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Development of a strategy for fire blight control in organic fruit growing

Kunz, Stefan and Haug, Philipp (2006) Development of a strategy for fire blight control in organic fruit growing. [Entwicklung einer Strategie zur Feuerbrandbekämpfung im ökologischen Obstbau.] In: Boos, Markus (Ed.) ecofruit - 12th International Conference on Cultivation Technique and Phytopathological Problems in Organic Fruit-Growing: Proceedings to the Conference from 31st January to 2nd February 2006 at Weinsberg/Germany, Fördergemeinschaft Ökologischer Obstbau e.V. (FÖKO), Weinsberg, Germany, pp. 145-150.

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Summary

Effective control strategies are needed in organic fruit growing to prevent blossom infections by the fire blight pathogen Erwinia amylovora. There are many potential control agents under discussion. 18 preparations have been tested for their efficiency against Erwinia amylovora. Twelve of them were highly effective against E. amylovora in vitro. Nevertheless only five of them led to a symptom reduction of more than 50% on de-tached apple blossoms. These results and data on field performance from the literature indicate that Blos-som-Protect is the most effective preparation to prevent blossom infections by fire blight. Therefore further experiments have been performed to develop a strategy for the use of Blossom-Protect in organic fruit grow-ing. The side effect of Blossom-Protect on fruit russeting was tested in two field trials in 2005. No increase of fruit russet was detected in the varieties `Jonagored` and `Golden Delicious` after 2 or 3 applications of Blossom-Protect during bloom.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:Fire blight, Erwinia amylovora, Blossom-Protect, Mycosin, Copper, Russeting, BÖL, BOEL, FKZ 03OE524/4, FKZ 03OE524/4F
Subjects: Crop husbandry > Crop health, quality, protection
Crop husbandry > Production systems > Fruit and berries
Research affiliation: Germany > Fördergemeinschaft Ökologischer Obstbau - FÖKO
Germany > University of Konstanz > Department of Biology
International Conferences > 2006: Ecofruit
Related Links:http://www.foeko.de/ecofruit.htm, http://www.bundesprogramm-oekolandbau.de, http://www.bundesprogramm.de/fkz=03OE524/4, http://www.bundesprogramm.de/fkz=03OE524/4F, http://orgprints.org/perl/search/advanced?addtitle%2Ftitle=&keywords=03OE524&projects=BOEL&_order=bypublication&_action_search=Suchen, http://www.ecofruit.net
Deposited By: Boos, Markus
ID Code:8844
Deposited On:26 Jul 2006
Last Modified:26 Aug 2010 12:48
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted
Additional Publishing Information:The proceedings are available as paperback at Fördergemeinschaft Ökologischer Obstbau e.V. (FÖKO), Traubenplatz 5, D-74189 Weinsberg, www.foeko.de

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