Nowak, Andrea; Konstantinidou-Doltsinis, Dr. Stavroula; Seddon, Dr. Barrie and Schmitt, Dr. Annegret (2009) Möglichkeiten der Bekämpfung des Falschen Mehltaus an Gurke (Pseudoperonospora cubensis) mit alternativen Präparaten. Paper at: 10. Wissenschaftstagung Ökologischer Landbau, Zürich, 11.-13. Februar 2009.
PDF
- German/Deutsch
106kB |
Summary
In organic cucumber production the infection with downy mildew (Pseudoperonospora
cubensis) is one of the major problems. Use of biological control agents based on
plant extracts and antagonistic micro organisms may be one possibility to control the
disease.
Plant extracts from Salvia officinalis and a plant belonging to the family Fabaceae
(P1), as well as cultures of Brevibacillus brevis showed, in bioassays on potted
cucumber plants, high potential to control the disease with efficacies between 55%
and 100%. For S. officinalis extract the efficacy was close to 100% even at a
concentration of 0.1325%. Initial trials under commercial growing conditions showed
that the control of P. cubensis is better in protected than in open field production. In
order to optimise the efficacy of the preparations for use in commercial cucumber
production, further investigations on the mode of action, the active ingredients etc. are
under way.
EPrint Type: | Conference paper, poster, etc. |
---|---|
Type of presentation: | Paper |
Keywords: | organic cucumber production, biological control, downy mildew, plant extracts, antagonistic micro-organisms. |
Subjects: | Crop husbandry > Crop health, quality, protection Crop husbandry > Production systems > Vegetables |
Research affiliation: | International Conferences > 2009: Scientific Conference on Organic Agriculture > Pflanze und Boden > Gemüsebau / Sonderkulturen International Conferences > 2009: Scientific Conference on Organic Agriculture > Pflanze und Boden > Pflanzengesundheit |
Related Links: | http://www.wissenschaftstagung.de/, http://www.verlag-koester.de/buch.php?id=645&start=0&fb_id=37 |
Deposited By: | Schmitt, Dr. Annegret |
ID Code: | 14653 |
Deposited On: | 09 Apr 2009 |
Last Modified: | 12 Apr 2010 07:38 |
Document Language: | German/Deutsch |
Status: | Published |
Refereed: | Peer-reviewed and accepted |
Additional Publishing Information: | Dieser Beitrag ist im Tagungsband der 10. Wissenschaftagung erschienen: Mayer, J.; Alföldi, T.; Leiber, F.; Dubois, D.; Fried, P.; Heckendorn, F.; Hillmann, E.; Klocke, P.; Lüscher, A.; Riedel, S.; Stolze, M.; Strasser, F.; van der Heijden, M. and Willer, H., (Hrsg.) (2009) Werte – Wege – Wirkungen: Biolandbau im Spannungsfeld zwischen Ernährungssicherung, Markt und Klimawandel. Beiträge zur 10. Wissenschaftstagung Ökologischer Landbau, Zürich, 11.-13. Februar 2009. Band 1: Boden, Pflanzenbau, Agrartechnik, Umwelt- und Naturschutz, Biolandbau international, Wissensmanagement Band 2: Tierhaltung, Agrarpolitik und Betriebswirtschaft, Märkte und Lebensmittel. Verlag Dr. Köster, Berlin. Der Tagungsband kann beim Verlag Dr. Köster bezogen werden; siehe http://www.verlag-koester.de/buch.php?id=645&start=0&fb_id=37 |
Repository Staff Only: item control page