SELECTING MACHINERY AND EQUIPMENT 331 



cumference than one with a small head. The hose should be 

 sufficient so that at least one operator may always be working 

 on a tree other than that being sprayed by the man on the 

 machine, in order that he may stay out of the mist and drip. 

 The hose should also be long enough so that the machine may 

 be moved without disturbing the operator until he has finished 

 his job. Short lengths hurry the operator and are the cause of 



(John Bean Mfg, Co.) 



Fig. 122. This is a modem type of machine, with center of gravity close 

 to the ground, all parts covered and mounted on rubber. The tower 

 on top of the tank is essential equipment. 



many incomplete jobs. Hose 50 feet long has been found to be 

 about the right length for ordinary apple-orchard spraying, 

 giving freedom of manipulation without being too cumber- 

 some. For trees planted closely and of small size, 30- to 

 35-foot lengths may be adequate. If one lead is used con- 

 stantly from the tank, a length of 15 to 20 feet may be suffi- 

 cient for this purpose. An outfit of large capacity, 15 gallons 



