Potato (Solanum tuberosum L.) is one of the most important vegetable crops in Egypt. Many diseases attack potato in the field and during storage as well. They cause great and destructive losses to the crop, since the diseases cause massive deterioration leading to the loss of hundreds of tons in a matter of days....

Fire blight has been known as a destructive disease of apple and pear for over 200 years. The disease is caused by the bacterium Erwinia amylovora (Burrill) Winslow et al. It has been reported from 40 countries around the world and caused serious losses to pome fruits and ornamentals plants, especially Rosaceae family....