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Systems for testing the efficacy of biofungicides and resistance inducers against grapevine downy mildew (REPCO project)

Schweikert, Carmen; Mildner, Manuel; Vollrath, Claudia and Kassemeyer, Dr. Hanns-Heinz (2006) Systems for testing the efficacy of biofungicides and resistance inducers against grapevine downy mildew (REPCO project). Poster at: Joint Organic Congress, Odense, Denmark, May 30-31, 2006.

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Summary

Abstract –At present grapevine downy mildew is controlled by fungicides mostly not suitable for or-ganic viticulture. The aim of REPCO (Replacement of Copper Fungicides in Organic Production if Grapevine and Apple in Europe) is to find new copper replacing products. Also the activation of the innate defence response by resistance inducers is a potential ap-proach for the biological control of grapevine downy mildew in organic viticulture. The efficacy of potential biofungicides and resistance inducers against grape-vine downy mildew was tested on leaf discs and on cell suspension culture, respectively. In a first step the direct effect on the pathogen is assessed in a leaf disc test. The activation of defence response is de-termined in a cell suspension culture. Molecules from microbes, products from the secondary plant metabo-lism and oligosaccharides from animals and plants showed an efficacy against the pathogen and induced resistance response.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Subjects: Crop husbandry > Crop health, quality, protection
Research affiliation: International Conferences > 2006: Joint Organic Congress > Theme 5: Protecting plant health
Deposited By: Kassemeyer, Dr. Hanns-Heinz
ID Code:7492
Deposited On:09 May 2006
Last Modified:12 Apr 2010 07:32
Document Language:English
Status:Published
Refereed:Not peer-reviewed

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