Diaphorina citri confirmed as a vector of citrus yellow vein clearing virus
Citrus yellow vein clearing virus (Potexvirus citriflavivenae, Potexvirus, CYVCV, EPPO Alert List) is known to be transmitted by mechanical transmission and insect vectors including Aphis spiraecola, A. craccivora, and Dialeurodes citri. CYVCV had been detected in the Asian citrus psyllid, Diaphorina citri (vector of ‘Candidatus Liberibacter asiaticus’ - Hemiptera: Psyllidae - EPPO A1 List), but previously no transmission studies had confirmed that Diaphorina citri can vector CYVCV.
During a field study conducted between 2021-2023, CYVCV was detected in Diaphorina citri in citrus orchards across Fujian Province, China. Inoculation tests and an experimental study using infectious clones confirmed that Diaphorina citri transmits CYVCV between citrus species, in a semipersistent manner.
Sources
Bin Y, Jiang L, Zhuang A, Li M, Li J, Song Z, Zhou C, Wei T, Li Y (2026) Semipersistent transmission of citrus yellow vein clearing virus by Asian citrus psyllid: insights from field surveys and infectious clone-based studies. Phytopathology Research 8(1), 32 https://doi.org/10.1186/s42483-026-00424-x