Lammert Bastiaans

Contact details:

Name: Dr Ir Lammert Bastiaans
Institute: Wageningen University and Research Centre
Department: Crop Systems Analysis
Address: CSA, Droevendaalsesteeg 1, 6708 PB Wageningen, the Netherlands
Mobile phone: –
Landline phone: +31 (0)317 484770

About Lammert:

I am an associate professor in the Crop and Weed Ecology Group of the Centre for Crop Systems Analysis (CSA) at Wageningen University (WU). My main research interest is in weed ecology, with an emphasis on crop-weed interactions and the influence of crop management practices on weed population dynamics. The rationale behind most of my research is the acquisition of quantitative insight that facilitates the design of effective and sustainable weed management systems. Modelling is used as an important research tool in most of these studies. My interest in plant-plant interaction and simulation modelling is also reflected in studies on the optimization of intercropping systems.

In 1993 I obtained my PhD-degree in Agricultural and Environmental Sciences (cum laude) at Wageningen University based on a study that combined experimentation and simulation modelling to quantitatively explain the impact of a fungal leaf infection on the production of a rice crop. This research at the Department of Theoretical Production Ecology was partly conducted in the Philippines in close collaboration with the International Rice Research Institute (IRRI). The ‘virtual lesion’-concept, developed in this study, has since then frequently been used to characterize the reduction in photosynthetic rate of host plants following infection by foliar pathogens.

After a position as Theme co-ordinator crop protection within the international project for collaborative research and technology transfer in rice production systems in South-east Asia (AB-DLO; IRRI), and post-doc positions at the Research Institute for Plant Protection (IPO-DLO) and the Department of Theoretical Production Ecology (TPE-WU), I was appointed as assistant professor within the newly founded Crop and Weed Ecology Group of Wageningen University (1998). I am teaching in a number of courses, particularly on agro-ecological subjects, like the ecology and management of weeds and intercropping. In addition, I supervise several MSc and PhD-students.

I am an active member of the Scientific Committee of the European Weed Research Society (EWRS) and chairman of the EWRS Working Group ‘Crop-Weed Interactions’. Apart from organizing WG-meetings and contributing to the organization of EWRS-Symposia, I initiated and co-organized thematic workshops on ‘Modelling Weed Population Dynamics’(2006) and ‘Perennial Weeds’ (2008). In addition, I am a Board member of the Netherlands Society of Plant Pathology (KNPV), an organisation that tries to simulate collaboration and communication among persons with an interest in crop protection.

Major research areas/ expertise: Cropping systems, parasitic weeds, weed management
Nationality: Dutch

In the PARASITE project:

Role in the project: Project leader and PhD-supervisor
Subproject: 1 – Biology and ecology, 2 – Management Strategies, 3 – Socio-economic impact, 4 – Crop protection systems
Project location: Netherlands, Tanzania, Benin and Cote d'Ivoir
Start of the project: –
Expected finish: –


  • Ryan, M.R., Mortensen D.A., Bastiaans, L., Teasdale,J.R., Mirsky, S.B., Curran, W.S., Seidel, R., Wilson, D.O. & Hepperly, P.R., 2010. Elucidating the apparent tolerance to weed competition in long-term organically managed systems. Weed Research 50: 25-36.
  • Kruidhof, H.M., Bastiaans, L., & Kropff, M.J., 2009. Cover crop residue management for optimizing weed control. Plant and Soil 318: 169-184.
  • Bastiaans, L., Paolini, R. & Baumann, D.T., 2008. Focus on ecological weed management: what is hindering adoption? Weed Research 48: 481-491.
  • Holst, N., Rasmussen, I.A. & Bastiaans, L., 2007. Field weed population dynamics: a review of approaches and applications. Weed Research 47: 1-14.
  • Bastiaans, L., D.L. Zhao, N. den Hollander, D.T. Baumann, M. Kruidhof & M.J. Kropff, 2007. Exploiting diversity to manage weeds in agro-ecosystems. In: J.H.J. Spiertz, P.C. Struik & H.H. van Laar (eds.), Scale and Complexity in Plant Systems Research, Gene-Plant-Crop Relations. Springer: p. 267-284.
  • Zhao, D.L., Atlin G.N., Bastiaans, L. & Spiertz, J.H.J., 2006. Cultivar Weed-Competitiveness in aerobic rice: heritability, correlated traits, and the potential for indirect selection in weed-free environments. Crop Science 46: 372-380.
  • Rodenburg, J., Bastiaans, L., Rattunde Weltzien, E. and Hess, D.E., 2005. How can field selection for Striga resistance and tolerance in sorghum be improved? Field Crops Research 93: 34-50.
  • Ast, A. van, Bastiaans, L. & Katile, S., 2005. Cultural control measures to diminish sorghum yield loss and parasite success under Striga hermonthica infestation. Crop Protection 24: 1023-1034.
  • Ittersum, M.K. van, Leffelaar, P.A., van Keulen, H., Kropff, M.J., Bastiaans, L. & Goudriaan, J., 2003. On approaches and application of the Wageningen crop models. European Journal of Agronomy 18: 201-234.
  • Bastiaans, L., Kropff, M.J., Goudriaan, J. & van Laar, H.H., 2000. Design of weed management systems with a reduced reliance on herbicides poses new challenges and prerequisites for modeling crop-weed interactions. Field Crops Research 67: 161-179.
  • Baumann, D., Kropff, M.J. & Bastiaans, L., 2000. Intercropping leeks to suppress weeds. Weed Research 40: 359-374.
  • Mortensen, D., L. Bastiaans & M. Sattin, 2000. The role of ecology in developing weed management systems: an outlook. Weed Research 40: 49-62.
  • Bastiaans, L., Kropff, M.J., Kempuchetty, N., Rajan, A. & Migo, T.R., 1997. Can simulation models help design rice cultivars that are more competitive against weeds? Field Crops Research 51: 101-111.
  • Bastiaans, L., 1991. Ratio between virtual and visual lesion size as a measure to describe reduction in leaf photosynthesis of rice due to leaf blast. Phytopathology 80: 611-615.

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