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Biological control of the cherry fruit fly, Rhagoletis cerasi L. (Diptera, Tephritidae) by use of entomopathogenic nematodes: first experiences towards practical implementation. Organic Eprints
Herz, Annette; Köppler, Kirsten; Vogt, Heidrun; Elias, Ellen; Peters, Arne; Katz, Peter.
The use of entomopathogenic nematodes (EPN) is a promising approach to control the cherry fruit fly, Rhagoletis cerasi L.. We already demonstrated the high potential of EPN to infect larvae after leaving the cherry for pupation in the soil in laboratory and field experiments. For practice, an application technique is needed, that is both, grower- and EPN friendly. We tested a tractor mounted spray boom for treatment under the canopy area. The achieved rate of EPN in the soil met the expectations. The activity of EPN in soil samples was high after application, but dropped to 60% of the initial activity within one week. Exact forecasting of larval drop from cherries is another major challenge. To obtain basic data, we recorded the phenology of...
Tipo: Conference paper, poster, etc. Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2006 URL: http://orgprints.org/13795/1/ecofruit_12th_12.pdf
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Anwendung natürlich vorkommender Gegenspieler der Kohlmottenschildlaus (KMSL) in Kohlgemüse im kombinierten Einsatz mit Kulturschutznetzen Organic Eprints
Schultz, Britta; Zimmermann, Olaf; Liebig, Nadine; Wedemeyer, Rainer; Leopold, Jörg; Rademacher, Jörg; Katz, Peter; Rau, Florian; Saucke, Helmut.
Ziel des Verbundvorhabens war die Erarbeitung einer kombinierten Regulierungsstrategie für die Kohlmottenschildlaus Aleyrodes proletella in Ökologischem Kohlgemüse, mit den zwei Ansatzpunkten Kulturschutznetz & natürlichen Gegenspielern. Das sofortige Abdecken von Rosenkohl mit feinmaschigem Kulturschutznetz (0,8 x 0,8mm) ab dem Verpflanzen bis Ende Oktober erzielte durchgängig 77% Befallssenkung in der Hauptbefallsphase im September. Aufdecken der Netze für mechanische Unkrautbekämpfung bildet ein kritisches Zeitfenster für Initialbefall. Verzicht auf Hacken durch Anwendung einer biologisch abbaubaren Mulchfolie brachte allerdings keinen zusätzlichen Regulationserfolg. Die unter Netz eingesetzte Schlupfwespe Encarsia tricolor und der Marienkäfer...
Tipo: Report Palavras-chave: Vegetables Crop health; Quality; Protection.
Ano: 2010 URL: http://orgprints.org/18149/1/18149%2D06OE339%2Duni_kassel%2Dsaucke%2D2010%2Dkohlmottenschildlaus.pdf
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Biological control of the cherry fruit fly, Rhagoletis cerasi L. (Diptera, Tephriti-dae) by use of entomopathogenic nematodes: first experiences towards practi-cal implementation. Organic Eprints
Herz, Annette; Köppler, Kirsten; Vogt, Heidrun; Elias, Ellen; Katz, Peter; Peters, Arne.
The use of entomopathogenic nematodes (EPN) is a promising approach to control the cherry fruit fly, Rhagoletis cerasi L.. We already demonstrated the high potential of EPN to infect larvae after leaving the cherry for pupation in the soil in laboratory and field experiments. For practice, an appli-cation technique is needed, that is both, grower- and EPN friendly. We tested a tractor mounted spray boom for treatment under the canopy area. The achieved rate of EPN in the soil met the ex-pectations. The activity of EPN in soil samples was high after application, but dropped to 60% of the initial activity within one week. Exact forecasting of larval drop from cherries is another major chal-lenge. To obtain basic data, we recorded the phenology of infestation...
Tipo: Conference paper, poster, etc. Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2006 URL: http://orgprints.org/8819/1/ecofruit_12th_12.pdf
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Biologische Regulierung der Weißen Fliege im Kohlanbau im kombinierten Einsatz mit Kulturschutznetzen Organic Eprints
Schultz, Britta; Zimmermann, Olaf; Wedemeyer, Rainer; Liebig, Nadine; Katz, Peter; Saucke, Helmut.
Die Kohlmottenschildlaus, Aleyrodes proletella [Hom.,Aleyrodidae] hat sich in ganz Deutschland zu einem wichtigen Schädling in Kohlgemüse, insbesondere Rosenkohl, entwickelt. In einem dreijährigen Projekt wurde die Barrierewirkung von feinmaschigen Kulturschutznetzen (0.8x0.8mm) in Kombination mit einem inundativen Einsatz des natürlich vorkommenden Parasitoiden Encarsia tricolor in Parzellenversuchen untersucht. Durch die alleinige Anwendung der Kulturschutznetze war der Kohlmottenschildlausbefall zum Befallsmaximum im September in allen drei Versuchsjahren um 77% verringert gegenüber der Kontrolle ohne Netz . Durch die Ausbringung von E. tricolor unter die Netze stieg die Partasitierung signifikant gegenüber der Netzvariante ohne Ausbringung an. Eine...
Tipo: Conference paper, poster, etc. Palavras-chave: Crop health; Quality; Protection.
Ano: 2011 URL: http://orgprints.org/17725/3/Schultz_17725.pdf
Registros recuperados: 4
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