86 CELERY CULTURE 



Many of the large growers of celery have discon- 

 tinued spraying owing to the cost of materials, 

 equipment, and labor, preferring an occasional loss 

 of a large part of the crop from blight. A high state 

 of fertility and thorough cultivation are of impor- 



FIG. 36 HOME-MADE SPRAYING MACHINE 



tance in the prevention of diseases, but thorough 

 spraying may frequently save the crop. The soil 

 upon which the celery is grown should be kept in a 

 sanitary condition by removing all diseased plants 

 and refuse from the field after harvesting each crop. 

 The usual method is to plow under all refuse mat- 

 ter and abandoned plants, entire crops that are 

 badly infected by disease being frequently treated 



