Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 6 of 6 for “"spodoptera littoralis"”.
-
Nutrition modulates the interaction between the bacterium Xenorhadbus nematophila and its lepidopteran host Spodoptera littoralis
… insects. Using the Egyptian cotton leafworm, Spodoptera littoralis (Lepidoptera: Noctuidae) and its natural pathogen Xenorhabdus nematophilus (Enterobacteriaceae) as a model system, this thesis investigates the influence of host nutrition on pathogen virulence and host resistance/tolerance. …
-
Elicitoren der Duftstoffemission von Rainfarnpflanzen
… Elicitoren im Vorderdarmsekret (Regurgitat) von Spodoptera littoralis - Raupen für die Auslösung der Duftstoffproduktion in Rainfarnpflanzen. Vier HPLC-Fraktionen F0/2, F0/4, F0/5 und F0/6 der durch Festphasenextraktion aus dem Regurgitat von Spodoptera littoralis - Raupen erhaltenen Fraktion F0 …
-
Symbionts and immune defence in lepidopteran crop pests
… increased its expression. Lastly, we found that Spodoptera littoralis, another noctuid that exhibits density- dependent prophylaxis and phase polyphenism, presents higher immune levels in the presence of a haemocoel invader when reared gregariously. We also found that biochemical activity of main …
-
Biosensoren auf der Basis von Halbleiter-Feldeffektstrukturen mit angekoppelten Insektenantennen
… species (potato beetle, steelblue jewel beetle, spodoptera littoralis, diabrotica undecimpunctata) as well as odor substances (cis-3-hexen-1-ol, guaiacol, 1-octen). Depending on the insect species, odor concentrations could be reproducably detected down to the low ppt-range. In measurements in a …
-
Insektizide Rocaglamid-Derivate und Verwandte Verbindungen aus Aglaia-Arten (Meliaceae)
… frisch geschlüpften Raupen des Schadinsektes Spodoptera littoralis (Noctuidae) untersucht. Die getesteten Proben stammen aus Vietnam und Südchina. Aus den in diesem Bioscreening aufgefallenen Extrakten wurden mit Hilfe von durch Biotests begleiteter Fraktionierung sowie parallel durchgeführten …
-
A biologically-active pest deterrent: what is the mode-of-action and how does this affect pest behaviour?
… and antifeedant properties of the product on Spodoptera littoralis, when presented with treated semi-artificial wheatgerm-based diet cubes, Triticum aestivum leaves, and Brassica napus ssp. Pabularia leaves. Additionally, the ability of the Ca2+ ion from the active component to penetrate …