This innovative project seeks a sustainable solution for a pest that pierces healthy fruits during their ripening phase, causing significant damage. The initiative involves the experimental release of the parasitoid Ganaspis kimorum, a specific natural enemy of this fly, which will initially be established in two key production areas: cherry cultivation zones in the province of Castellón and in the Alicante Mountains.

The pilot phase is an essential preliminary step for definitive deployment. If successful in establishing the parasitoid and ensuring respect for endemic biodiversity, the medium-term objective is to carry out reinforcement releases. This will allow Ganaspis kimorum to establish itself naturally in the system, keeping pest levels below economic damage thresholds.

This measure complements the recent distribution of a low-environmental-impact biological insecticide (spinosad) by the Ministry. This product, distributed free of charge, will protect approximately 650 hectares of cherry crops in regions such as El Comtat, La Marina Alta, La Marina Baixa, L'Alacantí, L'Alcoià, and L'Alt Vinalopó. The use of this insecticide, along with biological control, aims to minimize residues on fruit and ensure adequate pest control with minimal environmental impact.

The Plant Health Service also continuously monitors the biological cycle of Drosophila suzukii and recommends the application of insecticide treatments, especially in plots with fruit in initial ripening stages or those that recorded significant damage in the previous season. It is crucial to protect ripe harvests given the rapid development of the pest and to combine treatments with prophylactic measures, avoiding leaving unharvested fruit both on the tree and on the ground. Bait treatments are not effective, so applications must be generalized to ensure good tree coverage.