Control of apple scab by curative applications of biocontrol agents

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Datum
2008
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Mögel, Gudrun
Hinze, Malin
Volk, F.
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Eco-Fruit : proceedings to the 13 th international conference from February 18 th to February 20 th, 2008 at Staatliche Lehr- und Versuchsanstalt für Wein- und Obstbau Weinsberg, Germany. Weinsberg: Fördergemeinschaft Ökologischer Obstbau, 2008, pp. 62-67
Zusammenfassung

In organic apple growing protective applications with copper, sulphur or lime sulphur are used for apple scab control. Protective applications have to be repeated when new leaves unfold. The timing of protective sprays depends on the weather forecast. If forecasted infection conditions fail to appear, treatments were for nothing. With curative control agents available, the number of treatments could be reduced. In greenhouse trials we tested control agents for their protective and curative efficiency against apple scab after artificial inoculation of potted apple trees. Applications were done 2 hours before inoculation, 5 hours after inoculation on wet leaves, 5 hours after inoculation during simulated rainfall or 24 hours after inoculation on wet or dry leaves. The optimal time of application differed between the preparations tested. Vitisan and OmniProtect had their highest activity when sprayed curative 24 hours after inoculation. Combinations were found, which revealed a high efficiency against apple scab from 2h before to 24 hours after inoculation. In a field trial apple scab was effectively controlled by curative applications of OmniProtect.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
570 Biowissenschaften, Biologie
Schlagwörter
apple scab, Venturia inaequalis, curative treatment, Vitisan, OmniProtect
Konferenz
Eco-Fruit, 18. Feb. 2008 - 20. Feb. 2008, Staatliche Lehr- und Versuchsanstalt für Wein- und Obstbau Weinsberg, Germany
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Zitieren
ISO 690KUNZ, Stefan, Gudrun MÖGEL, Malin HINZE, F. VOLK, 2008. Control of apple scab by curative applications of biocontrol agents. Eco-Fruit. Staatliche Lehr- und Versuchsanstalt für Wein- und Obstbau Weinsberg, Germany, 18. Feb. 2008 - 20. Feb. 2008. In: Eco-Fruit : proceedings to the 13 th international conference from February 18 th to February 20 th, 2008 at Staatliche Lehr- und Versuchsanstalt für Wein- und Obstbau Weinsberg, Germany. Weinsberg: Fördergemeinschaft Ökologischer Obstbau, 2008, pp. 62-67
BibTex
@inproceedings{Kunz2008Contr-1280,
  year={2008},
  title={Control of apple scab by curative applications of biocontrol agents},
  publisher={Fördergemeinschaft Ökologischer Obstbau},
  address={Weinsberg},
  booktitle={Eco-Fruit : proceedings to the 13 th international conference from February 18 th to February 20 th, 2008 at Staatliche Lehr- und Versuchsanstalt für Wein- und Obstbau Weinsberg, Germany},
  pages={62--67},
  author={Kunz, Stefan and Mögel, Gudrun and Hinze, Malin and Volk, F.}
}
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