Sökning: "Pest"

Visar resultat 6 - 10 av 91 avhandlingar innehållade ordet Pest.

  1. 6. Disruption of moth mating behaviour by olfactory and auditory cues

    Författare :Glenn Svensson; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Djurekologi; ultrasound; predation risk; selection; heritability; flight tunnel; harmonic radar; pest control; mating disruption; pheromone communication; Pyralidae; Lepidoptera; Noctuidae; Animal ecology;

    Sammanfattning : The impact of olfactory and auditory cues on the mating behaviour in two species of moths, Agrotis segetum (Noctuidae) and Plodia interpunctella (Pyralidae), was investigated to evaluate their potential use in integrated pest management. The flight behaviour of male A. LÄS MER

  3. 7. On the Regulation of Ornithine Decarboxylase

    Författare :Eva Lövkvist Wallström; Institutionen för experimentell medicinsk vetenskap; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fysiologi; Physiology; Crithidia fasciculata.; polyamines; Ornithine decarboxylase; translational control; osmolarity; untranslated region; COS cells; CHO cells; transfection; protein turnover; PEST region;

    Sammanfattning : The polyamines putrescine, spermidine and spermine have been shown to be involved in cell growth and differentiation, and are considered to be crucial components of the living cell. The synthesis of polyamines in the cell is strictly regulated. LÄS MER

  4. 8. Ecology and management of crop pollination and pest control : insights from red clover seed production

    Författare :Ola Lundin; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The agricultural landscape has gone through large changes to meet increasing demands for food. This has led to major biodiversity declines, while effects on ecosystem services that support agricultural productivity, such as pollination and pest control, remain less studied. LÄS MER

  5. 9. Sex pheromone biosynthesis in moth pests : From gene discovery to biotechnological production

    Författare :Marie Dam; Feromongruppen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Lepidoptera; Moths; Sex pheromones; Biosynthesis; Desaturases; Gene characterisation; Transcriptomics; Heterologous expression; Biotechnology; integrated pest management;

    Sammanfattning : Moths (Lepidoptera) are some of the most economically important pests in human agriculture. Conventional insecticides used for management promote insecticide resistance in addition to cause human- and environmental harm. This emphasises an inescapable need for sustainable alternatives and integrated practices. LÄS MER

  7. 10. Enhancing spruce defence against an insect pest : effects of somatic embryogenesis and methyl jasmonate treatment

    Författare :Kristina Berggren Nieto; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Enhancing plant resistance against pests has the potential to become a sustainable alternative within forestry. Exogenous application of the plant defence signalling hormone methyl jasmonate (MeJA) as well as propagation through somatic embryogenesis (SE) has been shown to increase Norway spruce (Picea abies) plant’s resistance to the major forest regeneration pest the pine weevil Hylobius abietis. LÄS MER