ISHS Acta Horticulturae 95: II International Symposium on Small Fruit Virus Diseases
TRANSMISSION OF TOBACCO STREAK VIRUS IN RUBUS |
| Author: | R.H. Converse |
| Abstract:
Tobacco streak virus (TSV) was found to spread from infected plants into adjoining healthy, flowering blackberry plants (cultivar Boysen-72) at the rate of 8% per year over a six-year period. When similar Boysen plants were kept deflowered, the yearly infection rate was 4.5%. In parallel tests the spread of TSV into healthy, flowering 'Munger-70' black raspberry plants was found to be 25% per year, compared with 9% in deflowered plants. The importance of flowers in the spread of TSV in these Rubus cultivars is evident from these data; these results also show that an additional method of spread exists which is not related to the presence of flowers. | |
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