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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 on prevention of codling moth damage by long-term population control on large areas. Local codling moth (CM) populations were collected in autumn 2003 from three different orchards in the South of Germany; two of them having been treated with granulovirus of codling moth for many years and one since two years. In autumn 2004, in addition to the three locations from the previous year, specimens from populations in four other orchards with serious CM problems were collected. The susceptibility of the offsprings of the overwintering larvae to CpGV was investi-gated in the spring of the following year in bioassays on artificial diet and compared to a... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: "Organics" in general. |
| Ano: 2007 |
URL: http://orgprints.org/9723/1/9723_Fritsch_Poster.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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| 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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| Jehle, Johannes A.; Undorf-Spahn, Karin; Fritsch, Eva; Zebitz, Klaus P.W.; Kienzle, Jutta; Zimmer, Jürgen; Benduhn, Bastian; Brockamp, Leona. |
| Das Apfelwicklergranulovirus (Cydia pomonella Granulovirus, CpGV) ist ein effizientes biologisches Bekämpfungsmittel des Apfelwicklers (AW) mit großer Bedeutung im ökologischen und integrierten Kernobstbau. Im Jahr 2005 wurde erstmals in einzelnen Apfelanlagen in Deutschland eine Resistenz des Apfelwicklers gegenüber kommerziellen CpGV-Präparaten mit dem Isolat CpGV-M beobachtet. In der Folge wurde eine Strategie zur Regulierung des Apfelwicklers entwickelt, die einerseits auf frühes Monitoring auftretender Resistenzen, einen optimalen Einsatz und neue Isolate von CpGV, andererseits aber auf einer möglichst breiten Maßnahmendiversifizierung der Gesamtstrategie basieren sollte. Im Rahmen des Resistenzmanagements des Apfelwicklergranulovirus konnten die von... |
| Tipo: Report |
Palavras-chave: Fruit and berries Crop health; Quality; Protection. |
| Ano: 2014 |
URL: http://orgprints.org/32127/1/32127_09OE97_98_99_100_JKI_jehle_2017_apfelwickler.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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| Asser-Kaiser, Sabine; Fritsch, Eva; Undorf-Spahn, Karin; Kienzle, Jutta; Eberle, Karolin; Gund, Nadine; Reineke, Annette; Zebitz, Claus; Heckel, David; Jehle, Johannes. |
| Insect-specific baculoviruses are increasingly used as biocontrol agents of lepidopteran pests in agriculture and forestry, and thy have been previously regarded as robust to resistance development by the insects. However, in more than a dozen cases of field resistance of codling moth Cydia pomonella to commercially applied C. pomonella granulovirus (CpGV) in German orchards, resistance ratios exceed 1000. The rapid emergence of resistance is facilitated by sex-linkage and concentration dependant dominance of the major resistance gene and genetic uniformity of the virus. When the gene is fixed, resistance levels approach 100.000-fold. Our findings highlight the need for development of resistance management strategies for baculoviruses. (C)2007, American... |
| Tipo: Journal paper |
Palavras-chave: Crop health; Quality; Protection Fruit and berries. |
| Ano: 2007 |
URL: http://orgprints.org/15315/1/Asser%2DKaiser_et_al_2007.pdf |
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