SPRAViXG AND SPRAYIXG APPARATUS. 131 



62 — Spiay pump with hori- 

 zontal movement. 



QUESTIONS— Chapter VIII. 

 Spraying and Spraying Apparatus. 

 1. What are the advantages and disadvantages of dust spraying? 

 , , ,.-• .,\vhat are tlie important things to be remembered for success- 

 ful luiuid spraying? 



3. By what means can the spraying mixture be kept well mixed 

 In the barrel spray mg outfits? In the tank spraying outfits? 



4. What rnaterials should be used for making the working parts 

 of spray pumps? ^ ^ 

 remed'- d^^^^ causes the clogging of the nozzles and how may it be 



6. What care should be taken in spraying the orchard? 

 /. What spraying outfits are best adapted to small areas? To 

 larga areas? 



