PRELIMINARY RESULTS OF A SURVEY OF VIRUS INFECTIONS IN AUSTRALIAN PRUNE ORCHARDS

Major prune growing districts were surveyed for viruses from 1991–1993. Only 14 % of trees were found to be uninfected, while remaining trees were infected with one or more of the following viruses: prunus necrotic ringspot (PNRSV), prune dwarf (PDV), and apple chlorotic leafspot (CLSV). No infections by the bark splitting strain of CLSV plum line pattern virus, or green ring mottle were detected.
Occurrence of rootstock/scion incompatibility observed in 21 % of trees appears to involve genetic and physiological factors, and possibly CLSV infections.
The high incidence of virus infections in prune trees is attributed to use of both infected rootstock and scion material for plant propagation.

V International Symposium on Plum and Prune Genetic, Breeding and Pomology

M.B. Barkley, M. Sriskanthadas, R.J. Wickson

Prunes, virus, incompatibility propagation

https://doi.org/10.17660/ActaHortic.1994.359.27