No. 4.] CRANBERRY GROWING. 271 



careful study of weather conditions, especially in connection 

 with the dew point and the action of the barometer. 



After the crop is harvested, the bog should be completely 

 reflowed for five or six days. This helps the vines to recover 

 from the shock of the tearing up which they receive during the 

 process of harvesting. It also destroys whatever girdler worms 

 may be present on the bog, if the water is put on before the 

 1st of October. No reflowage after this one is necessary or 

 desirable before the water is put on for the winter. 



Irrigation. 

 There is a variety of practice in connection with the irrigation 

 of cranberry bogs, and it is by no means certain what the best 

 practice is. A bog can be given altogether too much water 

 during the growing season, and most growers probably err more 

 in this direction than in running their bogs too dry. It is evi- 

 dent, however, that in periods of prolonged drought a bog can 

 be run so dry as to cause it injury. In case of doubt, it is 

 probably best to take a middle course and try to be sure that 

 the vines have enough water but not too much. If the sand 

 is moist up to within half an inch of the surface, even though 

 the. surface itself appears perfectly dry, it is pretty certain that 

 the vines have all the water they need, even if the water table 

 appears to be very low. 



The Use of Sand. 

 Experience and investigation seem to indicate that resanding 

 should be done every other year on a bearing bog. The oftener 

 it is done the more of a protection it is against frost, the girdler 

 and the tip worm. If it were not for these three factors, it 

 w^ould probably not be desirable to sand oftener than once in 

 three years. There is a difference in opinion in regard to the 

 best season of the year for sanding. Some, wdth the writer, 

 hold that the fall, after harvesting is done, is the best time for 

 this work. Others consider that the sand may be applied most 

 cheaply, evenly and effectively on the ice during the winter. 

 Still others believe that it is best to sand in the early spring 

 after the winter flowage has been let off. Sanding may some- 

 times be done most cheaply in the winter, although weather 



