PRINCIPLES OF SPRAYING 



advisable. These may be summarized as 

 follows : 



1. With lime-sulphur, winter strength, on the 

 dormant wood In early spring. 



2. With lime-sulphur and arsenate of lead 

 just before the blossoms open (may sometimes 

 be omitted). 



3. With the same (or Bordeaux for scab) 

 just after the blossoms fall. 



4. With the same two or three weeks later. 



5. With arsenate of lead eight or nine weeks 

 later (may sometimes be omitted). 



(Tn the south and middle latitudes where bitter rot and 

 apple blotch occur two other sprayings may be necessary.) 



6. With Bordeaux about eight or ten weeks after 

 the blossoms fall. 



7. Again with the same about two weeks later. 



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