- The citrus industry worldwide is being challenged by the spread of Huanglongbing (HLB), a graft-transmissible disease associated with species of the bacterium Candidatus Liberibacter, which is vectored by the Asian citrus psyllid (ACP), Diaphorina citri.
- NCPN-citrus has grown to include 10 centers in 9 US states and territories with citrus foundation blocks maintained in protective structures to exclude ACP and HLB and other vectors and citrus diseases.
- NCPN support allowed high throughput citrus diagnostics to flourish, which in return led to the increased availability of pathogen-tested citrus propagative materials, thus reducing infection rates in commercial citrus and promoting the use of NCPN produced materials among citrus enthusiasts and hobbyists.
- NCPN supports the Citrus Clonal Protection Program (CCPP) at the University of California, Riverside, the citrus center that was the birthplace of basic citrus therapy and bioindexing technologies, establishing a citrus germplasm model system adopted by all citrus centers around the world.
- To prevent the spread of citrus diseases, always use trees produced by licensed reputable nurseries that are using NCPN-produced pathogen-tested citrus propagative materials. Do not move citrus trees or tree parts within or into the US.