe, was investigated. Chemical and electrophysiological analysesExpand
Challenges of pheromone-based mating disruption of Cydia strobilella and Dioryctria abietella in spruce seed orchards
Seed orchards function as the primary source of high-quality seeds for reforestation in many European countries, but their seed yields can be severely reduced due to seed- and cone-feeding insects.Expand
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