Sökning: "Skadeinsekt."

Visar resultat 1 - 5 av 10 uppsatser innehållade ordet Skadeinsekt..

  1. 1. Scent traps and trap crops for broad bean weevil (Bruchus rufimanus) control

    Master-uppsats, SLU/Dept. of Ecology

    Författare :Ylva Johansson; [2022]
    Nyckelord :faba bean; Vicia faba minor; semiochemicals; kairomones;

    Sammanfattning : Bönsmyg (Bruchus rufimanus) är en skadeinsekt vars larv orsakar skada i åkerböna (Vicia faba minor L), vilket reducerar bönornas kvalitet och kommersiella värde. Detta projekts syfte var att testa och utvärdera doftfällor i kombination med fångstgrödor som en biologisk kontroll mot bönsmyg. LÄS MER

  3. 2. Bland granar och grannar : Ansvar och risk för granbarkborreangrepp i skog

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Juridiska institutionen

    Författare :Lovisa Helmius; [2022]
    Nyckelord :spruce bark beetle; Ips typographus; environmental damage; forest pests; pest control; pests of plants; environmental law; law on damages; neighbour law; biological diversity; granbarkborre; Ips typographus; miljöskadestånd; insektshärjning; skadeinsekt; växtskadegörare; miljörätt; skadeståndsrätt; grannelagsrätt; skogsskada; skogsskydd; växtskydd; biologisk mångfald;

    Sammanfattning : This thesis discusses the responsibility of and risk for infestations of spruce bark beetle. The spruce bark beetle, Ips typographus, is a natural part of the Swedish forest ecosystem but causes severe financial damage in forestry. Since 2018, the spruce bark beetle infestations have been substantial in Sweden. LÄS MER

  4. 3. Effects of plant-fungal interactions on volatile emission of Hordeum vulgare and aphid preference

    Master-uppsats, SLU/Dept. of Ecology

    Författare :Bina Johansson; [2022]
    Nyckelord :volatile organic compounds; chemical communication; Trichoderma atroviride; Fusarium graminearum; Rhopalosiphum padi; biological control;

    Sammanfattning : Barley is one of the most economically important cultivated crops in the world. However, barley is a host for many insect pests and plant pathogenic fungi which is a threat to the production. Rhopalosiphum padi is an economically important insect pest that leads to large economical losses in agricultural crops such as barley. LÄS MER

  5. 4. Implementation of Scheimpflug Lidar for Entomological Monitoring of Bark Beetles

    Magister-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

    Författare :Jonathan Peterson; [2020]
    Nyckelord :Scheimpflug Lidar; Lidar; Bark beetles; Forestry; Entomological monitoring; Physics and Astronomy;

    Sammanfattning : Bark beetles are responsible for great damages to Swedish forestry every year. This project focuses on a method of entomological lidar called Scheimpflug lidar to detect and monitor bark beetles. Scheimpflug lidar uses old techniques from photography to achieve a deep field of focus to resolve objects over long distances. LÄS MER

  7. 5. Planning for Viable Forests with High Biodiversity

    Kandidat-uppsats, Lunds universitet/Miljövetenskaplig utbildning

    Författare :Anja Herdesang; [2018]
    Nyckelord :Anja Herdesang; Planning for Viable Forests with High Biodiversity; forestry; foresters; forester; biodiversity; ecosystem; forest; sustainability; extinction; speices; refinement; nature; clear-cut; cuts; monocultured; forests; alternative; concervation; enviromental laws; even-aged; continuous; silvicultural; wood products; cost-effectiveness; Protection; timber; pulp; production; forest owners; harvesting; red-listed; violations; protected; effective management; ecosystem responses; disturbance; Cross-disciplinary cooperation; climax and carrying capacity; index; describing the abiotic basic Prerequisites for Biodiversity APB ; guideline; trees connected; wildlife connectivity; continuity; Earth and Environmental Sciences; Agriculture and Food Sciences; Biology and Life Sciences; Cultural Sciences; Law and Political Science;

    Sammanfattning : In recent decades, the rate of extinction of species is increasing due to human use and refinement of nature. This has resulted in a large amount of research throughout the world. Forestry today is mostly based on clear cuts, and many natural forests have been cut down and replaced with monocultured forests. LÄS MER