— 8— 



gallons of water added. By ''slaking of lime" is meant 

 the changing of the rock lime to a lime and water solu- 

 tion. As soon as a little water is added to the lime, it 

 commences to heat and break^ up. Add just enough 

 water to keep the mixture boiling; enough so that the lime 

 will not burn. It is an easy thing to add too little water 

 but it is just as important to avoid adding too much, until 

 after the whole mass has become thoroughly heated and 

 dissolved. The two mixtures of lime and copper sul- 

 phate, twenty-five gallons each, are now ready to be put 

 together. This should be done gradually if possible by 

 allowing the two to flow in a slow stream into a third re- 

 ceptacle, where it can be well shaken, giving a bluish 

 solution called the ''Bordeaux Mixture". 



APPLYING THE SOLUTIONS. 



Proper chemicals and solutions are of little account 

 unless they are properly applied to the plant. A good 

 hand pump mounted on a barrel usually answers the pur- 

 pose, but the commercial orchardist usually likes to have 

 a more powerful machine, and for this reason several 

 power spraying outfits have been devised. All of the 

 working parts of the pump as well as all the parts which 

 come in contact with the liquid should be of brass, since 

 most spray solutions will in a short time destroy iron or 

 other metals of that kind. The barrel or other receptacle 

 to which the pump is attached may be carried in an ordi- 

 nary farm wagon. For spraying apple trees and other 

 orchard fruits the pump should be provided with two 

 leads of one-half inch hose, each twenty-five feet long, and 

 to the end of which is attached a bamboo extension rod. 

 The 'end of this rod should be provided with a double 

 Vermorel nozzle from which is discharged a fine misty 

 spray if the required pressure is given by the operator 

 of the pump. Allow the fine spray to fall oiTlffie leaves 

 and fruit in the form of a mist or dew. Heavy spraying 

 would cause the solution to run off, carrying with it the 

 chemicals. 



