Studies on the Fire-Blight Organism, Bacillus amylovorus 31 

 TABLE 5. Results of Blossom Inoculations 



ing the inoculum from the petals and stigmas into the nectaries and to 

 prevent insect visitation. 



In some blossoms, only two or three styles were infected by the blight 

 organism. About two days after inoculation the first symptoms of 

 disease were noted. The infected stigmas and styles were dark green 

 and appeared to be water-soaked. Only the upper third or half of 

 the style showed this symptom. In about four days after inoculation, 

 the stigma and the tip of the style were dark brown and began to 

 wither, while the part nearest the ovary was dark green. Sections 

 through such blossoms, and cultures from the various parts, showed the 



