Research project Host status and damage threshold of cauliflower for the quarantine root-knot nematodes Meloidogyne chitwoodi and M. fallax.
General introduction
What changes to crop rotation in field and horticultural farming can help control the quarantine root-knot nematodes Meloidogyne chitwoodi and M. fallax? That is the research question addressed by the MELOBLOEM project. These soil-dwelling nematodes pose a growing threat to Belgian potato and vegetable production. Strict regulations and the lack of proven, effective rotation options are putting growers under economic pressure. The project investigates whether cauliflower and other brassicas can be safely and profitably grown on infested plots. The results should lead to better rotation strategies and an expansion of cultivation options.
Research approach
The project combines controlled pot experiments and field trials on naturally infested plots. In pot experiments, the host plant status and damage threshold of M. chitwoodi and M. fallax are quantitatively determined for cauliflower. In addition, the development and infection process of these nematodes in various brassica crops are investigated in pots. Under field conditions, the population dynamics of the nematodes are monitored during and after cultivation. The results are integrated into recommendations for crop rotations.
Relevance/Valorization
MELOBLOEM supports the implementation of the EU Plant Health Regulation (EU) 2016/2031 by providing scientifically substantiated data on the host plant status and damage thresholds of brassica crops for M. chitwoodi and M. fallax. The results provide policymakers with concrete tools to evaluate existing cultivation restrictions and rotation lists in quarantine zones and, where appropriate, update them while maintaining a high level of plant health. The results are directly applicable in cultivation advice, risk assessment, and profitability estimates. Valorization is achieved through practice-oriented communication, integration into tools such as Best4soil, and consultation with the FASFC. In this way, the project can contribute to policy adjustments and to sustainable nematode management in the sector.
Financing
FOD Volksgezondheid, Veiligheid van de voedselketen en Leefmilieu
