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Registros recuperados: 254
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Effects of autumn kaolin treatments on the rosy apple aphid Dysaphis planaginea (Pass.) and possible modes of action. Organic Eprints
Bürgel, K.; Daniel, Claudia; Wyss, Eric.
Autumn applications of the repellent processed-kaolin particle film (Surround ® WP) might be an alternative to the insecticides commonly used in spring to control the rosy apple aphid, Dysaphis plantaginea (Pass.) (Hom., Aphididae). To assess the mode of action and the impact of kaolin on autumn forms of D. plantaginea, trials were conducted in field cages and in open-fields in autumn 2003. Choice and no-choice experiments in field cages showed that winged aphids landed in significantly lower numbers and gave birth to significantly fewer females on kaolin-treated branches compared with the untreated control. In a first open-field trial, single applications at 10 different dates and with two different concentrations of kaolin were conducted after harvest to...
Tipo: Journal paper Palavras-chave: Crop health; Quality; Protection.
Ano: 2005 URL: http://orgprints.org/6056/1/Daniel%2D2005%2Dautumn%2Dkaolin.pdf
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Effects of landscape and region on pests and pathogens in Brassica vegetables and oilseed rape. Organic Eprints
Daniel, Claudia; Collier, Rosemary; Thomas, Jane; Hommes, Martin.
Abstract: Pests and pathogens of Brassica vegetables and oilseed rape are mainly managed at a field level. Management of pest insects at a farm level is only suitable for farmers owning compact areas of land, which is not the case in many central European areas. This paper discusses the effects of landscape and region on pests and pathogens in Brassica crops. Topics covered include pest and disease dispersal and persistence, regional races or biotypes, new pests and pathogens, insecticide resistance, conservation biocontrol and monitoring and forecasting.
Tipo: Journal paper Palavras-chave: Crop health; Quality; Protection.
Ano: 2016 URL: http://orgprints.org/32315/1/2016_IOBCCollierBrassica.pdf
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Effects of landscape and region on pests and pathogens in Brassica vegetables and oilseed rape Organic Eprints
Daniel, Claudia; Collier, Rosemary; Thomas, Jane; Hommes, Martin.
Pests and pathogens of Brassica vegetables and oilseed rape are mainly managed at a field level. Management of pest insects at a farm level is only suitable for farmers owning compact areas of land, which is not the case in many central European areas. This situation favours direct, short-term control of mobile pests and pathogens over preventive, long-term strategies to lower the overall population level. Regional or area-wide control is difficult to establish because it requires considerable collaboration between neighbouring farmers. In addition, research institutions usually lack the appropriate size of farms to prove that these strategies can have a reliable efficacy which would warrant greater efforts by farmers to collaborate on a regional basis....
Tipo: Working paper Palavras-chave: Crop health; Quality; Protection.
Ano: 2015 URL: http://orgprints.org/32293/1/2015_FocusGroupBrassica_Landscape.pdf
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Efficacy of different insecticides against the woolly apple aphid (Eriosoma lanigerum) Organic Eprints
Daniel, Claudia; Wyss, Eric.
Questions: Efficacy of different Insecticides against the woolly apple aphid (Eriosoma lanigerum)
Tipo: Report Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2003 URL: http://orgprints.org/8529/1/daniel%2Dwyss%2D2003_11e_BlutlausEnglish.pdf
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Efficacy of different insecticides and a repellent against the European pear sucker (Cacopsylla pyri) Organic Eprints
Daniel, Claudia; Wyss, Eric.
The efficacy of different insecticides (neem, pyrethrin, spinosad, and rotenone) and a repellent (kaolin) applied with different strategies (single or repeated applications) against the over-wintering pear suckers (Cacopsylla pyri) and nymphs of the first generation was tested in a field trial in Switzerland in spring 2003. Rotenone, the only admitted product in Swiss organic agriculture, showed good effects. But, since Rotenone is toxic for non-target insects we looked for an alternative. The application of spinosad (Audienz) in combination with rape oil (Telmion) as well as the application of pyrethrum showed similar efficacy as rotenone. Neem had no or a very low impact on the pear sucker populations. The repellent kaolin (Surround® WP) showed...
Tipo: Conference paper, poster, etc. Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2004 URL: http://orgprints.org/14029/1/7_Daniel_35_40.pdf
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Efficacy of organic plant protection programs against Myzus cerasi on cherries Organic Eprints
Cahenzli, Fabian; Daniel, Claudia.
