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Nutrition ecology of Ascogaster quadridentata (Hymenoptera, Braconidae) and its host in apple orchards

Herz, Annette; Drexler, Nils; Matray, Silvia and Veekmann, Oliver (2017) Nutrition ecology of Ascogaster quadridentata (Hymenoptera, Braconidae) and its host in apple orchards. Poster at: 5th International Entomophagous Insects Conference, Kyoto, Japan, October 16-20, 2017. [Completed]

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The codling moth, Cydia pomonellaL. (Lepidoptera, Tortricidae) is the key pest in apple growing worldwide. Its increasing resistance against various insecticides, including granulosevirus based plant products, initiate the search for supporting tools for natural control, e.g. the activity of parasitoids. The Chelonine species Ascogaster quadridentata, an egg-larval parasitoid, does not host-feed, but requires sustainable access to sugar resources for nutrition. In the framework of the European CoreOrganic Plus project EcoOrchard (http://coreorganicplus.org/researchprojects/ ecoorchard/)weestablished flowering strips in the rows between trees with the aim to support natural enemies. In adjacent laboratory tests we explored which kind of flowering plants and sugars can be used by this parasitoid species.
Furthermore we investigated whether also the codling moth couldprofit from the provision of these floral resources. The results will help to give recommendations to growers how they can maintain a targeted floral diversity which support the activity of natural enemies, but not of pests.

EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Keywords:sugar, lifetime fecundity, flowering plants, nectar resources, CoreOrganicPlus, EcoOrchard
Subjects: Environmental aspects > Biodiversity and ecosystem services
Crop husbandry > Production systems > Fruit and berries
Crop husbandry > Crop health, quality, protection
Research affiliation: Germany > Federal Research Centre for Cultivated Plants - JKI > Institute for Biological Control
European Union > CORE Organic Plus > ECOORCHARD
Horizon Europe or H2020 Grant Agreement Number:618107
Related Links:http://coreorganicplus.org/research-projects/ecoorchard/
Deposited By: Herz, Dr. Annette
ID Code:32266
Deposited On:09 Nov 2017 10:52
Last Modified:09 Nov 2017 10:52
Document Language:English
Refereed:Not peer-reviewed

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