THE BROWN ROT OF SOLANACEAE : CAUSE 



187 



FIG. 130. Livid color and bacterial ooze on a petiole (/)) of Tropceolum 

 (common garden nasturtium). Inoculated by needle pricks June 26, 191S, on 

 the hypocotyl under the petiole with Bacterium solanacearum plated from an in- 

 oculated wilting tomato plant. Photographed July 1. X 5. 



