ISHS Acta Horticulturae 94: XI International Symposium on Fruit Tree Virus Diseases
AN UNUSUAL SPREAD OF SHARKA VIRUS |
| Author: | M.J. JORDOVIC |
| Abstract:
The spread of Sharka (plum pox) virus was studied in orchards established in a region with severe infection. The spread of virus in one orchard was very slow. Between 1956 and 1975 only 2.62% of the plum trees become infected compared with 76.25% of the trees found in another orchard in the same locality. It is difficult to explain these results, but there are some indications that proximity of orchards in relation to sources of infection is one of the important factors. | |
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