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| Registros recuperados: 115 | |
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| Luka, Henryk; Pfiffner, Lukas; Wyss, Eric. |
| Amara ovata und A. similata, zwei im Adultstadium phytophage Laufkäferarten, wiesen in Rapskulturen im Vergleich zu Winterweizenflächen und ökologischen Ausgleichsflächen (Buntbrache und extensiven Wieslandstreifen) in der Nähe von Basel ein mit TRichterfallen gemessene, hohe Aktivitätsdichte auf. Handfänge und Beobachtungen auf fünf anderen Rapsfeldern in der Umgebung von Basel zeigten, dass Amara ovata und A. similata Schoten, Samen und Blüten der Rapskultur fressen. Aufgrund der nahen Verwandtschaft des Rapses mit anderen Brassicaceen nehmen wir an, dass Raps für A. ovata und A. similata eine bevorzugte Nahrungsquelle darstellt. Ob dadurch ein wirtschaftlicher Schaden entsteht, ist zurzeit noch nicht klar. Ein stärkerer Befall ist in der Nähe von... |
| Tipo: Journal paper |
Palavras-chave: Cereals; Pulses and oilseeds Biodiversity and ecosystem services Crop health; Quality; Protection. |
| Ano: 1998 |
URL: http://orgprints.org/20216/1/19_Luka_et_al_PCA_1998_Amara_Raps.pdf |
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| Wyss, Eric; Pfiffner, Lukas. |
| Conservation and enhancement of biodiversity are mentioned in the International Federation of Organic Agriculture Movements (IFOAM) standards and in all national guidelines as essential pillars for organic agriculture. Recent reviews show that organic agriculture enhances the number of species and the abundance of many taxa (plants, birds, mammals, earthworms, arthropods, soil microbes), compared with conventional agriculture. Considering the benefits for sustainability, a multi-criteria analysis shows that organic agriculture not only improves biodiversity but also has positive effects on soil (e.g., soil erosion, structure, biological activity), water (e.g., no pesticide residues) and climatic factors (e.g., air pollution). In organic horticulture,... |
| Tipo: Journal paper |
Palavras-chave: Vegetables; Biodiversity and ecosystem services; Fruit and berries. |
| Ano: 2008 |
URL: http://orgprints.org/17807/1/wyss-pfiffner-2008-actahort.pdf |
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| Daniel, Claudia; Wyss, Eric; Linder, Christian. |
| Autumn applications of sulphur – a new approach to control the pear leaf blister mite Eriophyes pyri. Abstract: The pear leaf blister mite can cause severe damage to pear leaves and young fruits in some regions. Due to hidden living inside leaf blisters, the mites are largely protected against the impact of plant protecting agents. Until now, treatments with mineral oil or rape oil in early spring, during the time when the mites leave their hibernation sites under the bud scales to invade the young leaves and blossoms, are the only possibility to control these mites in Swiss organic fruit growing. The aim of this study was to examine the effects of sulphur, mineral oil and Surround®WP applied after harvest during the time, when the mites leave their... |
| Tipo: Journal paper |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2004 |
URL: http://orgprints.org/6139/1/daniel%2D2004_04SchwefelPockenmilbeRSVAH.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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| Häseli, Andreas; Tamm, Lucius; Wyss, Eric. |
| Ochrana révy před plísní révovou a padlím révovým představuje i dnes, stejně jako dříve, v ekologickém vinohradnictví ten největší problém. Díky novým prostředkům ochrany rostlin však mohla být v posledních letech podstatně zvýšena jistota výnosu. I přesto však zůstává aplikace pre ventivních opatření, jako je aktivní péče o zdravou půdu, podpora užitečných organizmů a kvalitní provedení zelených prací předpokladem úspěšné ochrany révy vin né. Tato publikace představuje formou mnoha barevných ilustrací a návodů nejvýznamnější choroby a škůdce vinic a podává informace o jejich bionomii, jakož i preventivních a přímých ochranných opatřeních. V jednotlivých kapitolách jsou výstižně popsány jak prostředky, které dnes máme v ekologickém vinohradnictví k... |
| Tipo: Book |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2007 |
URL: http://orgprints.org/20520/1/biovino_nahled.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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| Registros recuperados: 115 | |
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