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Effect of sowing date and straw mulch on virus incidence and aphid infestation in organic faba-beans (Vicia faba L.) Organic Eprints
Saucke, H.; Juergens, M.; Döring, Th. F.; Lesemann, D.E.; Fittje, S.; Vetten, H.-J..
The effect of sowing date on aphid infestation and the incidence of aphid-transmitted viruses were investigated in organically managed, small-scale field experiments with two faba bean cultivars over 3 years (2002–04). As an additional factor, strawmulchwas applied in 2 of the 3 years shortly before the start of vector activity in May. Virus incidence was determined using enzyme-linked immunosorbent assay and immunoelectron microscopy. Aphid flight activity was monitored using standard yellow water traps. Bean colonising aphids were assessed throughout the vegetation period by counting the number of plants infested with Acyrthosiphon pisum, Megoura viciae and Aphis fabae. Pea enation mosaic virus and bean yellow mosaic virus were the most abundant...
Tipo: Journal paper Palavras-chave: Cereals; Pulses and oilseeds Crop health; Quality; Protection.
Ano: 2009 URL: http://orgprints.org/20013/1/2008.Saucke_et_al.AAB.pdf
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Entwicklung eines situationsbezogenen Konzeptes zur Regulation des Erbsenwicklers in Gemüse- und Körnererbsen Organic Eprints
Thöming, G.; Pölitz, B.; Kühne, A.; Wedemeyer, R.; Saucke, H..
Das Ziel des Projektes war es, ein Konzept zur Risikobewertung des Erbsenwicklerbefalls in Anbauregionen von Gemüseerbsen zu entwickeln, in dem präventive Maßnahmen und eine bedarfsgerechte Option zur Direktbekämpfung integriert sind. Die Datenerfassung zur Beurteilung von Risikolagen erfolgte in Erbsenanbaugebieten in Hessen und Sachsen, beide mit Schwerpunkt auf ökologischen Landbau. Die Risikobewertung umfasste die Abschätzung der Schlaggefährdung durch den Erbsenwickler innerhalb der Anbaugebiete mittels zeitlich-räumlicher Analysen und die Berücksichtigung phänologischer Daten zum Erscheinen, Flugaktivität und Entwicklung des Erbsenwicklers in Abhängigkeit von Temperatur und Photoperiode. Basierend auf der Risikobewertung sollten Entscheidungen zum...
Tipo: Report Palavras-chave: Vegetables Crop health; Quality; Protection.
Ano: 2008 URL: http://orgprints.org/17316/1/17316%2D05OE025%2Duni_kassel%2Dsaucke%2D2008%2Derbsenwicklerbefall.pdf
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