Nachrichtenblatt des Deutschen Pflanzenschutzdienstes (2007) 59, 276-279

Bernd Freier, Markus Schorling and Andreas Schober (2007)
Die Begleiter des Maiszünslers
[Insects associated with the European Corn Borer]
Nachrichtenblatt des Deutschen Pflanzenschutzdienstes 59 (11), 276-279
Abstract: Within a research program on ecological effects of growing Bt maize (Cry1Ab), the structure of arthropod communities in conventional non-insecticide treated maize fields was investigated in Oderbruch landscape (state Brandenburg) in the years 2000 to 2006. The methods used were counts, whole-plant harvests with arthropod determination in laboratory and pitfall trappings. The European corn borer (Ostrinia nubilalis) occurred in the range of economic threshold (0.43 larvae per stem), and seems to live relatively unrivalled and unrelated to other arthropod taxa in maize fields. Other pests such as frit fly (Oscinella frit) and aphids (Rhopalosiphum padi, Metopolophium dirhodum) infested maize in different densities independently from European corn borer. Aphid infestation rose up to the end of maize flowering and caused remarkable densities in most of the years; and induced a high presence of polyphagous and aphid-specific predators in that period. The potential of natural enemies of European corn borer was low. Estimations considering our results showed that about 1,000 arthropod species occurred in the maize fields.
(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): Bernd Freier

Research topic(s) for pests/diseases/weeds:
environment - cropping system/rotation
Research topic(s) for beneficials or antagonists:
environment/habitat manipulation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Ostrinia nubilalis	Maize/corn (Zea mays)	Germany
	Rhopalosiphum padi	Maize/corn (Zea mays)	Germany
	Metopolophium dirhodum	Maize/corn (Zea mays)	Germany
	Oscinella frit	Maize/corn (Zea mays)	Germany
Bacillus thuringiensis genes in crops (entomopathogen)	Ostrinia nubilalis	Maize/corn (Zea mays)	Germany