368 Report of the Horticultural Department of the 



two nozzles to the row. It is drawn by two horses. The wheels and 

 seat were taken from an old potato digger. To one of the wheels a 

 sprocket wheel is attached. This is connected with an eccentric which 

 works an upright shaft which in turn works the handle of the pump. 

 The pump handle has several holes drilled in it, permitting different 

 lengths of stroke. The crop sprayer attachment is of iron pipes fitted 

 with brass nozzles. A corroded part can be cheaply replaced. The 

 nozzles can be tilted upward when not in use, thus preventing sedi- 

 ment from settling into and clogging them. In general it may be 

 said that the spray cannot be so well directed from stationary nozzles 

 as by hand. 



Nearly all of the spray-pump manufacturers are now making 

 potato-sprayer attachments wdiich may be connected to the ordinary 

 spray outfit. They are also making the complete field-crop power 

 sprayer of the type just described. In the case of wagon outfits the 

 apparatus is generally attached at the back of the truck and has one 

 or more nozzles for each row. They are adjustable to accommodate 

 different widths of row. Some have special devices for throwing the 

 liquid sideways or upward into the plants from below. They are 

 made to spray from two to six rows at a time. By means of a folding 

 device the crop-sprayer attachment can be turned up when going 

 through a gate or turning at the end of a row. 



VINEYARD SPRAYERS. 



For vineyard use the ordinary barrel outfit is often mounted on a 

 stoneboat or on a two-wheeled cart or wagon. It is sometimes neces- 

 sary to shorten the axle of the wagon to avoid striking posts and 

 vines. Power sprayers are also used which are very similar in princi- 

 ple to the field-crop power sprayers already described. The nozzles 

 if stationary are directed so as to spray sideways, or in some cases are 

 elevated directly over the row and spray downwards. The spray as 

 already stated cannot be so well directed from stationary nozzles as 

 by hand. 



