Estratègies en plagues cultiu del noguer - Validation of a strategy for priority pests in walnut cultivation in Catalonia: Cydia pomonella i Apomyelois ceratoniae

One of the main concerns of the walnut-producing sector is the lack of effective pest control methods, a challenge that is particularly significant in minor crops. The principal pests affecting walnut orchards are the lepidopteran species Cydia pomonella (codling moth) and Apomyelois ceratoniae (carob moth). Both attack the nut directly and can cause substantial losses, as the level of damage tolerated for commercialisation is extremely low. In addition, the symptoms they cause are very similar, making it difficult to distinguish between them, particularly at the larval stage.

Understanding when these species are present throughout the crop cycle, which pest predominates at different times, and how their development is influenced by weather conditions and alternative host plants is essential for improving control strategies. At present, mating disruption is an effective control tool against codling moth, but it needs to be better adapted to the specific characteristics of walnut production systems. At the same time, the feasibility of applying this technique to the control of Apomyelois ceratoniae also needs to be assessed, as this solution is not yet available in Spain.

Drawing on the knowledge generated by the project, together with the validation of selected management strategies, an integrated pest management approach will be developed to improve the control of these pests and reduce their impact on walnut production.

Action of the Strategic Plan of the PAC 2023-2027 co-funded by: