164 BOARD OF AGRICULTURE. [Pub. Doc. 



Question. Does it have any effect on grape vines? 



Professor Fernald. It does not hurt any foliage. 



The Chairman. A large portion of the lecture referred 

 to the cranberry insects. We have some gentlemen here 

 from Cape Cod, notably the son of the cranberry king, 

 Mr. Makepeace. We would like to hear from him. 



Mr. Makepeace. I feel that I have been entertained by 

 what Professor Fernald has told us this afternoon. Of 

 course we can ask many questions. I would like to ask 

 Professor Fernald if in his experiments he has ever found 

 anything which was effective in destroying the girdle worm? 



Professor Fernald. I never had an opportunity to ex- 

 periment with insecticides upon them. We have done all 

 we can at Amherst. Now what we need is to send a man 

 onto the bogs to do field work. When we have performed ex- 

 periments under cover, then we want to go into the field and 

 see if we get the same results. That remains to be done, and 

 I have not the means at my command to do it. There should 

 be a man there to spend the entire summer. 



Mr. Makepeace. Do you think there should be more 

 than one application of arsenate of lead for the fire worm ? 



Professor Fernald. If they all hatched at once, and you 

 applied it immediately upon their hatching, unless there are 

 heavy rains, I should think one application would be quite 

 sufficient. That is a thing to be tested in the field. 



Mr. Makepeace. We know that they do not all hatch at 

 one time. 



Professor Fernald. Then I think you would be obliged 

 to apply this frequently. Would it not be the same as in 

 the use of tobacco water? You know many cranberry grow- 

 ers feel that it hurts the keeping qualities of the crop to flow 

 the bogs. I think I found cranberry growers who did not 

 flow their bogs, but preferred to use tobacco water instead. 



Mr. Makepeace. When they get so numerous that they 

 eat bog and all, it is best to flow, if you can. 



Mr. Crowell (of Dennis). Has this mixture ever been 

 tested in actual experience on a bog on the cranberry worm ? 



Professor Fernald. It has, but I haven't my notes. 

 Tests were begun by my assistant, but he had to take the 

 report of the results from the people there. I think that it 



