224 THE CONNECTICUT POMOLOGICAL SOCIETY. 



power, and I can load up a tank with compressed air at a 

 pressure of 225 or 230 pounds in about 7 minutes, and at the 

 same time load the other tank with liquid, and in that way I 

 can keep six sets of tanks going in an orchard all the tim.e. 

 I use six sets of tanks, which require six teams and two 

 men with each team and a pair of horses, and in that way we 

 can cover a 350-acre orchard, if the weather is good, in about 

 a week or 8 working days. The spray tanks are like two saw- 

 logs lying on a wagon, they are about 8 feet long and 3 feet 

 in diameter. They are tested up to a pressure of 250 pounds, 

 but I load one with compressed air at a pressure of 225 

 pounds, and the other with liquid. We drive out into the 

 orchard, we connect the two tanks by a valve, and when the 

 air flows into the liquid tank, the pressure begins at once. 



I was afraid I was going to have trouble in regulating 

 the pressure, but I found no trouble at all, except, if anything 

 goes wrong with the hose, or the nozzle stops up, they have 

 to shut off, but ordinarily they have no trouble, for they 

 turn the air in just fast enough to balance the liquid which 

 goes out, and there is a constant flow of air. We are spraying 

 big Albemarle Pippin trees 30 and 40 feet high without any 

 serious difficulty. I think I have done a mighty good job. I 

 took an orchard infested with San Jose scale and got that 

 cleaned tip and I think we did pretty well. I couldn't get 

 along without it. All my land is rough and hilly. 



A Member : Are those tanks of equal size ? 



Mr. Lupton : They are of equal size, yes, sir. 



A Member: What is the capacity? 



Mr. Lupton : 135 gallons. 



A Member : What does the outfit weigh ? 



Mr. Lupton : About 600 pounds, and I put it on my 

 ordinary farm wagon, I trussed up the tanks and set them 

 up myself. I made a cradle and fastened it down tight with 

 a piece of iron tire or iron rope, lifted the cradle up and put it 

 on an ordinary farm wagon, and when I got through with the 

 spraying I took off the tanks and put them in the barn, and 



