Sökning: "Brassica napus"

Visar resultat 21 - 25 av 32 uppsatser innehållade orden Brassica napus.

  1. 21. An assessment of the risk of neonicotinoid pesticides to harm non-target insects - is current risk assessments sufficient?

    Kandidat-uppsats, Lunds universitet/Miljövetenskaplig utbildning

    Författare :Elin Ingersdotter; [2016]
    Nyckelord :neonicotinoids; clothianidin; solitary bee; solitary wasp; risk assessment; pesticides; Earth and Environmental Sciences;

    Sammanfattning : Neonicotinoids, e.g. clothiandin, imidacloprid and thiamethoxam, is the most used class of insecticides worldwide. However, lately, this group of insecticides has been subject to controversy. LÄS MER

  3. 22. Biology of the diamondback moth (Plutella xylostella) and its future impact in Swedish oilseed rape production : a literature review

    Kandidat-uppsats, SLU/Dept. of Ecology

    Författare :Joakim Hermansson; [2016]
    Nyckelord :diamondback moth; Plutella xylostella; overwintering; climate; canola; oilseed rape; cosmopolitan pest; resistance; Brassica napus;

    Sammanfattning : The biology of the Diamondback moth, Plutella xylostella, and its impact on oilseed rape production is reviewed. The Diamondback moth, DBM, is a serious, migratory, pest and a problem worldwide because its larval stage has a ravenous appetite, which causes major economic losses in Brassica crops. LÄS MER

  4. 23. Hur olika fånggrödor påverkar klumprotsjuka

    Kandidat-uppsats, SLU/Dept. of Crop Production Ecology

    Författare :Johan Knutsson; [2015]
    Nyckelord :Brassica; Brassicaceae; catch crop; korsblommig; oljeväxter; Plasmo-diophora brassicae;

    Sammanfattning : I rapsodling (Brassica napus) är klumprotsjuka orsakad av svampen Plas-modiophora brassicae den värsta sjukdomen ekonomiskt sett. För att und-vika att få in denna sjukdom i våra jordar är det lättaste att undvika att odla raps eller andra arter inom den korsblommiga växtfamiljen. LÄS MER

  5. 24. Neonicotinoids and honeybee health : the effect of the neonicotinoid clothianidin, applied as a seed dressing in Brassica napus, on pathogen and parasite prevalence and quantities in free-foraging adult honeybees (Apis mellifera)

    Master-uppsats, SLU/Dept. of Ecology

    Författare :Julia Goss; [2014]
    Nyckelord :honeybees; pathogens; parasites; virus; Nosema; Varroa; neonicotinoids; clothianidin;

    Sammanfattning : Sub-lethal doses of neonicotinoids have been shown to negatively impact the health of honeybees. However, most studies to date have exposed bees only artificially to these pesticides under laboratory conditions. LÄS MER

  7. 25. Seed bio-priming with Serratia plymuthica HRO-C48 for the control of Verticillium longisporum and Phoma lingam in Brassica napus L. spp. oleifera

    Master-uppsats, SLU/Dept. of Forest Mycology and Plant Pathology

    Författare :Muhammad Fahd Shaukt; [2013]
    Nyckelord :Oilseed rape; Verticillium longisporum; Seed bio-priming; population dynamics; biological control;

    Sammanfattning : Oilseed rape is one of the most important crops all over the world. It is susceptible to many fungal pathogens including soil-borne Verticillium longisporum (causes Verticillium wilt) and Phoma lingam (causes blackleg). Available control measures are not sufficient to control these diseases. LÄS MER