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Publications

NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.

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1993

Academic – Fungicide treatment of cereals according to need in the Nordic countries

Guro Brodal

Crop Protection in Northern Britain 1993: Proceedings of a Conference Held at Dundee University, 23-25 March 1993. 1993. p. 7-16.

Authors

Guro Brodal

Abstract

No abstract has been registered

Academic – Ecological aspects of fungi associated with the spruce bark beetle Ips typographus in Norway

Halvor Solheim

Ceratocystis and Ophiostoma. Taxonomy, ecology, and pathogenicity. APS Press, 1993. 235-242

Authors

Halvor Solheim

Abstract

No abstract has been registered

Academic – Effects of pruning young Scots pines on host vigour and susceptibility of Leptographium wingfieldii and Ophiostoma minus, two blue-stain fungi associated with Tomicus piniperda

Bo Långström, Halvor Solheim, Claes Hellqvist, ...

European Journal of Forest Pathology, 23 1993. 400-415

Authors

Bo Långström Halvor Solheim Claes Hellqvist Rolf Gref

Abstract

In a field experiment in central Sweden, the vigour of 25-yr-old Scots pines was manipulated by pruning, prior to inoculation with Leptographium wingfieldii and Ophiostoma minus, two blue-stain fungi associated with Tomicus piniperda. Our main purpose was to correlate fungus invasion and host defence reactions with host vigour. Both fungi invaded the inner bark and the sapwood at the points of inoculation. L. wingfieldii caused larger lesions in the bark, but O. minus tended to grow faster in the sapwood. The flow of primary resin was related to tree vigour, whereas carbohydrates present in needles and stem phloem were not. Lesion formation and the content or composition of resin acids in lesions did not differ between fungi or pruning treatments.

Academic – Fungi associated with the spruce bark beetle Ips typographus in an endemic area in Norway

Halvor Solheim

Scandinavian Journal of Forest Research, 8 1993. 118-122

Authors

Halvor Solheim

Abstract

No abstract has been registered

Report – Pathogenicity of five species of Ophiostoma fungi to Douglas fir

Erik Christiansen, Halvor Solheim

Meddelelser fra Skogforsk, (47.1) 1993. 12 p.

To document

Authors

Erik Christiansen Halvor Solheim

Abstract

No abstract has been registered

Academic – Pathogenicity of the blue-stain fungi Leptographium wingfieldii and Ophiostoma minus to Scots pine: effect of tree pruning and inoculum density

Halvor Solheim, Bo Långström, Claes Hellqvist

Canadian Journal of Forest Research, 23 1993. 1438-1443

Authors

Halvor Solheim Bo Långström Claes Hellqvist

Abstract

The pathogenicity of the blue-stain fungi Leptographium wingfieldii Morelet and Ophiostoma minus (Hedgc.) H. et P. Syd. associated with the pine shoot beetle Tomicus piniperda (L.), was determined on pruned and unpruned Seots pine (Pinus sylvestris L.) trees. Both fungi killed unpruned trees when inoculated in a 60 cm wide band at a density of 800 inoculations/m2, while severely pruned trees were killed by an inoculation density of 400 inoculations/m2. Trees inoculated with L. wingfieldii died sooner after inoculation than trees inoculated with O. minus.

1992

Academic – Leucophenga quinquemaculata Strobl (Diptera:Drosophilidae) from Norway

Gerhard Bächli, Karl Thunes

Fauna Norvegica, Serie B, 39 1992. p. 81-84

Authors

Gerhard Bächli Karl Thunes

Abstract

No abstract has been registered

Lecture – Air pollution impact on forest and vegetation of eastern Finnmark, Norway

Dan Aamlid

In: Kismul, V., J. Jerre & E. Løbersli (eds.): Effects of air pollutants on terrestrial ecosystems in the border area between Russia and Norway, pp. 56-65. Proceedings from the first symposium, Svanvik, Norway 18.-20. March 1992. Norwegian State Pollution Control Authority, Oslo, 1992.

Authors

Dan Aamlid

Abstract

No abstract has been registered

Academic – Forest decline in Europa

Dan Aamlid, Kåre Olav Venn, A.O. Stevens

In: Johnson, D.W. & S.E. Lindberg (eds.): Atmospheric deposition and forest nutrient cycling. Springer-Verlag, New York. Ecological Studies, 91 1992. 543-560

Authors

Dan Aamlid Kåre Olav Venn A.O. Stevens

Abstract

No abstract has been registered

Lecture – Lichens on birch stems in South-Varanger, Norway in relation to air pollution

Dan Aamlid

In: Kismul, V., J. Jerre & E. Løbersli (eds.): Effects of air pollutants on terrestrial ecosystems in the border area between Russia and Norway, pp. 198-201. Proceedings from the first symposium, Svanvik, Norway 18.-20. March 1992. Norwegian State Pollution Control Authority, Oslo, 1992. 198-201

Authors

Dan Aamlid

Abstract

No abstract has been registered

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