Özet:

In this study, reaction of some popular hybrid tomato cultivars grown in Aegean region was tested to bacterial speck disease of tomato and disease incidence was determined in Şahnalı village in Aydın. A virulent isolate of Pseudomonas syringae pv. tomato B07-1 was spray inoculated to 6-8 leaves-old seedlings of cultivars of Beril, Dorit, 5656, Marmara, Newton , Selin, 144, in growth chamber conditions. Reaction of cultivars was evaluated with a disease severity ranking scale from zero to four. Cultivar 144, showed the most resistant reaction and ranked 1.13 for the disease severity while cultivar Newton, ranked 2.92 showing the most susceptible reaction to the disease, in the first experiment. In the second experiment, similar results were obtained for 144 (1.39) and Newton (2.42). In this study, cultivars 144 and Marmara showed highly resistant, Beril and Selin moderately resistant, Dorit and 5656 susceptible and Newton highly susceptible reaction to bacterial speck disease. A disease survey was conducted in 2011 and 2013 in Şahnalı village located nearby to main tomato production areas in Aydın and field- tomato cultivation is commonly practiced. When the disease occurred in the surveyed areas, incidence was 100 % in 2011 and 7 % in 2013. 

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