Essays about: "Curculionidae"

Found 4 essays containing the word Curculionidae.

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

    University essay from SLU/Dept. of Ecology

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

    Abstract : 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. READ MORE

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

    University essay from SLU/Dept. of Ecology

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

    Abstract : 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. READ MORE

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

    University essay from SLU/Dept. of Ecology

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

    Abstract : 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. READ MORE

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

    University essay from SLU/Dept. of Plant Protection Biology

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

    Abstract : 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. READ MORE