Raspberry leaf blotch emaravirus in Bosnia and Herzegovina: population structure and systemic movement.

Raspberry leaf blotch virus (RLBV) is the putative agent of the homonymous disease and even though Bosnia and Herzegovina is a major producer worldwide there is no report of the virus presence in the country. We studied the virus population structure and assessed its ability to move systemically. RLBV is widespread in production areas and has a homogeneous population structure; leading to the hypothesis that the primary mode of dissemination is propagation material. The ability of the virus to move systemically eliminates propagation of root cuttings as a viable option to obtain RLBV-free plants, leaving RT-PCR screening as the better option to propagate RLBV- free plants in the absence of clean-up facilities or certification programs in the country.