6 



CIRCULAR 2 3 7, U. S. DEPARTMENT OF AGRICULTURE 



a spray containing a poison has been used, this removal must be par- 

 ticularly thorough. 



APPLES 



EARLY APPLES 



The foliage of early-ripening apples may be protected by spraying 

 with 3 pounds of aluminum sulphate and 20 pounds of hydrated lime 

 to 100 gallons of water. In preparing this spray the aluminum sul- 



4 



Figure 6. — Japanese beetles feeding on apple : A, Beetles attacking fruit ; B 3 extent of 



damage. 



phate is dissolved in 2 gallons of water and a thin paste is made of 

 the lime. The aluminum sulphate solution is added to the water in 

 the spray tank while the agitator is running, followed by the 

 hydrated-lime paste. 



