ISHS Acta Horticulturae 193: XIII International Symposium on Fruit Tree Virus Diseases
RASPBERRY RINGSPOT VIRUS INFECTION IN PLUM TREES |
| Author: | B. Zawadzka |
| Abstract:
Raspberry ringspot virus (RRV) was identified in declining trees of Ruth Gerstetter and few other cultivars in several plum orchards. The virus was most easily isolated from Myrobalan roots and rootstock suckers but occasionally also from the leaves. The affected trees were stunted and necrosis were present at their graft union. The bark at the lower part of the trunk was thick and spongy. RRV was isolated also from the seedlings obtained from seeds of infected trees, what indicated that it is seed transmitted. The bait plants planted in the soil taken from under the infected trees became infected with RRV. This suggests that the vector of RRV, Longidorus sp., is present in the orchard soil. The patchy distribution of the diseased trees, typical for infection with NEPO viruses, was observed. | |
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