Pecan Diseases, and Spraying Outfits 197 



tank with a rather large capacity should be used in order to 

 lessen the necessity of refilling so often. Unless there is a 

 convenient water supply in or near the orchard, much time 

 will be lost in driving to the filling station each time the 

 spray tank becomes empty. This loss of time may be over- 

 come partially by hauling the spray material to the machine 

 in barrels or some other convenient receptacle. When feas- 

 ible, the refilling station should be provided with an elevated 

 tank so that the spray or supply tank can be filled by gravity. 

 When it is necessary to fill the spray tank from nearby 

 streams or ponds, much time can be saved by equipping the 

 spray pump with an attachment that will enable the operator 

 to let a hose do\\Ti into a stream and pump the water into 

 the tank. 



A pecan tree should be sprayed quickly and with the loss 

 of as little spray material as possible. A good method is to 

 begin on the lower limbs and move the spray gun to the 

 right and left with short uniform horizontal movements, 

 gradually working up to the top of the tree. On reaching 

 the top, another section of the tree is sprayed by similar 

 movements directed downward. The number of sections are 

 governed by the size of the specimen. By this method, the 

 tree can be sprayed uniformly and thus avoid overlapping 

 in some places and omitting others. 



