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Modeling the dynamics of potato cyst nematodes to optimize trap plant utilization

PhD research project awarded in the 2023 call for projects.

  • Title: "Modeling the dynamics of potato cyst nematodes to optimize trap plant utilization" ; Institute Agro Rennes & Université de Rennes.
  • Postdoctoral researcher: Yves Fotso Fotso.
  • Affiliated unit: INRAE, IGEPP (Institute of Genetics, Environment, and Plant Protection).
  • Co-supervisors:
    • Frédéric Hamelin, Institute Agro Rennes, IGEPP (Institute of Genetics, Environment, and Plant Protection).
    • François Castella, University of Rennes, IRMAR (Rennes Institute of Mathematics Research).

Project summary:

Potato production significantly contributes to global food security and economic activity. Damage caused by cyst nematodes Globodera rostochiensis and Globodera pallida, listed as "quarantine pests" in Europe, represents a major constraint for potato production worldwide. In Europe, chemical nematicides have been banned since 2018. Environmentally friendly agricultural practices, such as the use of trap plants (in mixtures or rotations), are therefore essential research areas for achieving agroecological transition. In agroecology, the goal is typically to maintain pest densities below an epidemic threshold. To limit cyst nematode infestations, it is necessary to test numerous combinations of control methods, which is challenging as this usually takes around a decade. Therefore, computer models will be developed to study the infestation dynamics of potato cyst nematodes under various control scenarios (mixtures and/or rotations with trap plants). The models will be based on laboratory and field data and will be geared towards decision support by developing interactive online applications. This project will enable the design of the most effective and environmentally friendly control strategies, benefiting potato producers and society as a whole.

See also