154 



FARM AND SCHOOL PROBLEMS. 



Spray Calendar. 



APPLES. 



Blotch, bitter rot. 



Ammoniacal Copper 

 Carbonate. 



5th Spraying. 

 Two weeks and if need- 

 ed also four weeks 

 later than 4th spray- 

 ing. 



* BORDEAUX MIXTURE. Copper sulfate (blue vitriol) 3 pounds 

 Quicklime (not air slaked} 3 pounds. (Of dry air slaked lime or 

 hydrate of lime one-fourth more.) Water to make 50 gallons. 



