Essays about: "Helena Nord"

Found 2 essays containing the words Helena Nord.

  1. 1. Biology of Lilioceris lilii(Coleoptera:Chrysomelidae) and the occurrence of their parasitoids in Sweden

    University essay from SLU/Dept. of Plant Protection Biology

    Author : Helena Kroon; [2009]
    Keywords : Lilioceris lilii; conservation biological control; Lemophagus errabundus; Lemophagus pulcher; Tetrastichus setifer; Diaparsis jucunda; Mesochorus lilioceriphilus; Lilioceris merdigera; Sweden; survey;

    Abstract : Sammanfattning: Liljebaggen, Lilioceris lilii (Scopoli) är den största skadegöraren på liljor tillhörande släktena Lilium och Fritillaria, och är ett problem i Sverige liksom i övriga Europa, Nord-Amerika och Asien. Skadan orsakas främst av larverna, men även av fullvuxna baggar, som äter på plantans blad, knoppar och blommor (Ernst, 2005). READ MORE

  3. 2. Water infiltration under different land use in miombo woodlands outside Morogoro, Tanzania

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : Helena Nord; [2008]
    Keywords : miombo; land use; management; infiltration capacity; steady state infiltrability; bulk density; soil organic carbon; agriculture; Albizia; double-ring infiltrometer; wet combustion;

    Abstract : Infiltration capacity is a measure of how much water that can enter the soil and hence become available to plant roots and micro organisms. A high infiltration capacity also means that less water is available for runoff and subsequent erosion. READ MORE