19 



quired 6 to 10 gallons dilute solution per tree per applica- 

 tion. Even for dormant spraying this amount will be neces- 

 sary as a large percentage goes on the ground. In figuring 

 the amount of concentrate needed allow half for the dor- 

 mant spray, (on account of the greater strength of the 

 solution 1-9 or 11) and half for the summer applications 

 (three or four). In general this will require one barrel (50 

 gal.) of concentrate per acre (of 30 trees.) Count on using 

 about 40 pounds of lead per acre. 



Schedule for spraying the apple orchard for sc:b. arid 

 codling' moth, etc. 



Dormant Spray. As the leaf buds begin to show green. 

 Lime-sulfur (32 degrees Beaume) diluted 1 to 8, for San 

 Jose Scale, Oyster Shell Scale and Blister ]\Iite. Add arse- 

 nate of lead 2 lbs. to 50 gal. for Bud Moth and Case Bearer. 



Summer sprays. 



A. As blossom buds begin to show pink. Lime-sulfur 

 (32 degrees Beaume), diluted 1 to 40, for apple scab; add 

 arsenate of lead, two pounds to 50 gallons, for bud moth and 

 case bearers. 



B. As the last of the petals are falling (begin when 

 tAvo-thirds are off) Lime-sulfur (32 degrees Beaume) diluted 

 1 to 40, for apple scab ; add arsenate of lead, two pounds to 

 50 gallons for codling moth. 



This is the most important spray for the control of cod- 

 ling moth and should be thoroughly done, 



C. Three weeks after the petals fall. Lime-sulfur (32 

 degrees Beaume), diluted 1 to 40 for apple scab; add ar- 

 senate of lead, two pounds to 50 gallons, for codling moth. 



D. Last week in July. Lime-sulfur (32 degrees 

 Beaume), diluted 1 to 40, for apple scab, late infection; add 

 arsenate of lead, 2 pounds to 50 gallons, for second brood of 

 codling moth. 



