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| Fritsch, Eva; Undorf-Spahn, Karin; Kienzle, Jutta; Zebitz, Claus P.W.; Huber, Jürg. |
| This study is part of a BMELV (German Federal Ministry for, Food, Agriculture and Consumer Protection) project for prevention of codling moth damage by long-term population control in large areas. Specimens from local codling moth populations were collected in fall 2003 from three different orchards in the South of Germany; two of them having been treated with granulovirus of codling moth (CpGV Madex 2 and/or Gran-upom) over many years (Lake Constance II and South Baden) and one since two years (Lake Constance I). In autumn 2004, specimens from populations in four other orchards with serious CM problems were col-lected to investigate whether more populations were involved in that region. Furthermore, the population Lake Constance I and South Baden were... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Fruit and berries. |
| Ano: 2006 |
URL: http://orgprints.org/8784/1/ecofruit_12th_1.pdf |
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| Kienzle, Jutta; Schulz, Christof; Zebitz, Claus P.W.; Huber, Juerg. |
| In 2000 and 2001, in a field trial, the persistence of the biological effect of codling moth granulovirus (CpGV) was investigated. With a single treatment at full concentration of CpGV (MADEX 3, 100 ml/ha) a considerable reduction of CM population was achieved over the whole vegetation period. This may indicate that over a considerable period of time after a treatment a biological effect of CpGV sufficient for an increased mortality of the larvae was present in the orchard. However, the onset of mortality was not fast enough to protect the fruit from damage. Further research has to be done to gain more experience in handling this effect. It could be very important for the reduction of the number of treatments in organic apple growing. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Fruit and berries. |
| Ano: 2002 |
URL: http://orgprints.org/14625/1/kienzle_187.pdf |
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| Fritsch, Eva; Undorf-Spahn, Karin; Kienzle, Jutta; Zebitz, Claus P.W.; Huber, Jürg. |
| This study is part of a BMELV (German Federal Ministry for, Food, Agriculture and Consumer Protection) project for prevention of codling moth damage by long-term population control in large areas. Specimens from local codling moth populations were collected in fall 2003 from three different orchards in the South of Germany; two of them having been treated with granulovirus of codling moth (CpGV Madex 2 and/or Granupom) over many years (Lake Constance II and South Baden) and one since two years (Lake Constance I). In autumn 2004, specimens from populations in four other orchards with serious CM problems were collected to investigate whether more populations were involved in that region. Furthermore, the population Lake Constance I and South Baden... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Fruit and berries. |
| Ano: 2006 |
URL: http://orgprints.org/13752/1/ecofruit_12th_1.pdf |
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| Jehle, Johannes A.; Asser-Kaiser, Sabine; Fritsch, Eva; Gund, Nadine A.; Heckel, David; Huber, Jürg; Kienzle, Jutta; Reineke, Annette; Schulze-Bopp, Stefanie; Undorf-Spahn, Karin; Zebitz, Claus P.W.. |
| Das Apfelwicklergranulovirus (CpGV) ist effizientes biologisches Bekämpfungsmittel des Apfelwicklers mit großer Bedeutung im ökologischen und integrierten Kernobstbau. 2005 wurde erstmals eine Resistenz gegen CpGV in einzelnen Anlagen beobachtet. Um geeignete Hilfestellungen für den Obstbau zu entwickeln, wurden verschiedene Aspekte der CpGV-Resistenz aufgeklärt: 1. Bisher wurden mehr als 40 Apfelwicklerpopulationen in Europa mit CpGV-Resistenz gefunden. Sie kommen in Deutschland (26), Frankreich (2), Italien (6), Österreich (2), Schweiz (3), Niederlande (3) und Tschechien (1) vor. Vermutlich handelt es sich in allen Fällen um denselben Resistenztyp. 2. Die Resistenz wird durch einen ungewöhnlichen Vererbungsgang (einfaktoriell, Geschlechtschromosomal... |
| Tipo: Report |
Palavras-chave: Fruit and berries Crop health; Quality; Protection. |
| Ano: 2010 |
URL: http://orgprints.org/18236/1/18236%2D05OE023%2Ddlr_uni%2Dhohenheim%2Djehle%2D2010%2Dapfelwicklergranulovirus.pdf |
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| Zebitz, Claus P.W.; Kienzle, Jutta; Kopp, Barbara. |
| Der Kleine Fruchtwickler Grapholita lobarzewskii Rag. hat sich zu einem wichtigen Schädling in der Bodenseeregion entwickelt. Um den betroffenen Betriebe Perspektiven aufzuzeigen, sollte untersucht werden, ob von den für den Öko-Obstbau zugelassenen potentiell gegen Wicklerarten wirksamen Insektiziden ein Effekt zu erwarten ist. Im Hinblick auf die aktuelle Situation ohne zugelassene Regulierungsmethode waren hier auch relativ geringe Wirkungsgrade von Interesse. Auf der Basis der hier erzielten Ergebnisse kann davon ausgegangen werden, daß mit Aufwandmengen an Quassiaextrakt von ungefähr 3 g/ha und mKh Quassin und einer Applikation im Normalfall Wirkungsgrade bis zu 60 % erzielt werden können. Eine Zugabe von Trifolio-T/S forte als Formulierungshilfe und... |
| Tipo: Report |
Palavras-chave: Crop health; Quality; Protection Fruit and berries. |
| Ano: 2006 |
URL: http://orgprints.org/15705/1/15705%2D03OE524_3%2Duni%2Dhohenheim%2Dzebitz%2D2006%2Dfruchtwickler.pdf |
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| Kienzle, Jutta; Küpp, Barbara; Schlüter, Dietmar; Zebitz, Claus P.W.. |
| Planting trees produced in organic nurseries, more and more is a prerequisite in organic production. Thus, availability 01 young trees Irom organic production in good quality and at a manageable price is required. A project Irom the "Arbeitsgemeinschaft Oekologischer Baumschulen", lunded by the Federal Ministery 01 Food, Agriculture and Forestry is locussed on the development 01 lirst approaches to improve the technique 01 production in organic apple nursery. The project is presented, main problems in production and lirst approaches lor solutions are discussed. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Fruit and berries. |
| Ano: 2002 |
URL: http://orgprints.org/14630/1/kienzle_209.pdf |
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