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Grapevine breeding aproaches to combat Drosophila suzukii
Project
Project code: JKI-ZR-08-5203
Contract period: 01.09.2015
- 30.09.2017
Since 2014 a novel fruit fly (Drosophila suzukii) introduced from Asia became a new threat for viticulture. From a viticulture point of view, these flies settled in the same habitat (mature / overripe grapes) as the native fruit fly Drosophila melanogaster. For both insects grapes are especially attractive when they are already (pre-)damaged. Promotional weather provided e.g. cracks in the grape skin, damage due to wasps and/or birds are ideal starting points for the mass occurrence of Drosophila species but also simultaneously for Botrytis. The Drosophilia species received particular importance, as they contribute to a rapid spread of micro-organisms in particular acetic acid bacteria and thus promote acid rot. Drosophila species and Botrytis form a common threat to viticulture, which are favored by vine properties. Gabler et al. 2003 point out that physical barriers provide contributions to Botrytis resistance. Therefore, resistance breeding is of great importance to select new varieties with high mechanical resistance at the time of full maturity.
Section overview
Subjects
- Plant Breeding
- Crop Protection
- Viticulture
