• Open Access

Scientific Opinion on the annual Post-Market Environmental Monitoring(PMEM) report from Monsanto Europe S.A. on the cultivation of genetically modified maize MON810 in 2009


  • EFSA Panel on Genetically Modified Organisms (GMO)

  • Panel members: Hans Christer Andersson, Salvatore Arpaia, Detlef Bartsch, Josep Casacuberta, Howard Davies, Patrick du Jardin, Gerhard Flachowsky, Lieve Herman, Huw Jones, Sirpa Kärenlampi, Jozsef Kiss, Gijs Kleter, Harry Kuiper, Antoine Messéan, Kaare Magne Nielsen, Joe Perry, Annette Pöting, Jeremy Sweet, Christoph Tebbe, Atte Johannes von Wright and Jean-Michel Wal
  • Correspondence: gmo@efsa.europa.eu
  • Acknowledgement: The Panel wishes to thank the members of the Standing Working Group on annual PMEM reports: Salvatore Arpaia, Marc Delos, Jozsef Kiss, Antoine Messéan, Joe Perry, Lucia Roda, Jeremy Sweet for the preparation of this opinion, and EFSA staff: Saghir Bashir, Sylvie Mestdagh and Jane Richardson for the support provided to this scientific opinion.
  • Adoption date: 7 September 2011
  • Published date: 25 October 2011
  • Question number: EFSA-Q-2010-01254
  • On request from: European Commission


Following a request from the European Commission, the Panel on Genetically Modified Organisms of the European Food Safety Authority (EFSA GMO Panel) was asked to assess the monitoring report for the 2009 cultivation season of maize MON810 provided by Monsanto Europe S.A.

The EFSA GMO Panel assessed, in close collaboration with the EFSA Unit for Scientific Assessment Support, the methodology applied by the applicant for the Case-Specific Monitoring and General Surveillance of maize MON810 in 2009. Concerning the Case-Specific monitoring (CSM), the EFSA GMO Panel considered the plan for Insect-Resistant Management mainly based on the ‘high dose/refuge strategy’, monitoring of target pest resistance and education of farmers. Concerning General Surveillance (GS), the EFSA GMO Panel paid particular attention to the design and analysis of the farmer questionnaires.

From the data submitted by the applicant in its 2009 MON810 report, the EFSA GMO Panel did not identify adverse effects on the environment, human and animal health due to maize MON810 cultivation during the 2009 growing season. The outcomes of the 2009 MON810 report do not invalidate the previous risk assessment conclusions on maize MON810.

However, the EFSA GMO Panel notes a number of shortcomings in the methodology for CSM and GS. Hence, this scientific opinion gives specific recommendations for improvement of the strategy, methodology and reporting for the post-market environmental monitoring of maize MON810. The applicant should take into account the guidance on Post-Market Environmental Monitoring (PMEM) of genetically modified plants as outlined in the recent scientific opinion of the EFSA GMO Panel. The recommendations of the EFSA GMO Panel in this opinion supplement the previous recommendations on PMEM of maize MON810 in the 2009 scientific opinion for the renewal of the authorisation for continued marketing of maize MON810.