6i8 Bulletin 283. 



IV. Ten days to two weeks later. Before rain period : 



a. Lime-suifur, 32° Baurn^ 1-40, or Bordeaux, 3-4—50, for 



Apple- scab 

 Leaf-spot 



b. Arsenate of lead, 2-3 lbs. to 50 gallons, used with lime-sulfur or Bordeaux for 



Codling-moth 

 Canker-worm 



V. Eight to nine weeks after blossoms fall: 



Same as IV for late scab infections and late attacks of codling-moth. In most 

 seasons this application is not necessary. 



If aphis appears, spray before leaves curl with whale-oil soap, i lb. to 6 gallons, or 

 kerosene emulsion diluted with six parts of water, or use one of the tobacco 

 extracts. 



VI. GENERAL PLAN FOR SPRAYING THE PEACH ORCHARD * 



I. Dormant season before the leaf buds begins to swell: 



a. If scale is not to be combated, spray with lime-sulfur, 32° Beaum^ 1-15. 

 or Bordeaux, 4-4-50, or copper sulfate, 2 lbs. to 50 gallons of water, for 



Peach leaf-curl 

 Any of these will be effective if properly applied. Spray from both directions 

 to coat every bud, being sure to apply before buds have begun to swell at all. 



b. Lime-sulfur, 32° Beauin^ i-yf, for 



San Jos^ scale 

 This will also control peach leaf-curl. 



II. About the time the calyces or shucks are shedding from the young fruit: 



a. Self-boiled lime-sulfur, 8-S-50, with arsenate of lead, 2 lbs. to 50 gallons, for 



Scab 



Brown-rot 

 As this is rather early for the scab and rot the self -boiled lime-sulfur may be 

 omitted, using merely 



b. Arsenate of lead, 2 lbs. to 50 gallons of water, for 



Curculio 

 If the self-boiled lime-sulfur is omitted, add to each 50 gallons of water, milk of 

 lime made by slaking 2-3 lbs. of gopd stone lime. This will tend to counteract 

 any caustic action of the arsenate of lead. 



III. Two or three weeks later or about one month after petals fall: 



a. Self-boiled lime-sulfur, S-8-50, for 



Scab 

 Brown-rot 



b. Add 2 lbs. arsenate of lead for 



Curculio 



IV. About one month before fruit ripens: 



a. Self-boiled lime-sulfur, 8—8—50, for 



Brown-rot 



b. Omit arsenate of lead. 



*Taken from U. S. D. A. Bureau of Entomology Circ. 120:6- 