This project evaluated the efficacy of seven different organic plant protection programs against the black cherry aphid Myzus cerasi (MYZUCE) in a low stem cherry orchard. The standard paraffin oil (Weissöl) applied after bud swelling (BBCH 03) significantly reduced the number of infested long shoots and aphid colony size, represented by the number of curled leaves. Additional treatments with Pyrethrum (Pyrethrum FS) and Neem oil (Neem Azal T/S) added no further efficacy. Neem oil and Majestik applied twice showed only limited efficacy. A test oil was clearly less efficient than the standard paraffin oil. Ant baits placed on the stems after bud swelling to prevent ants from promoting aphids offered an interesting, sustainable control approach should for...
Tipo: Report Palavras-chave: Fruit and berries Crop health; Quality; Protection.
Ano: 2018 URL: http://orgprints.org/35389/1/FiBL_Report_GEP-17-01-MYZECE.pdf
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Efficacy of Surround® WP against the European pear psyllid (Cacosylla pyri) in large-scale field trials Organic Eprints
Daniel, Claudia; Wyss, Eric.
Are pre-flowering applications of Surround® WP sufficient to keep the European pear psyllid (Cacopsylla pyri) below the economic threshold for the whole season?
Tipo: Report Palavras-chave: Crop health; Quality; Protection.
Ano: 2003 URL: http://orgprints.org/4866/1/Daniel%2DWyss%2D2003%2DEuropean_pear_psyllit.pdf
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Einatz entomopathogener Pilze gegen die Kirschfruchtfliege Rhagoletis cerasi – Erste Feldresultate Organic Eprints
Daniel, Claudia; Keller, Siegfried; Wyss, Eric.
Field efficacy of entomopathogenic fungi to control Rhagoletis cerasi. Two myco-insecticides, Naturalis-L (Beauveria bassiana) and PreFeRal®WG (Paecilomyces fumosoroseus), were applied against adult R. cerasi Loew (Diptera: Tephritidae) in two orchards in north-western Switzerland in summer 2006. Both products were able to cause mycosis on adult flies under field conditions. However, only Naturalis-L significantly reduced the number of damaged fruits (efficacy: 69-74%), whereas damaged fruits were not significantly reduced with PreFeRal (efficacy: 27%). For B. bassiana living fungal propagules were still detectable seven days after application while the fungal propagules of P. fumosoroseus remained only three days. A control of R. cerasi with...
Tipo: Journal paper Palavras-chave: Crop husbandry; Fruit and berries; Post harvest management and techniques.
Ano: 2008 URL: http://orgprints.org/20266/1/F_2008_02KifliFeldDgaae.pdf
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Einfluss von mineralischen Mitteln auf die Vinifizierung Organic Eprints
Daniel, Claudia; Schärer, Hans-Jakob; Cahenzli, Fabian.
Die Kirschessigfliege (Drosophila suzukii) wurde 2008 aus Südostasien nach Europa einge-schleppt und verursacht seitdem z.T. massive Ertragsausfälle. Sie befällt alle Weichobstarten, wie z.B. Beeren, Kirschen, Zwetschgen und Trauben. Auch viele wilde Pflanzen, wie z.B. Ho-lunder und Schneeball dienen als Wirtspflanzen. Der Hauptschaden entsteht durch den Larven-frass an den Früchten. Da der Generationszyklus sehr kurz ist und daher mehrere Generationen parallel auftreten, kommt es zu einem starken Befallsdruck im Spätsommer und Herbst. Da Trauben länger hängen als z.B. Beeren und die Lese erst im Herbst stattfindet, ist in Reben mit einem besonders hohen Befallsdruck zu rechnen. Aufgrund der Witterungsbedingungen wurden im Jahr 2014 erstmals starke...
Tipo: Report Palavras-chave: Crop health; Quality; Protection Viticulture.
Ano: 2016 URL: http://orgprints.org/30490/1/Vinifikation_Organic_Eprints.pdf
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Einfluss von mineralischen Mitteln gegen Drosophila suzukii auf die Vinifizierung Organic Eprints
Daniel, Claudia.
In einem Versuch wurden 2015 praxisübliche Mengen von Surround (Kaolin), Klinospray (Klinoptilolith)und Nekapur Löschkalk)dreimal vor der Ernte auf Reben appliziert, um die Trauben vor Drosophila suzukii zu schützen. Trotz des geringen Niederschlags zwischen der letzten Behandlung und der Ernte und trotz des Verzichts einer Vorklärung im Keller wurden kaum Unterschiede bei der Weinbereitung und Weinqualität beobachtet.
Tipo: Newspaper or magazine article Palavras-chave: Crop health; Quality; Protection.
