Diseases and Pests of the Apple and Their Control 209 



some worms will escape both the poison and the mechanical 

 means of capture and it will, therefore, be necessary to 

 spray for the later broods. 



The following spray schedules are suggested : 



Schedule I (One spray). (1) Calyx spray. 

 Schedule II (Two sprays). (1) Calyx spray. 



(2) 3 to 4 weeks after 1 

 Schedule III (Three sprays). (1) Calyx spray. 



(2) 3 to 4 weeks after 1 



(3) 8 to 10 weeks after 1 

 Schedule IV (Five sprays). (1) Calyx spray. 



(2) 3 to 4 weeks after 1 



(3) 5 to 6 weeks after 1 



(4) 8 to 10 weeks after 1 



(5) 12 to 14 weeks after 1 

 Schedule V (Six sprays). (1) Calyx spray. 



(2) 3 to 4 weeks after 1 



(3) 5 to 6 weeks after 1 



(4) 6 to 7 weeks after 1 



(5) 8 to 10 weeks after 1 



(6) 12 to 14 weeks after 1 



Maine to Connecticut: Frequently schedule I will suf- 

 fice, but if not schedules II or III should be em- 

 ployed. 



New York to Virginia: In some fruit districts within 

 these states schedule I will give satisfactory commer- 

 cial control of the codlin-moth. Where it is more 

 abundant, schedules II or III will be necessary. 



Ohio to Michigan: Usually schedule III will give satis- 

 factory control. 



