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Kann der Einsatz entomopathogener Nematoden zur nachhaltigen Bekämpfung der Kirschfruchtfliege beitragen?

Herz, Annette; Köppler, Kirsten and Vogt, Heidrun (2007) Kann der Einsatz entomopathogener Nematoden zur nachhaltigen Bekämpfung der Kirschfruchtfliege beitragen? [Can entomopathogenic nematodes enhance sustainable control of the cherry fruit fly?] Paper at: Zwischen Tradition und Globalisierung - 9. Wissenschaftstagung Ökologischer Landbau, Universität Hohenheim, Stuttgart, Deutschland, 20.-23.03.2007.

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Summary

The cherry fruit fly, Rhagoletis cerasi L., is the major pest of sweet cherries in Europe. Currently, no efficient control method is available and there is the risk of increasing population densities of this pest. Entomopathogenic nematodes caused high mortality of last instar maggots, when entering the soil for pupation, under laboratory and field conditions. First field applications of these biocontrol agents against pupating larvae in 2005 should test their efficacy to reduce pest densities. Accompanying field observa-tions were made to evaluate the degree of natural mortality of the cherry fruit fly during the pupation phase in order to decide if the application of nematodes could substan-tially contribute to control this pest. According to the results in this year, natural mortal-ity factors reduced the cherry fruit fly population from the period between larvae leav-ing the fruit until hatching of adults in the following year by 95%. The emergence rate of adult flies in spring 2006 was low (10 flies/qm) and no significant differences in the densities of emerging flies in untreated and treated areas were detected. Thus, the effect of applying nematodes remained unclear and additional methods are needed to define their impact separately from natural mortality.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:Obst- und Weinbau, Pflanzenschutz, Naturschutz und Umwelt-verträglichkeit, biologische Bekämpfung
Subjects: Environmental aspects > Biodiversity and ecosystem services
Crop husbandry > Crop health, quality, protection
Research affiliation: International Conferences > 2007: Scientific Conference on Organic Agriculture > 1 Plant and Soil > 1.4 Plant health
Deposited By: Herz, Dr Annette
ID Code:9647
Deposited On:10 May 2007
Last Modified:12 Apr 2010 07:34
Document Language:German - Deutsch
Status:Published
Refereed:Peer-reviewed and accepted
Additional Publishing Information:Die endgültige Version des Beitrags ist veröffentlicht in:
S. Zikeli, W. Claupein, S. Dabbert, B. Kaufmann, T. Müller und A. Valle Zárate, Hrsg. (2007)
Zwischen Tradition und Globalisierung – 9. Wissenschaftstagung Ökologischer Landbau, Universität Hohenheim, Deutschland, 20.-23. März 2007, http://orgprints.org/10742/

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