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| Registros recuperados: 12 | |
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| Speiser, B.; Tamm, L.; Amsler, T.; Lambion, J.; Bertrand, C.; Hermansen, A.; Ruissen, M. A.; Haaland, P.; Zarb, J.; Santos, J.; Shotton, P.; Wilcockson, S.; Juntharathep, P.; Ghorbani, R.; Leifert, C.. |
| Late blight of potatoes, caused by Phytophthora infestans, is particularly difficult to prevent or control in organic agriculture. In this study, the host resistance of selected varieties to foliar and tuber blight and their yield under organic growing conditions were assessed in trials carried out in four countries (Switzerland, France, England and Norway) in 2001 and 2002. The objective was to identify new, more resistant varieties which might replace some of the more susceptible varieties which are currently grown in organic agriculture. In each country, five test varieties were compared with two reference varieties, identical for all sites, and with two locally popular varieties. In addition, the effect of copper fungicides was assessed for all... |
| Tipo: Journal paper |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2006 |
URL: http://orgprints.org/8358/1/Speiser_etal_2006_late_blight.pdf |
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| Speiser, B.; Blake, F.; Micheloni, C.; Stopes, C.; Andersen, M.; Baker, B.; Bywater, S.; Canali, S.; Eriksen, R. Ø.; Gonzalvez, V.; Hozzank, A.; Jespersen, L. M.; Jørgensen, L. N.; Kelderer, M.; Kleeberg, H.; Koopmans, C.; Kromp, B.; Manstretta, M.; Maurer da Costa, MC., A.. |
| This CD contains criteria for the evaluation of plant protection products, fertilizers and soil conditioners to be used in organic agriculture. These ideas were developed in the course of the European Union Concerted Action project «ORGANIC INPUTS EVALUATION» (QLK5-CT-2002-02565). For more information visit the project website www.organicinputs.org. The editors gratefully acknowledge financial support from the Commission of the European Communities, under Key Action 5 of the Fifth Framework Programme for Research and Technological Development (QLK5-CT-2002-02565 «ORGANIC INPUTS EVALUATION») and co-funding by the Swiss Federal Office for Education and Science (BBW 02.0113). |
| Tipo: Other |
Palavras-chave: Crop health; Quality; Protection Regulation Quality and evaluation of inputs. |
| Ano: 2005 |
URL: http://orgprints.org/8428/1/speiser%2Detal%2D2005%2DCD_Organic%2DInputs%2DBook%235F06%2D1.pdf |
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| Speiser, B.; Blake, F.; Micheloni, C.; Stopes, C.; Andersen, M.; Baker, B.; Bywater, S.; Canali, S.; Eriksen, R. Ø.; Gonzalvez, V.; Hozzank, A.; Jespersen, L. M.; Jørgensen, L. N.; Kelderer, M.; Kleeberg, H.; Koopmans, C.; Kromp, B.; Manstretta, M.; Maurer da Costa, A.; Monnier, MC.; Pauler, A.; Schmid, O.; Schreyer, A.; Slabe, A.; Tamm, L.; Trapman, M.; von Fragstein, P.. |
| This volume contains proposals for criteria for evaluation of plant protection products, fertilisers and soil conditioners1 to be used in organic agriculture. These ideas were developed in the course of the European Union (EU) Concerted Action project ‘ORGANIC INPUTS EVALUATION’ (QLK5-CT-2002-02565). For more information on this project see the end of this volume or visit the project website www.organicinputs.org. The documents in this volume are proposals elaborated by the project consortium and external experts. They were discussed with a broader audience at a public conference held in Brussels on October 13, 2005, and have been amended accordingly. Our proposals also include a “criteria matrix”, which is in Microsoft Excel format, and therefore stands... |
| Tipo: Report |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2005 |
URL: http://orgprints.org/8551/1/Speiser_etal_2005%2Da%2Dnew%2Dsystem_finalreport.pdf |
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| Speiser, B.; Tamm, L.; Schmid, O.. |
| Organic farmers may only use those plant protection products which are listed in Annex II B of the ‘Organic Regulation’ 2092/91 and also registered for use at national level. At present, new compounds may only be listed in Reg. 2092/91, if they do not come into direct contact with the crop (although in perennial crops, contact outside the growing season of the edible parts is possible), which is a major obstacle for progress. The EU-funded ORGANIC INPUTS EVALUATION project aims at making Reg. 2092/91 more flexible with regard to new products, while safeguarding the principles of organic farming. Registra-tion under the ‘Pesticide Directive’ 91/414 represents a considerable financial hurdle. The REBECA project will propose registration requirements which... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2006 |
URL: http://orgprints.org/7637/1/Speiser_Tamm_Schmid_2006.pdf |
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| Flier, W. G.; Kroon, L. P. N. M.; Hermansen, A.; van Raaij, H. M. G.; Speiser, B.; Tamm, L.; Fuchs, J. G.; Lambion, J.; Razzaghian, J.; Andrivon, D.; Wilcockson, S.; Leifert, C.. |
| Genetic variation and pathogenicity of Phytophthora infestans isolates collected from organic potato crops of the susceptible cv. Bintje and the moderately resistant cv. Santé were assessed in France, Norway, and the United Kingdom in 2001 and in Switzerland in 2001 and 2002. Population structures differed considerably between the four P. infestans populations. Those from France, Switzerland and the UK were mainly clonal populations showing restricted levels of genetic diversity, whilst those from Norway were mixed A1 and A2 mating type populations with high levels of genetic diversity, suggesting periodical sexual reproduction. Isolates collected from cv. Bintje were on average more aggressive than or comparable to isolates from cv. Santé. Race complexity... |
