Nachrichtenblatt des Deutschen Pflanzenschutzdienstes (2006) 58, 249-250

Rainer Meyhöfer and Martin Hommes (2006)
Strategien zur Befallsreduzierung der Rosskastanien-Miniermotte im öffentlichen Grün: Informationen anlässlich des Statusseminars am 9. and 10. Februar 2006 in der Biologischen Bundesanstalt fur Land- and Forstwirtschaft, Braunschweig, Deutschland
[Strategies to reduce horse chestnut leafminer infestation in public greens: New information from the symposium held on 9-10 February at the Federal Biological Research Centre for Agriculture and Forestry, Braunschweig, Germany]
Nachrichtenblatt des Deutschen Pflanzenschutzdienstes 58 (10), 249-250
Abstract: The Federal Biological Research Centre for Agriculture and Forestry organised for the third time a symposium on current research progress on horse chestnut leafminer (Cameraria ohridella Deschka and Dimic) control. Except for some bordering areas the horse chestnut leafminer has established itself in most of the European countries. Population densities of the leafminer are still very high which has raised public concern in relation to the damage. In total 42 scientists attended the workshop. The focus was on biological and biotechnical strategies to reduce infestation levels of the horse-chestnut leafminer. These strategies include natural enemies of the horse chestnut leafminer and different volatiles that influence the behaviour of the adult moth.
Most presentations came from working groups based in Berlin and Braunschweig. In Berlin, this research has been part of the 'BerlinCam' - Project which investigates practice-oriented solutions for large cities. In Braunschweig the research activities have been supported by the German Ministry of Education and Research (BMBF) and focus on biotechnical control strategies. All experiments have been conducted in experimental units that include five horse chestnut trees of the same age. This allows for standardised experimental conditions and direct comparisons of the efficiency of different plant protection strategies Therefore the influence of site variability on experimental results, which often is a constraint on the interpretation of results, could be minimised. As a consequence, results are reliable and reproducible. The contributions to the symposium were complemented by an overview of the results of the European CONTROCAM-Project. There was also a presentation on the perception of the horse chestnut leafminer by the press and public in Germany as well as two presentations on the use of repellents and host plant volatiles as alternative control strategies.
Overall the results show that the development of biological and biotechnical strategies to reduce infestation levels in the public green has made good progress. Additionally, the contributions and discussions clearly showed that control strategies well established in viticulture and pomiculture can not be easily transferred to control the horse chestnut leafminer: There are still several open questions that have to be resolved before sustainable control strategies can be established against the horse chestnut leafminer in public greens.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: German)
Database assignments for author(s): Rainer Meyhöfer, Martin Hommes

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Cameraria ohridella	Horse-chestnut/buckeye (Aesculus)	Germany