Sökning: "Insecticide"

Visar resultat 21 - 25 av 27 avhandlingar innehållade ordet Insecticide.

  1. 21. 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

  3. 22. EXPOSURE TO PERSISTENT ORGANOCHLORINE POLLUTANTS AND MALE SEMEN FUNCTION

    Författare :Anna Rignell-Hydbom; Avdelningen för arbets- och miljömedicin; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Miljömedicin; Environmental health; epididymal and accessory sex gland function; Y:X sperm chromosome ratio; sperm chromation integrity; sperm concentration; sperm motility; persistent organochlorine poluutants;

    Sammanfattning : Persistent organochlorine pollutants (POPs), such as polychlorinated biphenyls (PCB) and the insecticide dichloro-diphenyl-dichloro-ethylene (DDT) have been released into the environment mainly since the second World War. POPs accumulate especially in highly ranked predators of the aquatic food chain. LÄS MER

  4. 23. Pesticide impact of intensive banana production on aquatic ecosystems in Costa Rica

    Författare :Luisa Eugenia Castillo; Donald J Baird; Stockholms universitet; []
    Nyckelord :Marine Ecotoxicology; marin ekotoxikologi;

    Sammanfattning : A combination of chemical and biological studies demonstrated extensive surface water contamination, the occurrence of pesticides in sediments, especially near the banana plantation areas, and biological impacts. Pesticides were even found in the downstream waters of the Tortuguero conservation area, a highly diverse wetland that protects several endangered species. LÄS MER

  5. 24. Aiming at malaria elimination in Zanzibar

    Författare :Delér Shakely; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Following the increase of the international funding for implementation of the combined malaria control strategies in the past decade, a significant reduction of malaria attributed morbidity and mortality has been achieved. Yet, malaria is still a severe threat to global health. LÄS MER

  7. 25. 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