|
|
|
| Registros recuperados: 254 | |
|
|
| 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 |
| |
|
| |
|
|
| 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 |
| |
|
| |
|
|
| 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 |
| |
|
|
| 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 |
| |
|
| |
|
|
| 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 |
| |
|
|
| 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 |
| |
|
| |
|
|
| 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 |
| |
|
| |
|
|
| 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 |
| |
|
| |
|
| |
|
| |
|
|
| 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 |
| |
|
| |
|
|
| 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 |
| |
|
|
| 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 | |
|
|
|
