2. If caterpillars are present a fe^v days after the first refiow, put on 

 the water again for 24. to ^6 hours. 



3. As far as possible destroy all the 7vorms ^ohich are ivashed ashore 

 alive during a reflo7V. In case the groover is favored 7vith weather 

 damp enough to mahe it safe, this may probably be most convenie7itly 

 done by spraying the margins lahere the worms come ashore, 7oith /kero- 

 sene and then setting it afire zuhile the water is still on the bog. If the 

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

 be fairly effectual. 



B. On bogs with winter flowage and enough water supply 

 for one good reflow : — 



1. Hold the winter flowage late {until tojvard t/ie 20th of May) 

 every 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. O/i other years, draw off the zu inter flowage about the ijth or 

 20th oj April. This leaves about a month during which the vines 

 would be uncovered before the worms could be destroyed by flooding 

 and, with only one reflow possible, the shorter the time during which 

 flooding might be necessary to protect from frost the better. 



3. Do not reflow for t/ie caterpillars until danger from frost is prac- 

 tically 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. 



4. If the water niust be used before it will destroy the worms, \\\q.x\. 

 the only resort is arsenical poisoning, as recommended below for 

 dry bogs. 



^5. If the worms become very plentiful, it zvould be better, in most 

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

 frosts. 



6. ff the bog is not level and iciater for only a partial reflo7V is to be 

 fiad, this water may be used as in 1,2 and 3 for the portions of the 

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

 recommended for dry bogs. 



