Sökning: "Heterobasidion"

Visar resultat 11 - 15 av 30 uppsatser innehållade ordet Heterobasidion.

  1. 11. The impact of stumps’ height on secondary spread of Heterobasidion parviporum in precommercial thinning stands of Norway spruce (Picea abies)

    Master-uppsats, SLU/Southern Swedish Forest Research Centre

    Författare :Iwona Urban; [2015]
    Nyckelord :Norway spruce; Heterobasidion parviporum; precommercial thinning; wysokość pnia; świerk pospolity; czyszczenia późne;

    Sammanfattning : The economic losses caused by Heterobasidion spp. infection is an important issue in the Swedish forestry sector where Scots pine and Norway spruce make up to 80% of the standing volume. Both of the fungi species naturally existing in Sweden: H. annosum and H. LÄS MER

  3. 12. Rotröta i Sveriges granbestånd 1983 till 2013

    Kandidat-uppsats, SLU/Dept. of Forest Ecology and Management

    Författare :Anneli Olsson; [2015]
    Nyckelord :Picea abies; rotticka; Heterobasidion annosum; rotröta; Riksskogstaxeringen;

    Sammanfattning : Varje år orsakar rotrötan stora ekonomiska förluster för skogsbruket i Sverige dels genom att grantimmer nedklassas till massaved eller brännved, men även genom de tillväxtförluster som rotrötan orsakar. Att våra skogar drabbas av rotröta är inte något nytt, man kände till detta redan under tidigt 1800-tal. LÄS MER

  4. 13. Comparison of Phlebiopsis and urea and their effect when treating young spruces against Heterobasidion spp

    Master-uppsats, SLU/Southern Swedish Forest Research Centre

    Författare :Johan Hofmann; [2015]
    Nyckelord :Heterobasidion; Phlebiopsis; Urea; Young spruce; ung gran;

    Sammanfattning : Control of the economically important forest pathogen Heterobasidion spp. can be done by control with chemical and biological agents such as urea and Phlebiopsis. Today in Europe this action is mainly done during the mid stages of the rotation, thinning foremost and to a small extent in final felling. LÄS MER

  5. 14. Effects of temperature and heterobasidion species on the biological control efficacy of phlebiopsis gigantea

    Master-uppsats, SLU/Dept. of Forest Mycology and Plant Pathology

    Författare :Anan Zhao; [2013]
    Nyckelord :Heartwood; Heterobasiodion species; Norway spruce Picea abies ; Rotstop; Sapwood;

    Sammanfattning : Heterobasidion annosum sensu stricto is a damaging forest pathogen causing large economic losses to European forestry. The biological control agent Rotstop® made of Phlebiopsis gigantea oidia spores is effective on protecting freshly cut stump surfaces from H. annosum s.s. LÄS MER

  7. 15. Stump treatment with the root rot antagonist phlebiopsis gigantea : - sensitivity of P. gigantea spores to high pressure stress; - reduced water consumption for stump treatment

    Master-uppsats, SLU/Southern Swedish Forest Research Centre

    Författare :Martin Pettersson; [2013]
    Nyckelord :Stump treatment; Heterobasidion annosum; Heterobasidion parviporum; Phlebiopsis gigantea; Picea abies; Rotstop; pressure stress; water consumption;

    Sammanfattning : Stump treatment today requires large quantities of clean water mixed with the protective product Rotstop, to fully cover the stump surface. In order to reduce the water consumption without reducing the coverage of the stump surface, the pressure in the stump treatment device can be increased. Therefore, the Phlebiopsis gigantea (Fr.) Jül. LÄS MER