382 Report of the Department of Entomology. 



spraying schedule for the principal insects and diseases of 



the apple. 



First application. — As buds show green at the tips, use lime- 

 sulphur wash at winter strength for San Jose scale and leaf blister- 

 mite. 



Second application. — Just before blossoms open, for apple scab and 

 various leaf-eating insects, use lime-sulphur solution (32° Beaume) 

 diluted with forty parts of water, with two to three pounds arsenate 

 of lead to forty gallons. May be omitted if insects are few and 

 weather is dry. 



Third application. — When blossoms are about two-thirds off, 

 give same treatment as (2). This is the most important spraying 

 for apple scab and codling moth. Should never be omitted. 



Fourth application. — About two weeks later repeat (2) if weather 

 is favorable for apple scab; that is, moist and warm. 



Fifth application. — About first week in August repeat (2) to 

 prevent late infections of apple scab and to control second brood of 

 codling moth. 



