1104 THK FKTIT INDUSTRY ix XK\V YOKK STATK 



emergence of the adult at Vounju'stowii, Xc\v York, to be from 

 . I line 12 to August 24. 



There being a lack of knowledge among growers on this point, 

 the writer has secured the following data in the Olcott section 

 over a period of four years : 



1912. Trees located on gravel and stony loam soils. Largest 

 number of borers remained in pupa form between August 3 and 

 August 7, but emerged soon after. 



1913. Larvae were passing evenly into the pupa state through 

 the last half of July and the first half of August. 



1914. Pupae were found in largest numbers in orchards 

 seriously infested on August 6. 



1915. Most of the borers had left or were leaving the pupa 

 case on August 10. On heavier soils no larvae had passed into the 

 pupa state. 



The adults of this species would not be recognized as moths ex- 

 cept by an expert, being wasplike in appearance. The female 

 is an exceedingly active flyer, the greater part of her wings and 

 body being steel-blue in color. She is adorned with a broad, bright 

 orange-colored band across the abdomen (Fig. 350, h). The male is 

 a smaller insect with transparent wings bordered with steel-blue, 

 his body is slender and unadorned but of the same blue color. The 

 males of this species might easily be confused with the adults of 

 the lesser peach borer. 



Quaintance states that from 200 to 300 eggs have been found 

 in the bodies of the females. The eggs are small and yellowish 

 brown. They are deposited on the bark, especially around an exud- 

 ing wound. The eggs soon hatch, and the young larvae enter the 

 bark very largely through the exuding gum from a wound. They 

 will enter, however, directly through the bark just below the sur- 

 face of the ground. 



Control. Many methods have been tried out 'in order to kill 

 the borer or to prevent it from entering the trees. Most of these 

 methods have proved costly and ineffective. No material nor de- 

 vice has been found to destroy the pest, but a few preventive meas- 

 ures are generally adopted in the peach sections of New York. 



1. Between June 15 and July 15, the soil is removed from the 

 crown of the trees and the bark examined with a knife to find and 



