Indiana Plant Diseases. 193 
CAULIFLOWER. 
Yellows caused by Fusarium conglutinans occurred in several market 
gardens about Indianapolis. A Sclerotinia stem rot was found killing many 
plants in one garden. 
CELERY. 
The Fusarium yellows was not serious this year. The growers near 
Lafayette and Goshen are using the resistant Easy Bleaching variety in 
place of the susceptible Golden Self-blanching. 
Early blight caused by Cercospora apii was found very severe in the 
Goshen crop and also near Lafayette late in the fall. The bacterial leaf- 
Fig. 4. Celery bacterial leaf spot. 
spot (Fig. 4) was severe in the Goshen crop and along with early biight 
was killing many leaves. Long petiole lesions were very common. This dis- 
ease was also found near Lafayette and Indianapolis. 
Late blight caused by Septoria petroselini was noted near Goshen and 
Lafayette but was not as destructive as early blight. Possibly the higher 
temperatures prevailing in Indiana cause early blight to be more destructive 
than late blight. 
A mottling of the foliage of the Easy Bleaching variety suggestive of a 
mosaic disease was noted at Goshen and Lafayette. Nematode root-knot 
was found at Goshen. Affected plants were badly stunted and dispiayed 
a peculiar type of tipburn. 
