EFFICACY OF SOME PLANT ACTIVATORS ON BACTERIAL CANKER OF TOMATO IN AEGEAN REGION OF TURKEY

The experiment was carried out to evaluate the effect of different plant activators on some pests including C. michiganensis subsp. michiganensis, the causal agent of bacterial canker of tomato in a greenhouse, naturally infected by the bacterium during growing period including autumn 2002-spring 2003 in Mugla province of Aegean Region of Turkey.
The experiment was arranged in a factorial plot design and included 4 different treatments (ISR 2000, consecutive application of ISR 2000 and CropSet, Messenger and water) with 4 replications.
Evaluations for bacterial canker were done at the end of growing season by estimation of disease incidence (%) and disease severity index based on 0-5 scale.
ISR 2000 and consecutive application of ISR 2000 and CropSet reduced the disease incidence significantly from 87% (water control) to 44% and 42% and the severity index from 4.37 (water control) to 2.45 and 2.56 respectively.
The incidence (80%) and severity index (4.55) in Messenger treated plots was not significantly different from these in water control plots.

II International Symposium on Tomato Diseases

N. Ustun, E. Ulutas, N. Yasarakinci, T. Kilic

tomato, bacterial canker, activators

https://doi.org/10.17660/ActaHortic.2009.808.68