76 THE COX.VECTICUT POMOLOGICAL SOCIETY. 



\^ick-1'rksidi-:nt Drew : Anyone else that would like to 

 talk on that subject, whether it is necessary to use more than 

 150 pounds pressure for spraying? 



Mk. S. L. Lupton : I suggest you ask how many use 

 150 puunds. 



Vice-President Drew : I\Ir. Lupton suggests 1 ask 

 how many people use 150 pounds pressure for spraying. 

 Those that do will please indicate it. I find this, we use less 

 than that a good deal, and I find most people don't use 150 

 pounds for spraying. 



Mr. Lupton : Did I understand someone in New York 

 state, at the experiment station, or some official, to say that 

 that matter was carefully tried out last year and proven that 

 80 pounds pressure was just as good as 100 and just as good 

 as 125? Didn't I hear Mr. Van Alstyne, of New York, 

 make that statement on that point? Do you know anything 

 about it, Mr. Whetzel? 



Prof. Whetzel: I couldn't say anything about it. But 

 I might sa\-, Prof. H. W. Riley, of our college, has devised 

 a machine for testing nozzles, and he has tested a large num- 

 ber of them, and our general opinion is that the type of noz- 

 zle will determine how much pressure you must use to get 

 best results. For example, small nozzles of the Vermorel 

 type give very good results at relatively low pressure, while 

 large nozzles require much higher pressure to get the fine mist 

 that you need for spraying. I think in our spraying we use 

 125 pounds pressure, and in the field from 125 to 150. Many 

 men think they are using a high pressure, although they actu- 

 ally do not. We have tested it out in Prof. Riley's laboratory 

 and put a pressure against the nozzle and at the tank, and 

 there will be quite a difiference of pressure between the noz- 

 zle and the tank. 



Vice-President Drew : Can anybody tell us whether 

 with 150 pounds he has gotten any better results? 



Mr. Ives: That means me, I guess. Why, more spray- 

 ing is done in a given time, vastly more, under high pres- 



