Fungicides 



457 



Fig. 230. — The nozzles are turned v,l m\ aiiu,lu to the lui 



spray may be directed upward or downward. After Faurot, 



uiL the 



rapidly spray even the tallest fruit tree, a special device en- 

 abling the operator to throw the spray to different distances. 

 Spray gims are being used by many commercial growers. 



Conveyors. — To economize still further in time and labor, 

 conveyors are used in many commercial orchards. These 

 are 400-gallon tanks equipped with low-pressure, high-speed 

 pumps, and gasoline 

 engines. The conveyor 

 carries the spray from 

 the mixing plant to 

 the sprayer. Two hun- 

 dred gallons of spray- 

 ing material can Ije 

 transferred from the 

 tank of the conveyor 

 to that of the sprayer 

 in less than two min- 

 utes. In this way the 

 power sprayer is kept Fig. 231. — Spraying grapes. 



