574 ANNUAL REPORT OF THE Off. Doc. 



MR. SCHWARZ: I took it from Dr. Funk's paper that he has 

 been successful in the use of kerosene. 



PROFESSOR SURFACE: If 1 had an orchard 1 should spray it 

 with pure kerosene, but I would not recommend my neighbor to 

 do so. I would do it on a fine clear day and would put it on with 

 the finest Vermorel nozzle with the finest spray. I would give it 

 just a breath and that is all, and then it would evaporate, just 

 enough to kill the insect and not kill the tree. But if I should wet 

 it a quarter of a second too long I w^ould kill the tree. There are so 

 many things to be taken into consideration, in connection with this 

 matter, that there is danger of doing injury. 



MR. LEDY: What would be your excuse for using clear kerosene 

 when you can use crude petroleum and eliminate the danger? 



PROFESSOR SURFACE: I would prefer to use the crude petro- 

 leum because it sticks on better. I saW' in Dr. Groff's orchard where 

 he sprayed in April and it was there in October. 



A Member: Would you use that spray on peach trees? 



PROFESSOR SURFACE: I call on Professor Marlatt to come 

 forward and help me out. 



PROFESSOR MARLATT: You are doing very well and I don't 

 think it is necessary. 



The PRESIDENT: We will be glad to hear from you. 



PROFESSOR MARLATT: This is taking advantage of me, but 

 I suppose I cannot help it. Your Secretary promised me that I 

 should not be asked to get on my feet except some one was in 

 error, and I have heard no errors made. 



The SECRETARY: And except some one should ask a question. 



PROFESSOR MARLATT: I have been very much interested in 

 what has been said and especially pleased at the sound advice that 

 has been given you. I can subscribe to all that has been said 

 by all the speakers with reference to the San Jos^ Scale and have 

 been specially impressed by the practical work that has been done 

 by Dr. Funk. Evidently he understands it. He has certainly shown 

 himself to be very familiar with the scale and the remedies that 

 should be applied. I was very much pleased to listen to his ad- 

 dress and I felt when he was talking that he must have consulted 

 me before he got on his feet because he expressed my own views. 



The same applies to Professor Atwood, of New York State. I have 

 heard of him for a number of years but never had the pleasure of 



