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24, chemin de Borde Rouge -Auzeville - CS52627 31326 Castanet Tolosan cedex - France

Last update: May 2021

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PVY Organization

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Walloon Agricultural Research Center

Farming System Section

The Potato Research Unit in the Farming System Section develops several applied research activities. The Laboratory of Virology is first of all a tool for the routine detection by DAS ELISA of the main potato viruses in the framework of the National Potato Seed Certification Programme. This laboratory possess the ISO 17025 accreditation and performs about 120000 tests / year. Our research activities related to the potato viruses topic are focused on the epidemiology of PVY with the aim of delivering to the growers the best informations to reduce the impact of the virus:
- effects of aphids population on the PVY dissemination in potato seeds fields (PVY pressure index),
 - spatio – temporal dissemination of PVY in potato fields,
 - fighting strategies against the PVY dissemination using insecticides and/or mineral oils,
 - the use of genetic ressources in breeding programs
More widely, our research activities concern several fields of the potato chain:
 - development and application of Decision Support Systems for a better management at the farm level (Late Blight, Aphids),
 - production techniques of initial material (minitubers, vitrotubers, rooted and acclimatized plantlets), production and selling of this material,
- new cultivars production and evaluation,
 - new evaluation techniques for the quality use of the potato, routine evaluation in the framework of breeding programs, certification of trade marks, National Catalog,...
Selected publications

  • Rolot J.L., Georges G., Deveux L. (2007) Productions de plants de pommes de terre : l’observation d’une fréquence d’infection plus importante par le virus Y de la pomme de terre (PVY, Potato Virus Y) en Wallonie en 2005 n’est-elle pas le signe d’une évolution des souches vers des pathotypes dont les symptômes sont plus difficilement identifiables ? Parasitica, vol 62 (1).
  • Rolot J.L. (2005) - Analyse des facteurs régulant la dissémination du virus Y de la pomme de terre (PVY) en vue de stratégies de lutte raisonnées. Dissertation originale présentée en vue de l’obtention du grade de Docteur en Sciences agronomiques et ingénierie biologique. Faculté des Sciences agronomiques de Gembloux.
  • Dupuis, B., Dubois, L., De Reycke, C., Rolot, J. L., Stilmant, D, Seutin, H., Laguesse, (2007). Multilocal field trials to evaluate alternative products to reduce or remove copper applications to control potato late blight in organic production systems, in PPO-Special Report edited by Huub Schepers, Ronald Spigt & Sjaak Meyberg, PPO Lelystad, submitted »
  • Rosu, R., Chiru, N, Rolot, J.L 2004 – Researches on genotype influence on potato microtuberization. In : Proceedings of EAPR Section meeting, Mamaïa, Romania, June 23-27. Anale Institutul de Certare-Dezvoltare Pentru Cartof si Sfleca de Zahar, vol XXXI.
  • Rolot, J.L. (2003). Generalities and brief characterization of the Aphids flights in Belgium. In : Final Report EXAMINE – Exploitation of Aphid Monotoring in Europe. European Union Concerted Action EVK2-CT-2000-2003.
  • Rolot J.L., Gerard G., Deveux L. (2001). Evaluation de l’efficacité d’une huile à base de colza pour lutter contre la diffusion du virus Y en culture de plants de pommes de terre. In : Pommes de terre – Recherche et vulgarisation en 2001 en Belgique. Centre Agricole de la Pomme de terre. PCA, FIWAP (eds) : 55-57.
  • Rolot JL, Seutin H, Michelante D. 2001. Contrôle de la transmission du virus Y en champs de plants de pommes de terre : validation de méthodes de lutte visant la réduction de l’emploi des insecticides. In : Pommes de terre – Recherche et vulgarisation en 2000 en Belgique. Centre Agricole de la Pomme de terre. PCA, FIWAP (eds) : 83-88.
  • Rolot, JL, Seutin H., Michelante D. (2001). Production de minitubercules de pommes de terre par hydroponie: évaluation d’un système combinant les techniques “NFT” et “Gravel Culture” pour deux types de solutions nutritives. Biotechnol. Agron. Soc. Environ. 2002 6 (3), 155-161.
  • Rolot JL., Seutin H. (1999) – Soilless production of potato minitubers using a hydroponic technique. Potato Research., 42 : 457-469.
  • Van de Laer G., Rolot JL., Dardenne P., Agneessens R. 2001. Qualité des pommes de terre : nouvelles méthodes d’évaluation calibrées sur l’analyse sensorielle. Biotechnol. Agron. Soc. Environ. 2001 5 (3) : 166-170.

 Head of the team: Jean-Louis Rolot
photo rolot_light
Centre wallon de Recherches agronomiques
Section Systèmes agricoles
100, rue du Serpont
B-6800 Libramont
Ph. (00 32) 61 23 10 10
Fax (00 32) 61 23 10 28

E-mail: Rolot()