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| Registros recuperados: 115 | |
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| 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 |
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| 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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| 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 pear sucker Cacopsylla pyri (L.) (Homoptera: Psyllidae) – one of the main pest insects in pear production – is commonly controlled by spraying broad-spectrum insecticides, which may have serious side-effects on beneficial arthropods. Recently, a new approach to fruit pest management has arisen in the form of processed-kaolin particle film technology (product name Surround® WP). The white kaolin particle film repels insects without killing them. Therefore, side effects on beneficial arthropods are expected to be low. This new approach triggered the present study to control C. pyri. In spring 2003 a small-plot field trial was conducted to assess the impact of pre-flowering kaolin treatments on the first generation of C. pyri. Multiple... |
| Tipo: Journal paper |
Palavras-chave: Crop health; Quality; Protection Fruit and berries. |
| Ano: 2006 |
URL: http://orgprints.org/13114/1/daniel%2Dwyss%2D2006%2DPsyllaDgaaE.pdf |
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| Daniel, Claudia; Linder, Christian; Wyss, Eric. |
| The pear leaf blister mite can cause severe damages to pear trees. By their hidden way of living inside the leaf blisters, the mites are protected from plant protection agents. Until now, oil treatments in early spring, when the mites leave their hibernation sites and invade the young leaves, are the only possibility to control these mites. Because of the low temperatures during this period (February/ March) the efficacy of pesticides is often not reliable. The aim of this study was to assess the effects of sulphur applied after harvest at the time, when mites are leaving the blisters and migrate to the hibernation sites. The treatments were applied shortly after harvest to benefit from the mild temperatures in September. Visual controls in... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Fruit and berries. |
| Ano: 2006 |
URL: http://orgprints.org/13770/1/ecofruit_12th_9.pdf |
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| Wyss, Eric; Daniel, Claudia. |
| 1.Wirkung U-förmig aufgestellter Insektenzäune gegen die Möhrenfliege Psila rosae im biologischen Möhrenanbau 2.Wirkung verschiedenartiger Abschirmungen mit Insektenzäunen gegen die Kohldrehherzgallmücke Contarinia nasturtii im biologischen Broccolianbau 3.Wirkung eines Insektenzauns gegen den Einflug der Zwergzikaden Eupterix atropunctata und Emelyanoviana mollicula in biologische Salbei- und Oreganokulturen 4.Nebenwirkung vertikaler Insektenzäune auf diverse Nichtziel-Insektengruppen 5.Wirkung eines Insektenzauns gegen den Einflug der Lauchminierfliege Napomyza gymnostoma im biologischen Lauchanbau 6.Wirkung eines Insektenzauns gegen den Einflug der Kleinen Kohlfliege Delia brassicae im biologischen Rettichanbau Fragestellung: Wirksamkeit... |
| Tipo: Report |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2004 |
URL: http://orgprints.org/5103/1/Daniel%2D2004%2DMoehrenfliege.pdf |
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| 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 the best... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Fruit and berries. |
| Ano: 2004 |
URL: http://orgprints.org/2580/1/daniel%2D2004%2DVortragBirnenblattsaugerWeinsberg.pdf |
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| Wyss, Eric; Daniel, Claudia. |
| Vertikale Netze haben Vorteile gegenüber Kulturschutznetzen: (1) sie liegen nicht auf der Kultur auf, (2) beeinflussen das Mikroklima kaum und (3) der Arbeitsaufwand, um die Netze für Durchfahrten (z.B. Hacken) zu öffnen, ist geringer. Die Ergebnisse müssen bestätigt, sowie die Anwendung auf weitere Schadorganismen (Möhrenfliege, Erdflöhe) ausgedehnt werden. Das Produkt «Audienz» weist, frühzeitig appliziert, eine genügende Wirkung gegen C. nasturtii auf. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Vegetables Crop health; Quality; Protection. |
| Ano: 2003 |
URL: http://orgprints.org/2606/1/wyss%2D2003%2Dposter%2Dkohldrehherz%2Din%2DHalle.pdf |
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| Schied, Johannes; Leimgruber, Andrea; Willareth, Martin; Nagel, Peter; Pfiffner, Lukas; Luka, Henryk; Wyss, Eric. |
| Within this project we assess whether wildflower strips and companion plants increase the control of cabbage pests Plutella xylostella L. (Lepidoptera: Plutellidae), Mamestra brassicae L. (Lepidoptera: Noctuidae) and Pieris rapae L. (Lepidoptera: Pieridae) by (1) naturally occurring parasitoids and predators and (2) mass‐releasedn Trichogramma brassciae (Bezdenko) (Hymenoptera: Trichogrammatidae) parasitoids. Two organic cabbage fields were used for this study: adjacent to each field a wildflower strip was sown and companion plants (Centaurea cyanus L. (Asteraceae)) intermixed within the crop. Within each field ~15,000 M. brassicae eggs were placed out to determine the parasitism rates by mass‐released T. brassicae and to assess the levels of egg... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Vegetables; Biodiversity and ecosystem services. |
| Ano: 2009 |
URL: http://orgprints.org/18168/1/schied-etal-2009-biological-control.pdf |
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| Registros recuperados: 115 | |
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