| Registro completo |
| Provedor de dados: |
Organic Eprints
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| País: |
Germany
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| Título: |
Kraut- und Knollenfäule im Kartoffelanbau - ist im ökologischen Anbau eine wirksame Bekämpfung ohne Kupfer möglich?
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| Autores: |
Dorn, Brigitte
Musa, Tomke
Krebs, Heinz
Fried, Padruot
Forrer, Hans-Rudolf
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| Data: |
2009
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| Ano: |
2009
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| Palavras-chave: |
Crop health
Quality
Protection
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| Resumo: |
In laboratory, growth chamber, micro-plot and small-plot field trials, 53 copper-free preparations (CFPs) were examined for their potential to control potato late blight (PLB) caused by Phytophthora infestans (PI). In-vitro, 43% of the CFP inhibited the germination of sporangia or the mycelial growth of the pathogen completely. In growth chamber trials, 21% of them reduced PI foliar blight of tomato seedlings by at least 80%. In contrast, in small-plot field trials with potatoes under practice like applications, none of the CFPs sufficiently controlled the disease. Even in micro-plot field trials with applications twice a week the efficacies did not exceed 60%. With in-vitro tests we showed that the reason for the insufficient performance of the CFPs was due to their lack of persistence and rainfastness. However, applications of copper fungicides with low rates according to the decision support system Bio-PhytoPRE resulted in a good control of late blight. We recommend using this strategy until CFPs are developed for practise application.
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| Tipo: |
Conference paper, poster, etc.
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| Idioma: |
deu
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| Identificador: |
http://orgprints.org/14095/1/Dorn_14095.pdf
Dorn, Brigitte; Musa, Tomke; Krebs, Heinz; Fried, Padruot and Forrer, Hans-Rudolf (2009) Kraut- und Knollenfäule im Kartoffelanbau - ist im ökologischen Anbau eine wirksame Bekämpfung ohne Kupfer möglich? Paper at: 10. Wissenschaftstagung Ökologischer Landbau, Zürich, 11.-13. Februar 2009.
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| Relação: |
http://orgprints.org/14095/
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| Formato: |
application/pdf
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