Hosts and symptoms of Plum pox virus: ornamental and wild Prunus species

Several ornamental and wild Prunus species have been identified as natural and/or experimental hosts for Plum pox virus (PPV). The significance of natural vs. experimental hosts, graft or bud‐transmitted infections vs. aphid‐transmitted infections in ornamental or wild Prunus hosts, and their relevance in the field situation, are not clearly understood. However, since PPV is aphid‐transmitted, any host in the field or nursery serves as a potential reservoir and source of inoculum and must be monitored and controlled in any PPV eradication or management programme.