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| Registros recuperados: 254 | |
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| Schmid, Andi; Daniel, Claudia; Weibel, Franco. |
| Damage of leaf spot, caused by Mycosphaerella fragariae and gray mold also called Botrytis fruit rot, caused by Botrytis cinerea, average fruit weight and yield were evaluated with regard to cultural methods over two years. Leaf spot damage decreased significantly by around 90 % due to leaf sanitation (removal of dead and leaf spot infected leaves in early spring) and by 50 % due to plantation in a one-row-system instead of a two-row-system. When all leaves including the healthy green ones were removed in early spring average fruit weight decreased significantly by 10 %. Fruit sanitation - the third treatment – did not influence any of the measured parameters. Neither leaf sanitation nor fruit sanitation (removal of damaged fruits during harvest) reduced... |
| Tipo: Journal paper |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2005 |
URL: http://orgprints.org/6135/1/Daniel%2D2005%2Dstrawberries.pdf |
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| Daniel, Claudia; Wyss, Eric. |
| The European cherry fruit fly (Rhagoletis cerasi) is the only pest insect which makes a insecticide treatment of cherry fruit necessary. With regard of residue free cherries a biocontrol method for R. cerasi by soil applications seems attractive. However, soil treatments can only be effective if the migration of flies is low. In order to examine the potential of soil treatments and to understand the dispersal behaviour of R. cerasi in orchards, experiments using nettings to cover the soil were conducted. The experiments were arranged in commercial, organically managed orchards. The nettings reduced fruit infestation by 90%. In addition, it was shown that the flies move only very short distances (less than 5 m) within orchards. Thus, soil treatments... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2009 |
URL: http://orgprints.org/13967/1/Daniel_13967.pdf |
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| 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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| Daniel, Claudia; Häseli, Andreas. |
| Der Erfolg des Naturalis-Einsatzes zur Regulierung der Kirschenfliege wurde im Jahr 2009 auf sieben Praxisbetrieben begleitet. Auf drei Betrieben wurden befriedigende Resultate erzielt. Bei zwei Betrieben ist die ungenügende Wirkung auf klare Anwendungsfehler zurückzuführen. Die schlechten Resultate auf zwei weiteren Betrieb sind im Moment nicht abschliessend begründbar. Die Situation auf diesen Betrieben sollte im nächsten Jahr besser überwacht werden. Hauptfehlerquellen waren die extakte Bestimmung des Flugbeginns (Gelbfallen häufig zu spät oder gar nicht montiert) und die zu langen Abstände zwischen den Spritzungen, sowie zwischen der letzten Spritzung und der Ernte. |
| Tipo: Report |
Palavras-chave: Crop husbandry Crop health; Quality; Protection. |
| Ano: 2009 |
URL: http://orgprints.org/20283/4/Naturalis.pdf |
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| Wyss, Eric; Daniel, Claudia. |
| Viele wichtige Gemüseschädlinge, wie zum Beispiel die Möhrenfliege, die Kleine Kohlfliege und die Kohldrehherzgallmücke, sind ausgesprochene Tiefflieger, das heisst sie bewegen sich in oder nur knapp über der Vegetation fort. Mit vertikal stehenden Netzen, so genannten Insektenzäunen, können diese Schädlinge am Einflug in die Kultur gehindert werden. Als wichtigste Schlussfolgerung aus den Versuchen in den Jahren 2002 und 2003 lässt sich sagen, dass die Insektenzäune gegenüber den bekannten Kulturschutznetzen entscheidende Vorteile bieten: (1) Kein Aufliegen der Netze auf der Kultur. (2) Keine Beeinflussung des Mikroklimas und damit weniger Probleme mit Krankheiten. (3) Weniger Aufwand durch einfacheres Öffnen der Zäune an den Stirnseiten der Felder bei... |
| Tipo: Journal paper |
Palavras-chave: Vegetables Crop health; Quality; Protection. |
| Ano: 2004 |
URL: http://orgprints.org/2579/1/wyss%2D2004%2DInsektennetze%2DBioaktuell.pdf |
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| Wyss, Eric; Daniel, Claudia. |
| Abstract: The effect of exclusion fences on the colonization of broccoli and kohlrabi by the Swede midge, Contarinia nasturtii (Diptera: Cecidomyiidae). The Swede midge Contarinia nasturtii (Diptera: Cecidomyiidae) is an important and wide spread pest in Europe. In Swiss organic vegetable production only the expensive product “Audienz“ (active matter: Spinosad) is permitted. In addition, netting the entire crop surface can exclude the Swede midges from crops, but it has a negative influence on the microclimatic conditions and the labour and capital cost are often too high. Since it is known, that several vegetable key pest species spread within the crop or only a few centimetres above it, the use of vertical exclusion fences has been developed in Canada.... |
| Tipo: Book chapter |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2004 |
URL: http://orgprints.org/6137/1/Daniel%2D_2004%2DDGaaE%2DKohldrehherzgallmuecke.pdf |
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| Daniel, Claudia; Koller, Martin; Wyss, Eric. |
| Aphids and leafhoppers can cause heavy damage to sweet pepper (Capsicum annuum) and tomato (Solanum lycopersicum). Neem-Azal T/S was therefore evaluated in greenhouse experiments for leafhopper and aphid control. In 2005, five organic greenhouse compartments were treated with Neem-Azal T/S (0.2%, 1000-1500 L water ha-1; two treatments on tomato; three treatments on sweet pepper) for control of leafhoppers; four greenhouse compartments were left as untreated controls. Leafhopper flight activity was monitored using yellow sticky traps. Leaf damage was estimated by evaluating the fifth leaf from the top of the plant on 100 plants per plot. Flight activity was reduced by 80% (Abbott’s formula; 11-20 days after the 2nd treatment) to 93% (60-75 days after last... |
| Tipo: Journal paper |
Palavras-chave: Crop husbandry Vegetables Crop health; Quality; Protection. |
| Ano: 2014 |
URL: http://orgprints.org/26952/1/2014_NeemLeafhopperActahort.pdf |
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| Kuske, Stefan; Daniel, Claudia; Sarraquigne, J.-P.; Jermini, M.; Conedera, M.; Peters, A.; Grunder, J. M.. |
| Survival of pest in micro-plot trials (container studies) or field plot trials was monitored after exposure to commercially used EPN strains. Experimental plots were artificially infested with pest larvae that naturally burrowed into the soil for diapause. Either larval mortality or adult emergence, was assessed to estimate the control effect of the EPN treatment. Here we present preliminary results from three ongoing projects. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2005 |
URL: http://orgprints.org/5028/1/Daniel%2D2005%2DPoster%2DNematoden.pdf |
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| Registros recuperados: 254 | |
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