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| Authors: | S. Spiegel, A. Frank |
Abstract:
A study of strawberry plants for the presence of viruses was started in 1980 in Israel.
Plants of imported cultivars and of the Israeli cultivar 'Nurit' were indexed by leaf graft procedures.
It was found that strawberry mild yellow-edge virus is very common in 'Aliso', the dominant cultivar grown in the country at present.
The green-petal disease was found in strawberry plants in a few locations in the early winter season of 1981–1982. Mycoplasma-like bodies were found by thin-section electron microscopy in plants showing typical green-petal symptoms.
The presence of aphids was checked routinely in commercial fields. Aphis gossypii was found in many instances and in large colonies. Chaetosiphon fragaefolii was not found in this study, despite an intensive search for this aphid species.
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