Sökning: "Curculionidae"

Hittade 4 uppsatser innehållade ordet Curculionidae.

  1. 1. Vilken metod är effektivast för fångster av fyrtandad rapsvivel i kål och raps?

    Kandidat-uppsats, SLU/Dept. of Ecology

    Författare :Anton Sandmark; [2023]
    Nyckelord :fyrtandad rapsvivel; Ceutorhyncus pallidactylus; raps; Brassica napus; kål; Brassica oleracea; IPM; fångstmetoder; gulskål; gul klisterfälla;

    Sammanfattning : Odling av frilandsgrönsaker står inför många utmaningar. För svenska kålodlare har det på senare år uppkommit problem med skadegöraren fyrtandad rapsvivel, Ceutorhynchus pallidactylus (Marsh.) (Coleoptera: Curculionidae). Larverna av C. LÄS MER

  3. 2. Emergence patterns of Ips typographus and Medetera spp. after overwintering in killed spruce trees

    Master-uppsats, SLU/Dept. of Ecology

    Författare :Oliver Morén James; [2023]
    Nyckelord :Ips typographus; Medetera; M. signaticornis; M. pinicola; M. ambigua; emergence patterns;

    Sammanfattning : Ips typographus (Coleoptera: Curculionidae, Scolytinae) is a pest species that mainly attacks Norway spruce (Picea abies L. Karst.) and can kill large volumes of spruce trees during outbreaks, leading to economic losses of great magnitude. A common practice to manage attacks is to remove recently killed trees and thereby remove the beetles. LÄS MER

  4. 3. Restoration of semi-natural grasslands, a success for phytophagous beetles (Curculionidae)

    Master-uppsats, SLU/Dept. of Ecology

    Författare :Magdalena Steiner; [2013]
    Nyckelord :weevils Circulionidae ; semi-natural grasslands; restoration success; phytophagous beetle composition; biodiversity; specialist; generalist; feeding preferences; Sweden;

    Sammanfattning : Semi-natural grasslands have rich plant and animal communities of high conservation value. The continuity and maintenance of these habitats depend on traditional agricultural methods, which nowadays give low economic output. LÄS MER

  5. 4. Vivlar på prydnadsbuskar - nya arter eller förändringar i födopreferenser?

    Kandidat-uppsats, SLU/Dept. of Plant Protection Biology

    Författare :Rana Anderson; [2009]
    Nyckelord :öronvivlar; vivlar; Curculionidae; Otiorhynchus; Dodecasticus; smreczynskii; inflatus; bladkantgnag ; prydnadsbuskar;

    Sammanfattning : During the last couple of years leaf-edge-cuts, typical to Otiorhynchus wingless-weevils, have been discovered on ornamental shrubs, especially Syringa vulgaris lilac and Ligustrum vulgare privet. These plant species have not earlier been attacked by wingless-weevils and because of that, the aim of this study is to see if new species of weevils have been established in Sweden or if the domestic weevils have changed their food preferences. LÄS MER