252 Effective Farming 



Fourth Spraying. 



From ten days to two weeks after the third spraying, spray again, 

 using the same kind of mixture. This is to combat the codlin-moth and 

 the pear-scab. 



Emergency Sprayings. 



If the pear psylla is present in the locality, spray just after the 

 blossoms fall with kerosene emulsion, whale-oil soap, or a tobacco prep- 

 aration, using the same dilutions as given for the emergency spraying 

 of apples. Repeat the spraying at intervals of three to seven days 

 until the pest is under control. 



If the green aphis appear, spray as directed for the control of this 

 pest on apple trees. 



Peaches 

 First Spraying. 



During the dormant season, before the buds open, spray with lime 

 sulfur solution of a specific gravity of 1.03. This is to combat the San 

 Jose scale and the peach leaf -curl. 



Second Spraying. 



Just after the petals fall, spray with arsenate of lead at the rate of 

 one and one-half pounds of the paste to fifty gallons of water. This 

 is to combat the curculio. Usually this spray may be omitted. 



Third Spraying. 



As the calyxes of the fruit are shedding, spray with arsenate of lead, 

 one and one-half pounds, and lime, three pounds, to fifty gallons of water. 

 This is to combat the curculio, the scab, and the brown-rot. 



Fourth Spraying. 



Three weeks after the third spraying, spray with self-boiled lime 

 sulfur made in the proportion of eight pounds of lime and eight pounds 

 of sulfur to fifty gallons of water. This is to combat the scab and the 

 brown-rot. 



Fifth Spraying. 



Four weeks before the fruit is expected to ripen, spray with self- 

 boiled lime sulfur. This is to combat the scab and the brown-rot. 

 Early varieties of peaches will not require this spraying. 



Plums 

 First Spraying. 



Just before the buds open, spray with lime sulfur solution of a spe- 

 cific gravity of 1.03. This is to combat the San Jose scale. 