Ano: 2016 URL: http://orgprints.org/32289/1/2016_Kaolin_DrosoZ%C3%BCrcherBauer.pdf
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Einfluss von stäubenden Substanzen auf die Vinifikation von Wein Organic Eprints
Daniel, Claudia; Matray, Silvia; Gallati, Philip; Tuchschmid, Andi.
Die Kirschessigfliege (Drosophila suzukii) wurde 2008 aus Südostasien nach Europa eingeschleppt und verursacht seitdem z.T. massive Ertragsausfälle. Aufgrund der Witterungsbedingungen wurden im Jahr 2014 erstmals starke Schäden am Wein festgestellt. Per Ausnahmebewilligung hat das BLW für das Jahr 2014 den Einsatz von Kaolin (Produkt Surround) bewilligt, jedoch mit dem Hinweis: „Die Auswirkungen einer Behandlung auf die Gärung der Maische aus behandelten Trauben wurde nicht untersucht.“ Viele Produzenten setzten im Jahr 2014 auch Kalkprodukte ein. Ein solcher Einsatz kann jedoch den pH-Wert anheben und somit einen Einfluss auf die Vinifikation und die Weinqualität haben. Das Ziel dieses Versuches ist es, den Einfluss von verschiedenen stäubenden Mitteln...
Tipo: Report Palavras-chave: Crop health; Quality; Protection Viticulture.
Ano: 2015 URL: http://orgprints.org/29158/1/Vinifikation_Bericht2014.pdf
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Einsatz von Gesteinsmehl gegen Rapsglanzkäfer Organic Eprints
Daniel, Claudia; Conder, Malgorzarta; Weidmann, Gilles.
Wird Raps vom Rapsglanzkäfer befallen, können erhebliche Ertragseinbussen die Folge sein. Dieser Praxistipp zeigt auf, unter welchen Bedingungen das Risiko eines Befalls zunimmt und wie das Schadensausmass bei Vorhandensein des Schädlings durch das Spritzen von Gesteinsmehl signifikant reduziert werden kann.
Tipo: Report Palavras-chave: Cereals; Pulses and oilseeds Crop health; Quality; Protection.
Ano: 2017 URL: http://orgprints.org/32758/1/Einsatz%20von%20Gesteinsmehl%20gegen%20Rapsglanzk%C3%A4fer.pdf
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Entomopathogenic fungi as a new strategy to control the European cherry fruit fly Rhagoletis cerasi Loew (Diptera: Tephritidae) Organic Eprints
Daniel, Claudia.
The European cherry fruit fly, Rhagoletis cerasi Loew (Diptera: Tephritidae), is a highly destructive pest of sweet cherries in Europe. Up to 100% of the fruit can be infested. Methods for controlling this pest are limited in organic agriculture as well as in integrated production, as the insecticide currently used (Dimethoate) is being challenged due to problems of ecotoxicity and residues. Alternative methods for cherry fruit fly management are therefore needed. The aim of this thesis was to develop a new control strategy for R. cerasi using entomopathogenic fungi. In a first step, the effects of six fungus isolates on the mortality of different life stages of R. cerasi were assessed in a series of laboratory experiments. All fungus isolates caused...
Tipo: Thesis Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2009 URL: http://orgprints.org/15613/1/DanielClaudia_2008-DissertationSummary.pdf
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Ernteresultate Bioraps 2011: Erträge durchschnittlich Organic Eprints
Daniel, Claudia; Bergmann, Stefanie.
Ernteresultate Bioraps 2011: Erträge durchschnittlich
Tipo: Newspaper or magazine article Palavras-chave: Crop husbandry Crop health; Quality; Protection.
Ano: 2011 URL: http://orgprints.org/20284/4/article1.pdf
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Essais de régulation du méligèthe du colza avec la poudre de roche Organic Eprints
Daniel, Claudia; Clerc, Maurice.
Gesteinsmehlbehandlungen senken den Befallsdruck mit Rapsglanzkäfern
Tipo: Newspaper or magazine article Palavras-chave: Crop health; Quality; Protection.
Ano: 2012 URL: http://orgprints.org/21688/1/2012_03_02_RapsAgri.pdf
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Evolution de la production et du marché : fruits traditionnels et variétés nouvelles issus de la culture biologique Organic Eprints
Häseli, Andi; Weibel, Franco; Tschabold, Jean-Luc; Suter, Francisco; Daniel, Claudia.