| Tipo: Journal paper |
Palavras-chave: Crop health; Quality; Protection Root crops. |
| Ano: 2007 |
URL: http://orgprints.org/11106/1/speiser%2Detal%2D2007%2Dplant_pathology_56.pdf |
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| Tamm, L.; Smit, A.B.; Hospers, M.; Janssens, S.R.M.; Buurma, J.S.; Molgaard, J.-P.; Laerke, P.E.; Hansen, H.H.; Hermans, A.; Boedker, L.; Bertrand, C.; Lambion, J.; Finckh, M.R.; Schüler, Chr.; Lammerts van Bueren, E.; Ruissen, T.; Nielsen, B.J.; Solberg, S.; Speiser, B.; Wolfe, M.S.; Phillips, S.; Wilcoxon, S.J.; Leifert, C.. |
| In Europe, late blight, caused by Phytophthora infestans, is the most devastating disease affecting organic (and conventional) potato production. Under suitable environmental conditions the disease can spread rapidly and it can cause complete crop loss. The extent of damage due to late blight depends on several factors: in organic production systems these factors include climate, choice of variety, soil management and use of crop protection agents such as copper. Therefore, the extent of economic damage varies between European regions. Council Regulation (EEC) No 2092/91, amended by Commission Regulation (EC) No 473/2002 of 15 March 2002 regulates the use of copper in organic agriculture. Copper has been the single most important control agent in... |
| Tipo: Book |
Palavras-chave: Crop health; Quality; Protection Root crops. |
| Ano: 2004 |
URL: http://orgprints.org/2936/1/tamm%2Det%2Dal%2D2004%2Dblight%2Dmop%2Doe.pdf |
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| Speiser, B.; Tamm, L.; Bale, J.; Fjelsted, A.; Hokkanen, H.; Menzler-Hokkanen, I.; Kuhlmann, U.; Strasser, H.; Hauschild, R.; Strauch, O.; Ehlers, R.U.. |
| The legal regulation of plant protection products (Dir. 91/414/ EEC) is a bottleneck in the market introduction of new microbial biocontrol agents, plant extracts and pheromones. In contrast, invertebrate biocontrol agents (“beneficials”) are not registered at EU level. The EU-funded project REBECA suggested improvements to accelerate the regulation process and make it more cost-effective, without compromises to the level of safety. Representatives of all stakeholder groups participated in the REBECA workshops. The EU Commission and Member States are encouraged to improve the registration of biocontrol organisms, plant extracts and semiochemicals at EU and/or national level. The full proposals can be found at www.rebeca-net.de. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2008 |
URL: http://orgprints.org/11518/1/speiser%2Detal%2D2008%2Disofar2008%2DPoster%2DRebeca.pdf |
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| Tamm, L.; Smit, B.; Hospers, M.; Jannsens, B.; Burma, J.; Mølgaard, J.P.; Lærke, P.E.; Hansen, H.H.; Bertrand, C.; Lambion, J.; Finckh, M.; Schüler, C.; Lammerts van Bueren, E.; Ruissen, T.; Solberg, S.; Speiser, B.; S., Philip; M., Wolfe; Leifert, C. |
| Problemstellung/Ziele Die Kraut- und Knollenfäule (Phytophthora infestans) ist die Krankheit, die im biologischen (aber auch konventionellen) Kartoffelanbau in Europa die größten Probleme verursacht. Unter günstigen klimatischen Bedingungen breitet sich die Krankheit sehr rasch aus und kann große Ertragsausfälle verursachen. Innerhalb von Europa variiert der durch P. infestans verursachte wirtschaftliche Schaden stark zwischen den Regionen. Dies hängt von verschiedenen Faktoren ab, aber in biologisch bewirtschafteten Anbausystemen immt man an, dass die klimatischen Bedingungen, die verwendeten Sorten sowie die agronomischen Maßnahmen wie Bodenbearbeitung oder die Verwendung von Pflanzenschutzmitteln eine wichtige Rolle spielen. Die Reduktion oder das... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Root crops Crop health; Quality; Protection. |
| Ano: 2003 |
URL: http://orgprints.org/1918/1/tamm%2Det%2Dal%2D2003%2Dbio%2Dartoffel%2Deuropa%2Dinventar.pdf |
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| Tamm, L.; Smit, A. B.; Hospers, M.; Janssens, S.R.M.; Buurma, J.S.; Molgaard, J.-P.; Laerke, P.E.; Hansen, H. H.; Hermans, A.; Bodker, L.; Bertand, C.; Lambion, J.; Finckh, M.R.; Schüler, Chr.; Lammerts van Bueren, E.; Ruissen, T.; Nielsen, B. J.; Solberg, S.; Speiser, B.; Wolfe, M. S.; Phillips, S.; Wilcoxon, S. J.; Leifert, C.. |
| In Europe, late blight, caused by Phytophthora infestans, is the most devastating disease affecting organic (and conventional) potato production. Under suitable environmental conditions the disease can spread rapidly and it can cause complete crop loss. The extent of damage due to late blight depends on several factors: in organic production systems these factors include climate, choice of variety, soil management and use of crop protection agents such as copper. Therefore, the extent of economic damage varies between European regions. This report presents the results of a detailed survey that has been conducted in 7 European countries in the year 2001: (i) statistics on yields, farm gate prices, and production techniques, (ii) an analysis offarmer... |
| Tipo: Report |
Palavras-chave: Farm economics; Root crops. |
| Ano: 2004 |
URL: http://orgprints.org/25358/1/1340-late-blight.pdf |
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| Registros recuperados: 12 | |
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