ISHS Acta Horticulturae 386: XVI International Symposium on Fruit Tree Virus diseases
VIRUS INFECTIONS IN AUSTRALIAN PRUNE ORCHARDS |
| Authors: | M.B. Barkley, M. Sriskanthadas, R.A. Lamont |
| Abstract:
Prune trees in the major production areas of Australia were surveyed for viruses from 1991–1994. Eighteen percent of trees were found to be uninfected and 82% were infected with one or more of the following viruses when samples were indexed biologically and serologically: prunus necrotic ringspot (PNRSV), prune dwarf (PDV), and apple chlorotic leafspot (CLSV). Plum line pattern was detected in one sample; no green ring mottle infection was detected. Rootstock/scion incompatibility was observed in 26% of trees and appeared to involve genetic and physiological factors but could not be correlated with specific virus infections. The high incidence of virus infections in prune trees either <5 or > 15 years old suggests that even though uninfected propagating material was available from the Australian Fruit Variety Foundation (FVF), growers and nurserymen continued to use infected material. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
