ashore a/iTe during a reflinv. hi case ilie grower is Jai'ored zvitii 

 weather damp enough to make it safe, this luay probably be most conven- 

 iently done by spraying the margins where the ivorms co?ne ashore, 7vith 

 kerosene and then setting it afire while the 7vater is still on the bog. If 

 the grower is not so favored, it is probable that the spraying alone 

 would be fairl)' effectual. 



B. On bogs with winter flowage and enough water supply for 

 one good reflow : 



1. Hold the luinter flowage late {until toivard the 20th of May) 

 cuery third or fourth year, if the bog is being regularly attacked by this 

 pest. This treatment also holds for the fruit worm under similar 



bog conditions. 



2. In other years, draw off the zvinter flowage early in April and 

 do not reflow for the caterpillars until danger from frost is practically 

 past unless they are so plentiful as to threaten serious injury. Of 

 course, if frost so threatens, between the 15th and 25th of May, that 

 it seems necessary to reflow on that account, the water will then 

 destroy the worms. 



3. If the reflow must be used before it will destroy the worms, then 

 the only resort is arsenical poisoning as recommended below for dry 

 bogs. 



4. If the wor77is become very pletitiful, it would be better, in most 

 cases, to use the retio7u about the 20th of May and run the risk of later 

 frosts. 



5. If the bog is not level and water for only a partial reflo7u is to 

 be had, this water may be used as in i, 3 and 3 for the portions of the 

 bog which can be covered, and the remainder may be treated as 

 recommended for dry bogs. 



C. On bogs with winter flowage only : 



1. Hold the 7v inter flowage until after the middle of May every third 

 or fourth year. This is also recommended for the fruit worm. 



2. In other years, treat as for dry bogs. 



D. On dry bogs : 



I. If the young worms are found to be hatching plentifully, spray at 

 once {about the 8th of May) with arsenate of lead used at the rate of 

 seve7i pounds to fifty gallons of water. 



