14 



FARMERS BULLETIN 933. 



nary garden hose, even when using a barrel pump. The writer has 

 broken garden hose in the space of one hour. Hose should be 

 smooth on the outside instead of corrugated, since smooth hose can 

 be repaired by wrapping with adhesive tape. Experience indicates 

 that it is much better to have hose of one-half inch diameter than 

 a smaller or a larger size. 



For convenience in operation the leads of hose should be from 40 

 to 50 feet long. Hose of this length permits the operator to reach 

 the farthest side of the largest trees in groves where they are planted 

 at the average distance. Since the hose wears out first at the point 





FIG. 14. A power spraying machine of the underslung type, with the engine and pump 

 forward, the tank in the rear. 



of attachment to the machine or rod, this length permits the hose 

 to be cut off and reattached without making it too short. With a 

 long hose both the mules and the machine may be kept out of range 

 of the spray. 



RODS. 



In spraying, an extension rod ranging from 8 to 12 feet in length 

 should be supplied with each line of hose. The length will depend 

 upon the height of the trees. This rod may be a regular bamboo rod 

 or a small gas pipe. The former is more suitable for this work 

 because it is lighter and more easily handled after becoming wet, 



