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



are applied at this time. Where the residue on the fruit can be 

 removed by washing or wiping, the treatment given for late apples 

 is recommended. A nonpoisonous spray which has given some pro- 

 tection of early apples under conditions of light infestation is milk 

 of lime from 12 pounds of unslaked lime or 16 pounds of hydrated 

 lime to 100 gallons of water. This spray does not adhere well, how- 

 ever, and is easily washed off by rains. The application should be 

 repeated if necessary. Any deposit, whether poisonous or non- 

 poisonous, must be removed from the fruit if it is to be marketed. 



NONBEARING TREES 



Nonbearing apple trees should be sprayed with 9 pounds of lead 

 oleate coated lead arsenate to 100 gallons of water. This material 

 remains on the foliage for a long time and is not readily washed oif 

 by rains. 



Figure 6. — Sprayed and unsprayed apple trees in an orchard near Moorestown, N. J. 

 Note the new growth on the tree defoliated by feeding of the Japanese beetle 



PEACHES 



YOUNG AND NONBEARING TREES. 



Young and nonbearing peach trees can be protected by thoroughly 

 spraying the foliage not later than July 4 with a mixture of 3 pounds 

 of lead arsenate and the milk of lime from 12 pounds of unslaked 

 lime or 16 pounds of hydrated lime made up to 100 gallons with 

 water. The application should be repeated from two to three weeks 

 later. 



LATE VARIETIES 



As most of the injury to late peaches (Elberta or later varieties) 

 is confined to the foliage, it is necessary to have the leaves espe- 



