APPLYING MATERIALS 



347 



The careful operator will cease operations occasionally and 

 inspect trees that have been covered to determine how well the 

 job has been done, and to correct practices and change equip- 

 ment when needed, A beginner can employ his time to no bet- 

 ter advantage than by watching carefully the spraying methods 



{Oaterpillar Tractor Co.) 



Fig. 133. An empty line sulfur drum is used as a means of support on 

 the tank. It is a very satisfactory device. This tree is being well 

 sprayed. The operator on the rear platform can cover the lower branches 



if he is careful. 



of a skillful operator who grows good fruit, or better still, by 

 spraying with him for a time. 



The amount of material used is not necessarily an index of 

 proficiency but may serve as a general guide. A knowledge of 

 the quantity is also useful in compiling the order. It varies, of 

 course, with the size of the tree. A tree with thin foliage or 



