BULLETIN 13<5 



Aug^ust, 100-4- 



Ontario Agricultural College and Experimental Farm 



SOME BACTERIAL DISEASES OF PLANTS 

 PREVALENT IN ONTARIO. 



FIKE BLIGHT OK TWIG BLIGHT, by F. C. Harrisox 



B ACTERIOSIS OF BEANS, by B. Barlow 



SOFT ROT OF CAULIFLOWERS, FALL TURNIP, ETC., by F. C- 

 Harrison 



SOFT ROT OF SWEDES OR YELLOW TURNIPS, by F. C. Har- 

 rison 



A ROT OF CELERY, by B. Barlow 



12 Illustrations (Figs. 3-12 original F. C. H.) 



FIRE BLIGHT. 



" That species of blight which is sometimes called the ' tire blight, 

 frecjucntly destroys trees in the fullest apparent vigor and health, in 



Fig. 1. — A pear orchard badly infected with Fire Blight. 



a few hour.s turning the leaves sud.lenly brown, as if they had passed 

 through a hot Hanie and causing a morbid matter to exude from the 



1 — 



13ti 



