Nachrichtenblatt des Deutschen Pflanzenschutzdienstes (2007) 59, 280-286

Gustav-Adolf Langenbruch, Bernd Wührer and Bernd Hommel (2007)
Mit Trichogramma gegen Maiszünsler im Oderbruch? - Erfahrungen aus dem Jahr 2003
[About the efficacy of Trichogramma against the European Corn Borer in the Oderbruch, a region of eastern Germany, in 2003]
Nachrichtenblatt des Deutschen Pflanzenschutzdienstes 59 (11), 280-286
Abstract: In 2003 there was the possibility to use a part of a field trial of the official plant protection service in Brandenburg and the Monsanto company to control the European corn borer for own investigations about the efficacy of Trichogramma wasps (Chalciodea) under the conditions of the region 'Oderbruch' in eastern Germany. Because of negative experiences of other investigators in former years high doses and three applications of the Trichogramma were used. Nevertheless the reduction of larvae of the European corn borer was not sufficient in the extraordinary hot and dry climate of that year. Some possible reasons were: thunderstorm, not uniform growth of the plants, plants did not touch each other enough, many plants with rolling leaves and predatory ants. As this investigation comprises only one year it is not possible to generalize the results. But it seems that at these extreme conditions and at the high infestation level the use of Trichogramma against the European corn borer in the region Oderbruch needs - and can be improved.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: German)

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
inundative/inoculative release
evaluation - screening - selection

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Ostrinia nubilalis	Maize/corn (Zea mays)	Germany
Trichogramma (genus - parasitoids)	Ostrinia nubilalis	Maize/corn (Zea mays)	Germany