|
|
|
|
|
| Bengtsson, M.; Heijne, B.; Jong, P.F. de; Jørgensen, H.J.L.; Paaske, K.; Pedersen, H.L.; Trapman, M.; Wulff, E.; Hockenhull, J.. |
| Apple scab (Venturia inaequalis (Cke.) Wint.) causes serious losses in quality and yield of organically as well as conventionally grown apples. Organic apple growers are highly dependent on the use of sulphur, lime sulphur and copper fungicides to control apple scab. Whereas only elemental sulphur is permitted for scab control in organic apple production in Denmark, and in addition lime sulphur in The Netherlands, copper fungicides are used in organic production in many European countries. However, the use of copper fungicides in the EU is now being phased out (EU Council Regulation (EEC) No. 2092/91) and alternative fungicides for control of apple scab and other diseases in other crops are increasingly needed. As part of the EU project REPCO (Replacement... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2006 |
URL: http://orgprints.org/9987/1/9987.pdf |
| |
|
|
| 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 |
| |
|
|
| Trapman, M.. |
| In small plot trials, performed by several institutes in the past years, potassium bicarbonate proved to be a promising alternative to the use of copper for the control of apple scab in organic orchards. Feasibility, effectiveness, consequences, and side effects of the replacement of copper by bicarbonate under practical conditions are largely unknown. In 2007 Five Dutch organic apple growers compared a bicarbonate based scab management strategy with their standard spray program. The use of 5 kg potassium bicarbonate + 2 kg. wettable sulphur shortly before rain or during infection development, was the core of the strategy. It was concluded that the control of apple scab with the potassium bicarbonate strategy was as effective as the standard spray... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Fruit and berries. |
| Ano: 2008 |
URL: http://orgprints.org/13646/1/068%2D075.pdf |
| |
|
|
| Trapman, M.; Helsen, H.; Polfliet, M.. |
| In 2004 RIMpro-Cydia was developed as a dynamic population model that simulates the within-year biology of a local codling moth population. The model is meant to be used by growers and advisors to optimize the control of codling moth populations in organic and integrated managed orchards. The model is based on literature data and unpublished research data. Fractional boxcar trains are used to mimic the dispersion in the developmental processes. The model is run in real time on the data input of local weather stations, starting on 1 January. The output of the model was compared with the results of field observations in three years in an untreated orchard. In the years 2005 to 2007 the progress in egg deposition as predicted by the model was in... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Fruit and berries. |
| Ano: 2008 |
URL: http://orgprints.org/13703/1/247%2D251.pdf |
| |
|
|
| Heijne, B.; Jong, P.F. de; Köhl, J.; Speksnijder, A.G.C.L.; Hockenhull, J.; Bengtsson, M.; Lindhard Pedersen, H.; Paaske, K.; Eiben, U.; Tamm, L.; Trapman, M.. |
| Improved prevention and control of apple scab caused by Venturia inaequalis is aimed at without the use of copper containing products in the Repco-project. Substantial progress is made in selection of potential products against summer epidemics. A patent application is made for E73. New effective biocontrol agents are selected to reduce inoculum during winter. The product potassium bicarbonate has shown good efficacy and Repco contributes to the registration of this product in Europe. Earthworms tended to be stimulated to consume apple leaves treated with amino acids or beetpulp, especially when applied fresh under controlled environmental condi-tons. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2006 |
URL: http://orgprints.org/7781/1/applescab%2DBHeijne.pdf |
| |
|
|
|
