CELERY. 



51 



very closely together on loose moist loam. To avoid heating, 

 consequent on packing large quantities of the plants together, 

 compartments, about two feet wide by eight or ten feet long, are 

 made by setting up boards which shall come to the tops of the 

 plants when in place. If the plants are closely packed, so as to 

 exclude the air, it is unnecessary to use earth between them. 

 When plants are stored in this way, it is important that the 

 temperature of the pit or cellar be kept as near the freezing point 

 as possible. If, however, it is desired to hasten the process of 

 blanching, the temperature may be raised. The soil in which 

 the plants are placed should be moist to prevent wilting, but the 

 foliage should always be kept dry or there will be trouble from 

 rotting. 



ENEMIES AND DISEASES. 



There are comparatively few insect enemies of celery, the most 

 important being the "Green Lettuce Worm" and the "Parsley 

 Worm," both of which may be destroyed by the use of kerosene 

 emulsion. 



There are several fungous diseases — such as blight, leaf spot, 

 rust, etc., — which, however, may be held in check by the appli- 

 cation of dilute Bordeaux Mixture or the ammoniacal solution 

 of copper carbonate. But in case a crop is seriously injured 

 by one of these diseases, it is safer to grow something else on the 

 land the next season, that any spores in the soil may be destroyed. 



