Sökning: "Biological pest control"

Visar resultat 1 - 5 av 20 avhandlingar innehållade orden Biological pest control.

  1. 1. Studies in pest control for cultural property

    Detta är en avhandling från Göteborg : University of Gothenburg

    Författare :Thomas Strang; Göteborgs universitet.; Gothenburg University.; [2013]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; HUMANIORA; HUMANITIES; Pest control; cultural property collections; insect; mould; environment; integrated pest management; IPM; thermal control; pest risk to museum collections;

    Sammanfattning : This thesis considers discrete problems of protecting cultural property from pests and examines some of the solutions. Recent decades have seen a large change in how fumigants and pesticides are used in collections of cultural property. LÄS MER

  2. 2. Studies towards late blight control in potato

    Detta är en avhandling från Department of Biology, Lund University

    Författare :Laith Moushib; Lunds universitet.; Lund University.; Lunds universitet.; Lund University.; [2013]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Oomycetes; plant induced resistance; sustainable agriculture; plant defence activators; plant innate immunity; potato; late blight;

    Sammanfattning : Popular Abstract in English Plant diseases are directly associated with food security because they result in severe reduction of plant yield and thus they add to the scarcity of foods in the world, which can lead to negative repercussions on humankind. Late blight disease that severely hit Ireland in 1840s, which was caused by Phytophthora infestans and is mentioned in the historical records as the Irish Famine, can be a testimony of the involvement of plant pathogens in human tragedies and shaping the history of humankind. LÄS MER

  3. 3. Ecology and management of crop pollination and pest control

    Detta är en avhandling från Department of Biology, Lund University

    Författare :Ola Lundin; Sveriges lantbruksuniversitet.; [2013]

    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

  4. 4. Small remnant habitats Important structures in fragmented landscapes

    Detta är en avhandling från Stockholm : Department of Physical Geography, Stockholm University

    Författare :Jessica Lindgren; Stockholms universitet.; [2017]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Alpha-diversity; Beta-diversity; Biological pest control; Canopy cover; Connectivity; Ecosystem function; Fleshy fruits; Forest edge; Forest management; Forest specialist species; Fragmentation; Functional diversity; Gamma-diversity; Grassland specialist species; Green infrastructure; Habitat amount hypothesis; Island biogeography; Midfield islets; Plant diversity; Plant-pollinator interaction; Pollination; Remnant habitat; Seed predation; Small habitats; Species richness; Structural heterogeneity; Physical Geography; naturgeografi;

    Sammanfattning : The world-wide intensification of agriculture has led to a decline in species richness due to land use change, isolation, and fragmentation of natural and semi-natural habitats in agricultural and forestry landscapes. As a consequence, there is a current landscape management focus on the importance of green infrastructure to mitigate biodiversity decline and preserve ecosystem functions e. LÄS MER

  5. 5. Disruption of moth mating behaviour by olfactory and auditory cues

    Detta är en avhandling från Chemical Ecology and Ecotoxicology, Department of Biology, Lund University

    Författare :Glenn Svensson; Lunds universitet.; Lund University.; [2002]
    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 : Popular Abstract in Swedish Kärleksdofter och varningsljud i bekämpning av nattfjärilar Jag har studerat hur populationer av skadegörande nattfjärilar kan bekämpas med miljövänliga metoder där djurens egna sinnessystem manipuleras. Liksom många andra insekter kommunicerar nattfjärilar med artspecifika doftsignaler (feromoner) vid parning. LÄS MER