
& 
TOA s ry Sen 
{ s, . 
Some Celery Diseases. 
Outline of Discussion. 
I. Center Blight (bacterial). 
Treatment suggested. 
II. Stalk blight (bacterial). 
ITT. Celery leaf spot diseases. 
Celery Septoria (Septoria Petroselini, Desm., var. aa 
aan. , 
Spraying. 
Soaking the seed in Fungicides. 
Celery Cercospora (Cercospora Apii, Fr.) 
Celery Phyllosticta (Pihyllosticta Apii, Hals.). 
IV. The Celery Rusts (Puccinia bullata (Pers.), Winter, and Puc- 
coma Castagner, Thum.). 
V. Experiments in spraying. 
VI. May celery be safely sprayed with copper ohio 
INTRODUCTION. 
Celery is subject to different diseases due to bacteria or fila- 
mentous fungi. In some celery growing districts of the State 
these diseases have come to be of considerable economic import- 
ance, and their attacks are increasing in frequency and severity. 
Tt is the purpose of this article to vive 2 brief description of some 
of these diseases, to state some of the results of investigations 
made under the direction of this Station during the summer of 
1892, and to collate such other information on the subject of 
celery diseases as may be deemed reliable and important to celery 
growers. 
CENTER BLIGHT OR CENTER ROT. 
This name is commonly given to any disease of the heart or 

center of the celery plant. Our attention has been called to two 
troubles of this kind, apparently different, but possibly both are 
due to the same primary cause. One of these troubles will be at 
once recognized by the name “soft rot.’ A severe attack destroys 
