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From $500 to $800 gross receipts is probably a fair 

 average, with from $200 to $400 expenses per acre. 



Several serious diseases are troublesome with 

 celery. The celery blight is perhaps the most 

 widely distributed and generally most prevalent. 

 When attacked by this disease the leaves turn yel- 

 low, then brown and finally decay. This trouble 

 usually begins its attack in the seed beds and is 

 carried from there to the fields. It yields readily 

 to treatment, but eternal watchfulness is the price 

 of success. The young plants in the seed bed should 

 be sprayed with bordeaux mixture every ten to four- 

 teen days, and the treatment continued after being 

 set in the field, especially when weather conditions 

 are favorable for the development of the trouble. 

 The spraying of the plants in the seed bed may be 

 done with any of the common hand sprayers, but 

 under field conditions the power sprayers must be 

 employed. This trouble is more pronounced in the 

 southern celery sections than in the northern. 

 Serious outbreaks in the North are usually to be 

 expected in extremely dry hot seasons. 



Heart rot attacks the heart of the plant, usually 

 during the blanching process and frequently causes 

 large losses. Its presence may be noted by the 

 offensive odors set up in the fields. Hot, moist, 

 sultry weather soon after blanching has been started 

 greatly favors the trouble. In the use of boards 

 something may be done to check its development 

 by widening the boards at the top, thus allowing 

 freer circulation of the air about the plants. In no 

 case should blanching be started during warm and 

 rainy weather. 



No Insect enemies of serious importance are 

 found attacking the celery. The zebra caterpillar 



