SPRAYING MACHINERY 39 



or sluggish, are required for the process. At the end of 30 

 or 40 minutes, if the hot mass is permitted to stand undi- 

 luted as a thick paste, a liquid is produced that is dangerous 

 to peach foliage and in some cases even to apple foliage. 



The mixture should be strained through a sieve of 20 

 meshes to the inch in order to remove the coarse particles 

 of lime, but all the sulphur should be worked through the 

 strainer. 



Hot water may be used to good advantage in preparing 

 the mixture with sluggish lime, but with quick-acting 

 lime hot water is not best. If desired, the mixture may 

 be kept for a week or more without deterioration, but it 

 should be thoroughly stirred before using. 



In applying the self-boiled lime-sulphur wash the spray- 

 ing outfit should be equipped with a good agitator. The 

 agitator of the ordinary barrel sprayer is not usually 

 adequate. 



Combined Bordeaux and Arsenates 



When an insecticide and a fungicide are to be used at 

 the same time, it is usually possible to combine the two, 

 so that only one application is necessary. 



Bordeaux-Paris-green. — To the usual Bordeaux mix- 

 ture Paris green is added at the rate of 5 ounces to each 

 50 gallons of mixture. The other arsenical mixtures, as 

 London purple, arsenate of lead, or arsenite of lime, may 

 also be combined safely with the Bordeaux mixture. 



SPRAYING MACHINERY 



The needs as regards a spraying equipment necessarily 

 vary with the amount of spraying to be done, whether a 



