WHAT IS BIDING DONE TO CON'IROL CANKER 67 



Q. Of course if it does not get all of them it will only cure what 

 it comes in contact with? 



A. Yes, sir. 



Q. If you see that the tree is diseased, would you put it on heaTdly, 

 so that you could saturate it with the formaldehyde? 



A. You could not do that. I would cut the fungus all off from there, 

 and I would either bind it or cover it up with something, that would 

 keep it all out. 



Q. Do you think that using lime sulphur would disinfect the tools? 



A. I do not know whether or net it would, but ii it is made strong 

 enough it would. 1 see no reason why it would not if you use it strong 

 enough. But I would use corrosive sublimate. 



Q. I would like to ask if wood alcohol would dilute this asphaltum? 



A. I do not know whether or not it would, but I imagine that it 

 would lose a great deal of its proper consistency. 1 do not know. 



Mr. Yeager: I would like to ask you to make a little clearer the 

 distinction between what you are calling sun scald, and canker. You 

 spoke of canker fjrst, and later of sun scald. Are they identical, or is 

 there any difference? 



A. You misunderstood me. I did not speak of a treatment for sun 

 scald. What I consider sun scald is merely the bark freezing off some- 

 time during cold weather and destroying its growing power, and conse- 

 quently it cracks, and you are going to get an infection in there, and 

 set up a canker growth. We have found that a great many timesi Sun 

 scald is physical. 



Secretary Marshall: I would suggest that you tell them where they 

 can get this asphaltum, to cover these wounds with. 



A. I can't give any specific address at the present time, because 

 I do not remember, but you can write to any paving company and get 

 asphaltum, or any one who handles oil can give you the address of where 

 you can get the asphaltum. Now you who want to try it can use liquid 

 asphaltum. It is an asphaltum that is used in a liquid state by mixing 

 in gasoline or kerosene or something like that, and you can buy it in 

 gallon cans, and a brush to put it on, but the theory is that it is in- 

 jurious to the growth of the tree. 



A Member: Don't you think that raw linseed oil in Venetian red, 

 in almost all cases will keep a wound from cracking? That is my expe- 

 rience? 



A. On small cuts that is the best thing we can use. But on the 

 bigger cuts it is not so good. 



Q. Put it on twice, just like you would paint a building? 



A. Yes, sir. 



Q. (By the Chairman). Is there any more discussion? 



No response. 



