176 



SPRAYING APPARATUS 



Spray Pumps. There are quantities of them on the market. 

 Some are better than others, but most of them are good. A few 

 of them are worthless or nearly so. Of course the type of pump 

 one ought to have depends on whether he has six trees, or sixty, 

 or six thousand; also on whether his trees are old or young, 

 peach or pear, dwarf or standard. There are five general types 



, of good pumps which it seems 

 worth while to mention. 



I. The bucket pump is 

 shown in Figure 76. This is 

 for the man with the six trees. 

 And it will surprise anyone 

 who has not tried it to see 

 what an efficient little pump 

 it is. The writer has never 

 been able to figure out where 

 it gets its pressure, but it 

 certainly develops one. The 

 good points are: (1) That it 

 develops this high pressure 

 and will, therefore, deliver 

 a good spray; (2) that it is 

 very cheap, so that anybody 

 can afford one; and (3) that 

 it is very simple in construc- 

 tion, and consequently easy to 

 repair and to operate. We 

 do not mean from all this 



that it will do as good a job as a power sprayer, but it is not 

 a toy, by any means. 



Its shortcomings are (1) that the operator has to be constantly 

 going back to the base of supplies after more spray material; 

 (2) that it is inconvenient to move about; (3) that there is no 

 agitator; and (4) that the pressure runs down quickly. And 

 yet for all this it is entirely adequate for a few trees. 



II. The knapsack sprayer is shown in Figure 77. This is not 

 adapted to very tall trees nor to very large operations, but is 



FIG. 77. Knapsack sprayer. This is an 

 excellent pump for rough ground or where- 

 soever it is difficult to get about, but is rather 

 heavy when one has much spraying to do. 



