Report of Missouri Farmers' Week. 



561 



ciency of spraying in Missouri is more spraying machines, more 

 dilute spray mixtures and more of them, and more time spent with 

 each tree. The difference in efficiency between careful and timely 

 work and careless and indifferent work, or no work at all, in spray- 



Fruit on a sprayed apple tree. 



Fruit on an unsprayed apple tree. 



ing is indicated by the difference in the market value of cider 

 stock and high-grade packing stock. 



APPARATUS. 



The spraying equipment should be consistent with the size of 

 the orchard and whether it consists of a hand pump or a power 

 machine, all working parts that come in contact with the spray 

 mixture, such as the pump plunger, pump packing, pump valves 

 and cut-offs should be kept clean and occasionally oiled to prevent 

 corroding from the liquid and thus interfering with their operation. 



Leaks should not be tolerated 

 in any part of the equipment. If 

 a power machine is used it 

 should be supplied with two sets 

 of nozzles; one set of the 

 Bordeaux type, the other set of 

 the disc type. Bordeaux noz- 

 zles, which make a coarse spray, 

 are of value chiefly in making 

 the first spraying for codling 



Disc nozzle, Bordeaux nozzle, nozzle angle. 



