Clone-Specific Variation in Myzus persicae Influences Transmission of BMYV and BYV and Associated Feeding Behavior

Sugar beet is a crucial crop in worldwide agricultural production. However, its productivity is increasingly threatened by piercing-sucking insects, particularly aphids, which transmit yellowing viruses. The partial ban of neonicotinoids in Europe has exacerbated viral infections, underscoring the urgent need to understand aphid-mediated virus transmission mechanisms. This study investigated the transmission efficiency of Beet Yellow Virus (BYV) and Beet Mild Yellowing Virus (BMYV) by various clones of Myzus persicae sourced from different sugar beet seed companies across Europe. Contrasted transmission rates were observed among aphid clones, with different prolonged penetration behaviors identified as a key factor. These findings underscore the importance of aphid clone behavior in virus transmission and emphasize the need to incorporate clone-specific dynamics into sugar beet resistance strategies. By informing targeted breeding programs, this research contributes to enhancing crop resilience and ensuring sustainable production of sugar beet.