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Entwicklung eines biologischen Pflanzenschutzmittels aus Süßholz zur Anwendung an Freilandgemüse

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Leinhos, Gabriele; Marx, Peggy; Pauz, Ewald and Gärber, Ute (2013) Entwicklung eines biologischen Pflanzenschutzmittels aus Süßholz zur Anwendung an Freilandgemüse. Poster at: 12. Wissenschaftstagung Ökologischer Landbau, Rheinische Friedrich-Wilhelms-Universität, Bonn, 5. bis 8. März 2013.

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Summary

The plant extract from Glycyrrhiza glabra (liquorice) has a proven efficacy against Oomycetes in several vegetable crops under controlled conditions (greenhouse), however the liquorice extract shows varying efficacy when applied in the field. Therefore, a joint project funded by the Federal Institute for Agriculture and Food (Bundesanstalt für Landwirtschaft und Ernährung, BLE) aims to develop a plant protection product based on liquorice extract, which is highly effective in the field against Pseudoperonospora cubensis and Phytophthora infestans. Semi-field systems in cucumber and tomato have been established to test novel extract formulations on rainfastness and UV stability as well as on application parameters to maximize disease control. The results of three selected liquorice extract formulations demonstrate the effects of simulated rain and sun exposure on the biological activity in the semi-field systems. None of the tested formulations proved efficiently stable to rain and sun exposure. In addition, first results of a cucumber field trial will be presented. The testing for more stable liquorice extract formulations will be continued.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Keywords:Gurke, Tomate, Pseudoperonospora cubensis, Phytophthora infestans
Subjects: Crop husbandry > Crop health, quality, protection
Research affiliation: International Conferences > 2013: Scientific Conference Organic Agriculture > Plant & soil
Related Links:http://www.wissenschaftstagung.de/, https://www.verlag-koester.de/index.php?id=114&tx_fbmagento[shop][route]=catalog&tx_fbmagento[shop][controller]=product&tx_fbmagento[shop][action]=view&tx_fbmagento[shop][id]=1137&tx_fbmagento[shop][s]=beitrage-zur-12-wissenschaftstagung-okologischer-land
Deposited By: Marx, Dr. Peggy
ID Code:21434
Deposited On:09 Sep 2013 12:31
Last Modified:11 Nov 2013 16:57
Document Language:German/Deutsch
Status:Published
Refereed:Peer-reviewed and accepted
Additional Publishing Information:Dieser Beitrag ist im Tagungsband der 12. Wissenschaftstagung erschienen.
Dr. D. Neuhoff, C. Stumm, S. Ziegler u.a. (Hrsg.)
Beiträge zur 12. Wissenschaftstagung Ökologischer Landbau
Ideal und Wirklichkeit: Perspektiven ökologischer Landbewirtschaftung
Erscheinungsjahr: 2013
ISBN-13: 9783895748158
Verlag Dr. Köster, Berlin

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