Search for dissertations about: "Plant repellents"

Showing result 1 - 5 of 6 swedish dissertations containing the words Plant repellents.

  2. 1. Snake Gourds, Parasites and Mother Roasting : Medicinal plants, plant repellents, and Trichosanthes (Cucurbitaceae) in Lao PDR

    Author : Hugo J. de Boer; Lars Björk; Mats Thulin; Thomas Jaenson; Victoria Reyes-Garcia; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Trichosanthes; Ethnobotany; Similarity of Knowledge; Biogeography; Molecular Dating; Brou; Saek; Kry; Mother roasting; Postpartum healthcare; Parturition; Childbirth; Traditional Medicine; Plant repellents; Fermented fish; Biologi med inriktning mot systematik; Biology with specialization in Systematics;

    Abstract : Background. Traditional plant use was studied in Lao PDR. Research focused on medicinal plant use by the Brou, Saek and Kry ethnic groups, traditional plant repellents against parasitic arthropods and leeches, and the phylogeny and biogeography of the medicinally-important snake gourd genus (Trichosanthes, Cucurbitaceae).  Methods. READ MORE

  4. 2. Plant-Derived Chemicals as Tick Repellents

    Author : Samira Sadek Garboui; Thomas Jaenson; Katinka Pålsson; Raimondas Mozuraitis; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ixodes ricinus; plants; essential oils; tick repellent; Sweden; Biology; Biologi;

    Abstract : Ixodes ricinus is the main vector of Lyme borreliosis and Tick-borne encephalitis in Europe. Repellents provide a practical means of protection against tick bites and can therefore reduce transmission of tick-borne diseases. READ MORE

  5. 3. Botanical Repellents and Pesticides Traditionally Used Against Haematophagous Invertebrates in Lao PDR

    Author : Chanda Vongsombath; Thomas Jaenson; Raimondas Mozuraitis; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Ethnobotany; fly larvae; Lao PDR; medical entomology; mosquito repellents; myiasis; plant-based insecticides; terrestrial leeches; Haemadipsidae; Systematics and phylogenetics; Systematik och fylogeni; Organism biology; Organismbiologi; Biologi med inriktning mot systematik; Biology with specialization in Systematics;

    Abstract : Haematophagous parasites and disease vectors such as leeches, ticks, mites, lice, bed bugs, mosquitoes, and myiasis-causing fly larvae are common health problems in Lao Peoples Democratic Republic (Lao PDR). A main aim of my field work in Lao PDR in 2006-2010 was to document traditional knowledge among different ethnic groups about plants that people use to repel or to kill blood-feeding invertebrates. READ MORE

  6. 4. Ecology and control of Anopheles mosquitoes and human malaria in Guinea Bissau, West Africa

    Author : Katinka Pålsson; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ecology; Anopheles; Bed nets; Epidemiology; Malaria control; Natural mosquito repellents; Plasmodium; Ekologi; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi; Entomology; entomologi;

    Abstract : This thesis analyses the relationship between risk of exposure to infective Anophelesmosquitoes and different environmental factors, in particular house construction, presence ofdomestic animals and house location, in coastal Guinea Bissau, West Africa. The potentialeffect of permethrin-impregnated bed nets on mosquito abundance in bed rooms, and on thePlasmodium parasite prevalence in children was also analysed. READ MORE

  7. 5. Volatiles of Conifer Seedlings : Compositions and Resistance Markers

    Author : Astrid Kännaste; Anna-Karin Borg-Karlson; Anders Backlund; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Conifers; Norway spruce; Scots pine; Nalepella; Oligonychus ununguis; green leaf volatiles; terpenes; aromatics; benzenoids; SPME; induced defense reaction; Organic chemistry; Organisk kemi;

    Abstract : Pine weevils cause major damage to newly planted conifer seedlings in reforestation areas. However, recent findings indicate that small (“mini”) seedlings, planted at the age of 7-10 weeks, are gnawed less by pine weevils than the larger, conventionally planted seedlings. READ MORE