INJURIOUS INSECTS OF 1904. 



101 



this purpose, since if used lint is bound to be carried into the pump 

 and is hkely to bother you by clogging the nozzle. Brass strainers 

 are the best, made to fit the opening through which one pours the 

 liquid. In addition to this, every good pump has a strainer in the 

 lower end of suction pipe or suction hose through which the liquid is 

 drawn into the pump. 



AGITATORS. 



Most pumps — all good pumps 

 — are equipped with agitators 

 which, as a rule, the working of 

 the pump handle keeps in mo- 

 tion. These are generally pad- 

 dles which keep the liquid in the 

 barrel or other receptacle con- 

 stantly stirred. Paris green be- 

 ing heavier than zvater, sinks if 

 the liquid is not kept constantly in 

 motion, the result being that the 

 poison is unevenly distributed, 

 and a part of the tree or a portion of the plant will be injured or killed 



Fig. 100. — Power Sprayer mounted on 

 Wagon. 



Fig. looj^. — Six-row Sprayer in Field. 



