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Bekämpfung des Schneeschimmels (Microdochium majus) bei Winterweizen mit Naturstoffen – vom Labor ins Feld

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Vogelgsang, Susanne; Bänziger, Irene; Krebs, Heinz; Legro, Robert; Sanchez-Sava, Victor and Forrer, Hans-Rudolf (2013) Bekämpfung des Schneeschimmels (Microdochium majus) bei Winterweizen mit Naturstoffen – vom Labor ins Feld. Paper at: 12. Wissenschaftstagung Ökologischer Landbau, Rheinische Friedrich-Wilhelms-Universität, Bonn, 5. bis 8. März 2013.

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Summary

The fungal pathogen Microdochium majus, causing snow mould, seedling blight or foot rot results in severe yield losses in small grain cereals. There are few options to control this pathogen in organic production. In this study, aqueous extracts and powders from the botanicals chamomile, meadowsweet, thyme and Chinese galls were tested in vitro against M. majus conidia germination and mycelial growth. Subsequently, powders of three chosen botanicals were tested for their effect on emergence of M. majus infected wheat seedlings from soil in climate chambers. Furthermore, seed treatments with warm water, a commercialised bacterial product and one chosen botanical were tested in a field experiment throughout three consecutive years. Of the botanicals tested, Chinese galls showed the highest efficacy in controlling M. majus, reducing conidia germination and mycelial growth by up to 97 and 100 %, respectively. In the growth chamber, an application with Chinese galls compared with the control treatment increased total seedling emergence by up to 57 %. In the field, yield increase through Chinese galls, the bacterial product and the warm water treatment compared with the control was 19, 10 and 37 %, respectively. This study demonstrated the potential of Chinese galls to control M. majus in wheat.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:Getreide, Naturstoff, samenbürtig, Schneeschimmel
Subjects: Crop husbandry > Production systems > Cereals, pulses and oilseeds
Crop husbandry > Crop health, quality, protection
Research affiliation: Switzerland > Agroscope > ART - Reckenholz location
International Conferences > 2013: Scientific Conference Organic Agriculture > Plant & soil
Related Links:http://www.agroscope.admin.ch/phytopathologie/06083/index.html?lang=de, https://www.verlag-koester.de/index.php?id=114&tx_fbmagento, http://www.wissenschaftstagung.de/
Deposited By: Vogelgsang, Dr. Susanne
ID Code:21458
Deposited On:02 Oct 2012 18:21
Last Modified:11 Nov 2013 17:59
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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