APPENDIX. 



SPRAYING CALENDAR. 



This spraying calendar is taken almost entirely from Bul- 

 letin 89 of the Iowa Experiment Station, by Prof. S. A. Beach and 

 E. E. Little. The changes made from the original are noted. 



General Treatment For The Apple. 



When to Spray. What to Spray With and What For. 



1. When the green 

 tips of the first leaves 

 burst the buds. May be 

 omitted if insects and 

 scab are not abundant. 



Bordeaux mixture for scab, canker and 

 leaf spot diseases with Paris Green or 

 other arsenical poison for bud moths, 

 case bearers, tent caterpillars, canker 

 worms and other leaf-eating insects. 



2. Just before the blos- 

 soms open. 



Bordeaux mixture for diseases men- 

 tioned under 1. Paris Green or other ar- 

 senical poison for curculio and the in- 

 sects mentioned under 1. The most im- 

 portant single treatment against the scab! 



3. Just after the blos- 

 soms fall. 



Bordeaux mixture for diseases mention- 

 ed under 1. Paris Green or other arseni- 

 cal poison for codlin moth, curculio and 

 leaf eating insects. The most important 

 treatment in fighting codlin moth! 



4. Ten to twenty days 

 after 3. 



Bordeaux mixture for scab, bitter rot 

 and other diseases. Paris Green or other 

 arsenical poison for codlin moth curculio 

 and leaf-eating insects. 



5. Late July or early 

 August. 



Bordeaux mixture for scab, bitter rot, 

 fly speck, sooty blotch and other diseases. 

 Paris Green or other poison for second 

 brood of codlin moth. Important! 



Special treatment early Lime-sulfur wash for oyster shell 

 spring before buds break, scale and other scale insects. 



