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Gebrauch biologischer Insektizide im Kampf gegen den Scaphoideus titanus, den Vektor von Flavescence dorée

Jermini, Mauro; Gusberti, Michele; Trivellone, Valeria; Wyss, Erich and Linder, Christian (2009) Gebrauch biologischer Insektizide im Kampf gegen den Scaphoideus titanus, den Vektor von Flavescence dorée. Poster at: 10. Wissenschaftstagung Ökologischer Landbau, Zürich, 11.-13. Februar 2009.

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Summary

Flavescence dorée and the mandatory control of its vector Scaphoideus titanus pose
important problems in organic vineyards. The goal of our field studies conducted in the
Ticino was to develop a pest control strategy conform to the guidelines of organic
production. Insecticides containing pyrethrin were the only organic products showing
an efficacy higher than 90% against the immature stages of S. titanus. However, these
products had no effect on adult leafhoppers. Repeated applications of pyrethrin
proved to be toxic against the predatory mite species Amblyseius andersoni. Despite
this toxicity, the only efficient and recommended control strategy in organic vineyards
is their application. Pyrethrin should be applied three times at an interval of ten days
after the first appearance of individuals of the 3rd nymphal stage. Symptomatic plants
must be eradicated from the vineyard to remove the phytoplasma inoculum.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Keywords:flavescence dorée, organic insecticide, predatory mite, control strategy, organic Vineyard
Subjects: Crop husbandry > Crop health, quality, protection
Research affiliation: Switzerland > Agroscope > ACW - Research Centre Changins
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: Jermini, Mauro
ID Code:14238
Deposited On:15 Apr 2009
Last Modified:12 Apr 2010 07:37
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

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