La culture biologique de fruits à pépins s’est fortement développée au cours de ces dernières années : les superficies actuellement plantées permettent d’obtenir des récoltes plus ou moins à la hauteur de la demande du marché. Moyennant quelques efforts, il devrait être possible d’augmenter encore cette production, à tous les niveaux, mais à un rythme ralenti.
Tipo: Book chapter Palavras-chave: Fruit and berries.
Ano: 2006 URL: http://orgprints.org/14782/1/haeseli%2Detal%2D2006%2Dtb%2D1416%2Darbo_bio.pdf
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Experiences of integrated management of European Cherry Fruit Fly (Rhagoletis cerasi) and how to utilize this knowledge for Sea Buckthorn Fly. Organic Eprints
Daniel, Claudia.
The genus Rhagoletis Loew includes about 65 known species distributed throughout Europe, Asia and America. Most species are oligophagous, attacking only a few closely related host plants. The European cherry fruit fly R. cerasi is the economically most important pest species in Europe. R. batava and R. alternata can also cause economic damage in Europe. In addition to these species, the American cherry fruit fly species R. cingulata, R. indifferens and R. fausta, as well as the apple maggot R. pomonella, the blueberry maggot R. mendax, and the walnut infesting species R. completa and R. suavis are pest insects of high economic importance. R. cingulata and R.completa were recently introduced to Europe and are currently spreading in Central Europe. A lot of...
Tipo: Conference paper, poster, etc. Palavras-chave: Fruit and berries Crop health; Quality; Protection.
Ano: 2014 URL: http://orgprints.org/28158/1/Daniel_RhagoletisControl_fulltext.pdf
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Felderhebungsblätter Bioobstbau Organic Eprints
Häseli, Andreas; Daniel, Claudia.
Die Felderhebungsblätter Bioobstbau enthalten eine Anleitung zur visuellen Kontrolle, vier Bestimmungsführer mit Abbildungen und zugehörigen Formularen zu vier Kulturstadien sowie Formulare für die Fallenkontrolle und die Pflanzenschutzaufzeichnungen.
Tipo: Other Palavras-chave: Fruit and berries Crop health; Quality; Protection.
Ano: 2012 URL: http://orgprints.org/25450/1/1031-felderhebungsblaetter.pdf
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Feldversuche mit Gesteinsmehl - Versuchsbericht Raps 2012 Organic Eprints
Daniel, Claudia.
Im Jahr 2012 wurden nochmals Grossversuche mit Gesteinsmehl auf 46 ha durchgeführt. Der Einsatz von Klinospray konnte den Befall mit Rapsglanzkäfern um durchschnittlich 30.8% reduzieren. Im Vergleich zu unbehandelten Kontrollparzellen wurde der Schotenansatz pro Quadratmeter durch die Klinospray-Behandlungen um durchschnittlich 13% erhöht. Der Einsatz von Surround erhöhte den Schotenansatz um durchschnittlich 28%, der Unterschied zur unbehandelten Kontrolle war jedoch aufgrund der geringen Wiederholungszahl nicht signifikant. Auf einigen konventionellen Feldern wurde Klinospray dem normalen Insektizidspritzplan zugesetzt. Dieser Zusatz von Klinospray erhöhte den Schotenansatz der reinen Insektizidvariante um 20%. Aufgrund der geringen Wiederholungszahl...
Tipo: Report Palavras-chave: Cereals; Pulses and oilseeds Crop health; Quality; Protection.
Ano: 2013 URL: http://orgprints.org/22330/1/RapsBericht2012_Feld.pdf
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Field applications of Beauveria bassiana to control the European cherry fruit fly Rhagoletis cerasi Organic Eprints
Daniel, Claudia; Wyss, Eric.
Field experiments with foliar applications of Beauveria bassiana ATCC 74040 (product Naturalis-L) were conducted to control the European cherry fruit fly Rhagoletis cerasi Loew (Diptera: Tephritidae), a major pest of cherries in Europe. Naturalis-L was applied at concentrations of 250 ml per 100 l in 7-day intervals during the flight period of R. cerasi. Flight activity monitored by yellow sticky traps was only slightly affected by treatments. Infection and mycosis of adult cherry fruit flies was shown to be possible under field conditions. Fruit infestation was assessed at harvest. The number of infested fruits was significantly reduced by 65% with foliar applications of Naturalis-L. These results were obtained from five experiments in 2 years with...
Tipo: Journal paper Palavras-chave: Fruit and berries Crop health; Quality; Protection.
Ano: 2010 URL: http://orgprints.org/16984/1/daniel_wyss%2D2009_PaperKifliFeld_JApplEntomol.pdf
Registros recuperados: 254
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