trol satisfactorily, though on bogs with abundant water supply, or 

 even good winter flowage, its injury may be greatly reduced and at 

 little expense. Dry bogs and those which have the w'inter flowage 

 drawn off early in the spring suffer worst as a rule from this insect's 

 attack, especially the former, while those which have the winter flow- 

 age held on late every year are practically immune. No bog on 

 which the water was kept until after the middle of May, during the 

 past season, even though that had not, in many cases, been the usual 

 practice, was at all seriously troubled. Unfortunately, the custom of 

 holding the winter flowage late every spring seriously reduces the 

 crop and gives the vines a strong tendency to the excessive growth 

 of wood. For this reason, if the water be used in this way to keep 

 down the fruit worm, the grower is simply getting out of one diffi- 

 culty into another even more serious. Occasional late holding does 

 not, however, seem to cause any serious injury. 



According to Prof. J. B. Smith, it has been found by experiments 

 on this insect in confinement, that early submergence in the fall is 

 very destructive to those caterpillars which have but recently formed 

 their cocoons. (The worms pass the winter in cocoons in the sand 

 on the surface of the bog.) 



In fighting the fruit worm, as well as other cranberry insects, water 

 is the grower's cheapest and most effective weapon. Where availa- 

 ble in sufficient abundance for a complete winter flowage, it can 

 probably be so handled as to reduce the injury by this insect to a 

 point where insecticides, even if entirely successful, would never be 

 desirable, as the expense connected with their use would be greater 

 than the benefit derived. On dry bogs, however, insecticides seem 

 to be the only practicable remedy. 



Recom7nciidaiio7isfor treainiciit : — 



A. On bogs which have abundant water supply for winter 

 flowage and for rapid reflowage : — 



I. Reflow hmnediately after picking, for tefi days or tivo weeks. 

 Draw off this flowage and, after alhnvi/ig the foliage to ripe?i, put on 

 the water for the winter. If, in a series of closely connected bogs, 

 some bearing early varieties only are so situated that they may be 

 flowed independently of the others, reflow them as soon as the fruit 

 is off, without waiting to finish picking the other bogs. 



