Olive sickle leaf symptoms widespread in Greece 1

Symptoms of olive sickle leaf, a disorder of olive considered to be of virus or virus‐like etiology, have been observed in Greece since 1980. Surveys at many places in Attiki, Peloponnisos and Makedonia regions showed symptoms in all cases, on cultivars Kalamon, Koroneiki, Manaki and Megaritiki. The frequency of symptom occurrence in individual trees and the intensity of symptoms varied from year to year, and 1981 was the year with the most frequent and strongest expression of the disorder. The proportion of affected shoots per tree usually varies between 5 and 90%.