Prevalence, Isolation and Identification of Bacterial Canker Pathogens on Sweet Cherry Trees in Tekirdağ

Abstract

Sweet cherry (Prunus avium L.) is one of the most important fruit trees grown in Tekirdağ. Bacterial canker which reduces yield and quality of sweet cherry fruit and cause death of trees were investigated. For this purpose a survey study was conducted in 2012-2013 and 129 plant tissue samples were collected from symptomatic trees. As a result of survey studies, bacterial canker was determined in all orchards and diseases prevalence rate of bacterial canker was determined as 20-57%. Severity of disease was measured as 20-85% in Tekirdağ Province depending on orchards. As a result of laboratory studies 41 bacterial isolates of Pseudomonas syringae were obtained. As a result of classical and molecular identification tests, 23 isolates were identified as Pseudomonas syringae pv. morsprunorum and 18 out of 41 isolates were identified as a Pseudomonas syringae pv. syringae.