BIOVEXO Explores Apulian Olive Orchards
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Investigating BIOVEXO Research Solutions in the Field
Just one day after the successful and inspiring BIOVEXO Final Conference, the project consortium reconvened on 14 November 2025 for a hands-on field visit to olive orchards in the heart of Apulia. After years of laboratory work, greenhouse trials, large-scale field validations, stakeholder engagement, and intense collaboration across Europe, the opportunity to observe the project’s solutions directly in the field offered a powerful illustration of the real-world impact that BIOVEXO aims to deliver.
Apulia, one of the regions hardest hit by Xylella fastidiosa, is not only a symbolic location but also a natural outdoor laboratory for researchers seeking effective ways to combat the bacterium. Decimated olive groves, economic losses, and threats to centuries-old cultural landscapes have made this region a focal point for scientific and political attention across Europe. Against this backdrop, the field visit served as a vivid reminder that BIOVEXO’s mission extends far beyond research: it is fundamentally about helping communities, preserving livelihoods, and protecting a cultural heritage that has shaped the Mediterranean for millennia.
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A Visit Led by Local Experts and European Support
The consortium was honoured to be joined by Mrs. Karin Nienstedt, EU Policy Officer at the European Commission, whose presence signalled the importance of the project’s achievements and its contribution to ongoing EU efforts to support sustainable, science-based responses to plant health threats. Her participation underscored the Commission’s interest in ensuring that project results can be translated into practice and aligned with broader European agricultural and environmental objectives.
The field visit was hosted and expertly guided by two key BIOVEXO partners for field trials:
- Mrs. Enza Dongiovanni from CRSFA (Centro di Ricerca, Sperimentazione e Formazione in Agricoltura)
- Mr. Pasquale Saldarelli from CNR (Consiglio Nazionale delle Ricerche)
Both have been deeply involved in the regional battle against Xylella fastidiosa and have played leading roles in implementing BIOVEXO’s field trials. Their explanations provided invaluable context, detailed insights, and on-the-ground interpretation of the strategies developed and tested over the course of the project.
Field 1: Newly Planted Olive Trees Treated with BIOVEXO Microbial Solutions
The first stop of the visit was an orchard of newly planted olive trees, where the consortium could observe how BIOVEXO’s microbial-based preventive solutions have been applied from the earliest stages of tree development. These biological products aim to increase plant resilience, strengthen natural defence mechanisms, and reduce the risk of infection.
Walking among the young trees, consortium members were able to:
- Examine the application techniques used during planting and early growth stages
- Observe initial signs of enhanced plant vigour
- Discuss pathogen pressure in the surrounding area
- Compare the treated trees with baseline expectations for untreated orchards
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The visual cues were subtle but promising. In a region where the threat of infection looms constantly, the overall health and uniformity of the newly planted olive trees demonstrated that preventive strategies can play a meaningful role in establishing more resilient groves. For many participants, seeing BIOVEXO research applied to trees just a few years old highlighted the long-term vision of the project: protection that begins at planting and continues throughout the tree’s productive life.
Field 2: Mature Olive Trees Showing Treated Symptoms
The visit then moved to a second site where more mature olive trees, some already exhibiting symptoms of Xylella infection, were being treated using BIOVEXO’s mitigation strategies. Unlike the preventive focus of the first orchard, this site illustrated how the project’s solutions can help reduce disease progression and slow the decline of trees that have already been affected.
Here, researchers and field technicians have been applying treatments intended to:
- Reduce bacterial load within the plant
- Strengthen physiological responses
- Slow or limit symptomatic expression
- Support overall tree vitality despite infection pressure
The visual contrast between treated and untreated areas was evident. Trees receiving BIOVEXO-directed care showed improved canopy density, fewer desiccated branches, and a generally more stable condition. While no treatment can reverse infection entirely, these improvements reflect meaningful advances in managing disease severity. Progress that offers hope for farmers seeking ways to extend the life and productivity of their groves.
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An Elaborated IPM Strategy Behind the Field Trials
Across all orchards used for field trials, BIOVEXO’s work has been guided by an elaborated Integrated Pest Management (IPM) strategy specifically designed for Xylella management. This strategy combines biological treatments, vector monitoring and control, agronomic practices, and continuous disease surveillance to create a comprehensive, sustainable approach. Developed collaboratively by researchers, agronomists, and field practitioners, the BIOVEXO IPM framework ensures that preventive and curative actions complement each other, adapt to local conditions, and minimise environmental impact. The field visit offered a clear demonstration of how this integrated approach is being translated into practical, actionable routines for olive growers in affected territories.
Seeing Five Years of Research in the Field
For many members of the BIOVEXO consortium, this field visit marked a particularly emotional and rewarding moment. After nearly five years of collaborative research, seeing the strategies and solutions applied directly in the landscape where they are most urgently needed gave tangible proof of how far the project has come.
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Accompanied by local experts, the consortium discussed:
- The challenges of scaling biological treatments
- Variability in disease pressure across different orchards
- The need for continued monitoring, refinement, and farmer training
- The importance of integrated pest management approaches that combine prevention, monitoring, and targeted intervention
Mrs. Nienstedt’s engagement brought an additional dimension to the discussion, reinforcing how European research funding and policy guidance can work hand in hand to support regions affected by plant health crises.
A Future Built on Collaboration and Knowledge
The field visit concluded with a renewed sense of purpose. While Xylella fastidiosa remains a formidable threat, the work of BIOVEXO and its partners demonstrates that science-based, sustainable, and practical solutions are possible, and already taking root in Apulia’s orchards.
With only weeks remaining before the official end of the BIOVEXO project, the consortium left the orchards encouraged, motivated, and proud to see how their collective efforts are contributing to safeguarding not only trees and crops, but also traditions, economies, and entire communities.
Click on the button below to watch a video on the field visit.
