Diseases and Pests of the Apple and Their Control 229 



Table XI 



Showing Kate and Cost op Applying Sprat Materials m Six 

 op the Leading Apple Regions 



The accompanying table shows the amount of spray 

 materials used and the rate of application in different 

 regions. These and other data are taken to show the 

 approximate cost of spraying one acre of bearing orchards 

 for an entire season in each of six important apple regions. 

 In studying the amount used for a tree for each applica- 

 tion, the size and variety of the tree should be considered. 

 For example, the grower in Hood River, Oregon, applies 

 on an average of only 3 gallons to a tree as compared wijth 

 an average application of over 6 gallons to a tree elsewhere. 

 The Hood River Newtown with its low head is not to be 

 compared in size with a forty-year-old New .York Baldwin 

 tree and therefore does not require the amount of spray. 

 As a matter of fact, if the New York grower would spray 

 his Baldwin trees as thoroughly as the Wenatchee grower 

 sprays his Winesap, he would probably use at least twice 



