PRINCIPLES OF SPRAYING 



pumps are used It Is desirable to have a special 

 truck for the outfit. The front wheel should 

 be made low so as to turn under the tank to 

 enable the driver to make short turns around 

 the trees. A tower Is desirable where high old 

 trees are to be sprayed. This should be sub- 

 stantial but as small as Is consistent with the 

 purpose so as not to catch on the limbs and 

 make It difficult to get close up around the trees. 

 The height of the platform must be regulated 

 by the need and by the roughness of the ground. 

 On steep side hills the wagon body on which the 

 tank rests should be underslung. 



In order to get as near to the work as pos- 

 sible get a long hose — from twenty to thirty 

 feet according to circumstances. The best 

 quality, three to five ply, Is none too good. 

 Hose should be three-eighths to one-half inch 

 In diameter, one Inch being too heavy. Ex- 

 tension rods are a practical necessity. They 

 should be ten to twelve feet long and made of 

 bamboo lined with brass, that Is, as light as 

 possible. Nozzles are very Important In thor- 

 ough and effective spraying. There Is no best 

 nozzle, nor one with which ail the work can 

 be done. 



Several things should be considered In select- 

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