Research project Limiting the impact of Cucurbit aphid-borne yellows virus (CABYV) on the Flemish cucumber production

General introduction

Cucumber growers and those cultivating related crops faced a new viral threat in their greenhouses in 2021: CABYV, the cucumber aphid borne yellows virus. This virus can lead to yield losses. By combining scientific expertise with practical experience (from Flemish cucumber growers), we aimed for a swift response and effective disease management. The operational group focused on knowledge building, grower support, and improving control methods.

Research approach

A working group was established to collect knowledge and facilitate the exchange of practical experience across every link in the sector's value chain. All stakeholders were involved to help identify and discuss the sector’s specific needs. Knowledge about the virus was built through the analysis of field samples, genome studies, and observations on host crops and plants. A symptom database and an informational brochure were developed to support growers. Various control strategies, including different mesh netting techniques, were tested and compared in practice. All findings were continuously shared with the entire sector.

Relevance/Valorization

Besides the previous problems with open-air potyviruses, the losses due to Cucurbit aphid-borne yellows virus were imminent. Through the results obtained in the OG CABYV project, the problem was clarified, allowing growers to take more effective and precise action. The project resulted in the creation of a symptom database (Photo database-CABYV.pdf) and an information brochure (Brochure cabyv ) that growers can access.