No. 4.] CRANBERRY GROWING. 269 



abundance later, they should be again cleared out, even though 

 considerable injury is done in the process of weeding. Any 

 weeding, however, done later than the 10th of August is, to say 

 the least, an extremely poor expenditure of time and money. 



The new bog should be resanded at least twice before it pro- 

 duces its first full crop, so that the runners may be caused to 

 root as they are produced each year and the vines thus develop 

 a strong root system and become well anchored. 



Care of a Bearing Bog. 

 After the third year the care of a bog should follow, in a 

 general way, the following lines of practice: 



The Use of Water. 

 The winter flowage should be put on as late in the fall or 

 early winter as possible without running serious risks of winter- 

 killing. As a rule, it is best not to put on this flowage until 

 after the first heavy snow storm. This often does not occur 

 until well into January, though the weather may become so 

 severe as to necessitate flooding before the middle of December. 

 In the spring, the flowage should be taken off as early as the 

 1st of April every other year, but it should be held as late as 

 the 20th of May in seasons which appear to promise bad fruit- 

 worm injury. It being difficult, however, from our present 

 knowledge to forecast such injury, it is probably best to hold 

 the water of the winter flood late every other year, at least 

 in locations where the fruit worm is usually destructive. Some 

 time during the first week in June the bog should be reflowed 

 as a special precaution against the attacks of the fireworm, and 

 also to clean it from any other pests which may be present in 

 small numbers. This reflow prepares it to go through the 

 season with a somewhere near even chance of keeping free 

 from miscellaneous insect troubles. This reflow should, as a 

 rule, be maintained for forty-eight hours. It should be put on 

 during the night, and also, if possible, taken off entirely during 

 the night, for if the tender, growing vines stand partly covered 

 with water and exposed to the sun for any length of time they 

 are likely to be injured by scalding. In case the winter flowage 

 is taken off late, and the season is also cold and late, this June 



