home    about    browse    search    latest    help 
Login | Create Account

Nectria galligena as the cause of a collar rot disease in organically grown Topaz apple trees


Downloads per month over past year

View more statistics

Weber, Roland W. S. and Klopp, Karsten (2006) Nectria galligena as the cause of a collar rot disease in organically grown Topaz apple trees. [Nectria galligena als Ursache einer Kragenfäule-ähnlichen Krankheit bei der Apfelsorte Topaz 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. 121-124.

PDF - English


Symptoms resembling collar rot were detected in organically managed Topaz trees aged 3-10 years, occur-ring one to several years after planting of the orchard. Trees were killed within the same growing season in which symptoms were first observed. The disease commonly progressed as a complete covered canker at the base of the tree trunk. Isolation attempts were negative for Phytophthora and other Oomycetes, but con-sistently yielded Nectria galligena. The possibility of latent (endophytic) infections of N. galligena as the cause of delayed collar rot symptoms is briefly discussed.

EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:apple, canker, collar rot, endophyte, Nectria galligena, Topaz
Subjects: Crop husbandry > Crop health, quality, protection
Crop husbandry > Production systems > Fruit and berries
Research affiliation: Germany > Fördergemeinschaft Ökologischer Obstbau - FÖKO
International Conferences > 2006: Ecofruit
Related Links:http://www.ecofruit.net, http://www.foeko.de/ecofruit.htm
Deposited By: Boos, Markus
ID Code:8840
Deposited On:26 Jul 2006
Last Modified:26 Aug 2010 12:21
Document Language:English
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

Repository Staff Only: item control page