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Gewählte Publikation:

Spitaler, U; Bianchi, F; Eisenstecken, D; Castellan, I; Angeli, S; Dordevic, N; Robatscher, P; Vogel, RF; Koschier, EH; Schmidt, S.
(2020): Yeast species affects feeding and fitness ofDrosophila suzukiiadults
J PEST SCI. 2020; 93(4): 1295-1309. FullText FullText_BOKU

Abstract:
Yeasts play an important role in the life cycle and biology of the insect pestDrosophila suzukii(Matsumura), commonly known as the spotted wing drosophila (SWD). Adult and larvae of this species are known to feed and benefit from yeast in their diet. In addition, yeasts were found to be attractive to SWD and were repeatedly found to be associated with SWD. Among those,Hanseniaspora uvarumis the most commonly mentioned. The present study explores the chemical composition and the effects of threeH. uvarumstrains and five yeast species (Saccharomyces cerevisiae, Candidasp.,Issatchenkia terricola, Metschnikowia pulcherrimaandSaccharomycopsis vini) in the diet of SWD adults. The different yeast species used in this study influenced mortality, fecundity and ingestion by SWD females.Hanseniaspora uvarumandS. viniwere preferably ingested and increased fecundity of SWD females. The intra- and extracellular concentrations of compounds, such as amino acids, carbohydrates, sugar alcohols and organic acids, produced or consumed by yeasts differed among the species. Knowledge of the interaction of different yeast species with SWD and specific differences in the profile of compounds of yeast can help to improve the development of control strategies against the insect pest by promoting the ingestion of attract-and-kill formulations based on the combinations of yeasts and an appropriate insecticide.
Autor/innen der BOKU Wien:
Koschier Elisabeth Helene
BOKU Gendermonitor:


Find related publications in this database (Keywords)
Fecundity
Hanseniaspora uvarum
Ingestion
Spotted wing drosophila
Yeast metabolites


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