Essays about: "pesticides"

Showing result 1 - 5 of 167 essays containing the word pesticides.

  1. 1. Unbiased pitch detection and phase estimation in entomological lidar

    University essay from Lunds universitet/Matematisk statistik

    Author : Johan Fogelmark; [2019]
    Keywords : Entomological lidar; wing beat frequency estimation; phas; Mathematics and Statistics;

    Abstract : Good insect monitoring is important for both disease vector control and e?cient usage of pesticides in farming. Entomological lidar has been proven useful for detecting and monitoring insects. For every insect that transit the laser beam a backscatter signal containing species-specific information is obtained. READ MORE

  2. 2. Fruktflugor ur Rhagoletis släktet som hot i odling i Sverige och möjliga bekämpningsmetoder

    University essay from SLU/Department of Plant Breeding (from 130101)

    Author : Christoffer Johansson; [2019]
    Keywords : Rhagoletis cerasi; Rhagoletis batava; Rhagoletis alternata; Rhagoletis pomonella; Rhagoletis mendax; körsbärsflugan; havtornsflugan; nyponflugan; bekämpning; bekämpningsmetoder;

    Abstract : Idag skeppas många varor fram och tillbaka över jorden och risken för att en skadegörare liftar med i en frukt eller växtmaterials jord ökar. I denna studie undersöks hotet av släktet Rhagoletis i Sverige och vilka flugor som finns, vilka som är på väg in och eventuella framtida hot. READ MORE

  3. 3. A Search for Neonicotinoid Binding Sites in the Optic Lobes of Honeybees and Blowflies

    University essay from Lunds universitet/Examensarbeten i molekylärbiologi

    Author : Ashley Hulcoop; [2019]
    Keywords : Biology and Life Sciences;

    Abstract : Neonicotinoid insecticides are agonists to nicotinic acetylcholine receptors (nAChRs) in the brains of insects. At sub-lethal doses these chemicals cause behavioral abnormalities in several bee species, reducing overall fitness. nAChRs expressed in the optic lobes of insects bind neonicotinoids, thus may be involved in these behavioral changes. READ MORE

  4. 4. Summer cover crops after harvest of early potatoes control seed weeds

    University essay from SLU/Department of Biosystems and Technology (from 130101)

    Author : Amanda Ahlqvist; [2019]
    Keywords : cover crops; buckwheat; Fagopyrum esculentum; sudangrass; Westerwoldisch ryegrass; crimson clover; Persian clover; seed weeds; weed management; marigold; tagetes; early potatoes; potatoes;

    Abstract : To reduce pesticides and find greener alternatives for weed management in crop production has been a big issue worldwide. In Sweden, the Board of Agriculture has developed grants for farmers who use e.g. cover crops and new and greener strategies (e. READ MORE

  5. 5. Determining the primary energy demand and greenhouse gas emission of carrots : Comparing organic and conventional small scale carrot production and supply in Sweden

    University essay from SLU/Dept. of Energy and Technology

    Author : Isac Jazin Jareborg; [2019]
    Keywords : LCA; GWP; CED; value chain; agriculture;

    Abstract : This study assessed the environmental performance of organic and conventional carrots produced and supplied in Sweden, as well as mapping out and describing the local carrot production and supply in Sweden to lay the roundwork for a decision support, primarily aimed at Swedish farmers and consumers. A life cycle assessment (LCA) methodology with the system boundary from carrot cultivation to consumer gate and a functional unit (FU) of 1 kg of carrots at the farm was applied, using the LCA software SimaPro 8. READ MORE