Fruit-growing 251 



Fourth Spraying. 



If apple blotch is prevalent, make a fourth spraying three to four 

 weeks after the third with arsenate of lead and bordeaux mixture, 

 4-4-50. This controls, in addition to the apple-blotch, the codlin- 

 moth, the canker-worm, the leaf-spot, and the apple-scab. 



Fifth Spraying. 



If bitter-rot is prevalent, spray with bordeaux mixture, 4-6-50, about 

 six weeks after the blossoms fall. 



Sixth Spraying. 



Spray eight or nine weeks after the petals fall with bordeaux mix- 

 ture and arsenate of lead. This is for late broods of the codlin-moth 

 and late infections of the apple-scab. Often this spray is omitted, 

 but if fancy fruit is desired the grower will find that the spraying 

 will pay. 



Emergency Sprayings. 



If at any time during the season green aphis appear, spray before the 

 leaves begin to curl, with either of the following : whale-oil soap solu- 

 tion made up of one pound of whale-oil soap to six gallons of water ; 

 a tobacco preparation that contains 2.7 per cent of nicotine diluted 

 with one hundred parts of water, or kerosene emulsion diluted one 

 part of the stock emulsion to seventeen parts of water. The method 

 of making the emulsion is given later. 



Pears 

 First Spraying. 



Just as the leaf -buds are swelling, spray with lime sulfur solution 

 of 1.03 specific gravity with two pounds of arsenate of lead added to 

 each fifty gallons of spray material. This is to combat the San Jose 

 scale and the leaf blister-mite. 



Second Spraying. 



After the leaf-buds are open, but before the first blossoms are open, 

 spray with lime sulfur of 1.006 specific gravity or with bordeaux mix- 

 ture, 4-4-50. This is to combat the pear-scab. 



Third Spraying. 



When the calyxes of the fruit are still open and the petals of the 

 blossoms are still falling, spray with lime sulfur of 1.006 specific gravity 

 with two pounds of arsenate of lead added to each fifty gallons of spray 

 material. This is to combat the codlin-moth, the pear-scab, and other 

 fungous diseases. 



