Sökning: "powdery mildew"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden powdery mildew.

  1. 1. Using Machine Learning to Detect Grapevine Disease in Wine Production

    Master-uppsats, Lunds universitet/Matematik LTH

    Författare :Ivar Vänglund; [2021]
    Nyckelord :Grapevine disease; Downy mildew; Powdery mildew; Image analysis; Deep learning; Convolutional neural network; Data augmentation; Mathematics and Statistics;

    Sammanfattning : When growing grapevines there are common risks for disease outbreaks when the pathogen has remained from earlier growing cycles and the weather and soil conditions work in the diseases' favour. The diseases may spread a lot before being highly noticeable. This means that the harvests of grapes for wine production are in jeopardy. LÄS MER

  3. 2. Mjöldagg : mjöldaggsbekämpning i stråsäd och behov av en ny aktiv substans på den svenska marknaden

    M1-uppsats, SLU/Dept. of Biosystems and Technology (from 130101)

    Författare :Henrik Rivander; [2017]
    Nyckelord :gräsmjöldagg; mjöldagg; fungicider; resistens; vete; korn; havre; råg; rågvete; proquinazid;

    Sammanfattning : Mjöldagg är en av de mest omfattande svampsjukdomarna inom växtodling som orsakar skador och skördereduktion på spannmål vilket leder till stora ekonomiska förluster. Bekämpning av mjöldagg kräver nästan alltid kemiska preparat, som ständigt ska hänga med i utvecklingen och tillgodose marknaden. LÄS MER

  4. 3. Biological control of powdery mildew in greenhouse produced cucumber : an evaluation of two microbiological control agents

    Master-uppsats, SLU/Dept. of Plant Breeding (from 130101)

    Författare :Anna-Carin Almqvist; [2013]
    Nyckelord :powdery mildew; cucumber; Golovinomyces cichoracearum; Podosphaera xanthii; biological control; Ampelomyces quisqualis; Pythium oligandrum;

    Sammanfattning : Powdery mildew is a serious problem in both field and greenhouse cucumber production and can cause serious infection and radically reduced yields. Today, powdery mildew is the main disease in greenhouse produced cucumber. Disease control should preferably be both efficient and environmentally friendly, which is not easy to achieve at all times. LÄS MER

  5. 4. Utvärdering av bekämpningströsklar för bladsvampar i sockerbetor

    Uppsats för yrkesexamina på grundnivå, SLU/Dept. of Forest Mycology and Plant Pathology

    Författare :Rebecka Svensson; [2011]
    Nyckelord :sockerbeta; bladsvamp; cercospora; Cercospora beticola; betmjöldagg; Erysiphe betae; ramularia; Ramularia beticola; betrost; Uromyces betae; bekämpningströskel;

    Sammanfattning : Sockerbetor angrips av flertalet bladsvampar, bland annat Cercospora beticola, Erysiphe betae, Ramularia beticola och Uromyces betae. Erysiphe betae orsakar sjukdomen betmjöldagg medan Uromyces betae orsakar betrost. LÄS MER

  7. 5. Leaf structure and localization of a transgene protein in barley

    Kandidat-uppsats, SLU/Dept. of Plant Protection Biology

    Författare :Emelie Ivarson; Emma Leijman; [2009]
    Nyckelord :barley; powdery mildew; pathogenesis-related protein; PR-5; resistance;

    Sammanfattning : Barley is one of the most important cereals cultivated in the Nordic countries. Climate change brings warmer and moisture climate which favors fungal diseases. In the cropland barley can be seriously infested with hard fungus attack. LÄS MER