SOLUTIONS FOR SPRAYING 137 



spraying of the year. When lime-sulphur mixture is 

 used for San Jose scale in spring it will take the place 

 of any other spraying before the buds open. In all 

 other cases some solution of copper sulphate should 

 be applied. Bordeaux mixture will serve the pur- 

 pose ; but as this work is to be done before the buds 

 open, the .lime may be omitted. The liquid thus be- 

 comes a plain solution of copper sulphate. The recipe 

 would be about as follows, though the exact propor- 

 tions are not very important:. 



3 pounds copper sulphate 

 50 gallons water 



Simply dissolve the copper sulphate in the water as 

 already directed, page 132, and the solution is ready 

 to apply. 



THE LIME-SULPHUR MIXTURE 



This is doubtless the dirtiest, messiest and nastiest 

 spray mixture yet invented. Perhaps for that reason 

 it is one of the most effective. At any rate it is in- 

 dispensable, at least in the northern states, in fighting 

 San Jose scale. It also serves to kill many other in- 

 sects, as oyster shell bark louse, and moreover has a 

 distinct fungicidal value. When it is used during the 

 spring no further application of bordeaux or other 

 fungicide need be made till the fruit has set. 



Various recipes are given for making the lime- 

 sulphur mixture. The following is the formula used 

 and preferred by the writer : 



16 pounds unslaked lime 



1 6 pounds flowers of sulphur 



50 gallons water. 



In moderate quantities this mixture can best be 

 made in a large iron kettle. To make up the full 



