Sökning: "y-tube"

Hittade 3 uppsatser innehållade ordet y-tube.

  1. 1. Can alteration in host odor blends change the olfactory preferences in Spodoptera littoralis?

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

    Författare :Hanna Olovsson; [2017]
    Nyckelord :host preference; Spodoptera littoralis; induction of feeding; cotton; olfactometer; y-tube;

    Sammanfattning : Gustatory and olfactory stimuli have been shown to induce feeding preferences in generalist phytophagous insect species. Generalists have to process a lot of information while performing host selection and it has been suggested that this may be a limitation, while it makes the host detection slower than for specialist species that process a lower amount of information. LÄS MER

  3. 2. Effect of diet and density on larval immune response and larval and adult host-preference in Spodoptera littoralis

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

    Författare :Sophie Chattington; [2015]
    Nyckelord :artificial encapsulation; Egyptian cotton leafworm; immune response; innate preference hierarchy; larval density; larval development; larval memory; oviposition choice; phenoloxidase; Spodoptera littoralis; Y-tube;

    Sammanfattning : Polyphagy presents difficulties to an insect, especially in terms of host choice. The adult insect must choose from a large number of possible host plant species, something which is considered to require extensive neural capacity to process. LÄS MER

  4. 3. Responses of the swede midge, Contarinia nasturtii, to volatile compounds from Arabidopsis thaliana and Brassica oleracea var. botrytis

    L3-uppsats, SLU/Dept. of Plant Protection Biology

    Författare :Johannes Albertsson; [2008]
    Nyckelord :swede midge; Contarinia nasturtii; Brassicaceae; cauliflower; Arabidopsis thaliana; volatiles; olfactometer;

    Sammanfattning : The swede midge, Contarinia nasturtii, is a serious gall-forming insect pest of most cultivated Brassicaceae such as cauliflower and cabbage. Arabidopsis thaliana, also a Brassicaceae, is a well-known model plant for which the genome is sequenced and several well-characterized mutants and transgenic genotypes are available. LÄS MER