INSECTS INFESTING THE PEACH TREE 



127 



Fig. 104. 



with gum. The perfect insect issues during the lattei part of 

 July, or during the month of August. The presence of this 

 borer may easily be detected by the mass of thick gum mixed 

 with the castings of the larva, which accumulates around the 

 opening of its burrow. It usually works in that part of the 

 tree which is at or just beneath the surface of the ground, 

 although it occasionally occurs in the crotches, or upon some 

 other part of the tree. 



Fig. 104.— Peach Tree Borer— color, 

 yellowish. 



The full grown larva (Fig. 104) meas- 

 ures from six to eight lines in length, and 

 is pale yellow, and provided with sixteen legs ; the head is red- 

 dish, marked with black. 



Fig. 105.— Peach Tree Fig. 105, 1. Fig. 105, 2. 



Borer (moths) — colors, 

 steel blue and yellow ; 1, 

 the female moth ; 2, the 

 male moth. 



The perfect insects into 

 which these borers are 

 finally transformed somewhat resemble wasps, being provided 

 with four nearly transparent wings. The female (Fig. 105, 1,) 

 differs so much from the male (Fig. 105, 2,) as to cause her to 

 be mistaken for a distinct species. Her body is of a steel blue 

 color, with a dark orange colored band across the middle of 

 the abdomen ; the fore wings expand about one inch and six 

 lines, and are of a steel blue color ; the hind wings are trans- 

 parent, but are veined and bordered with steel blue. 



The male expands obout one inch ; the wings are transpa- 

 rent, and are bordered and veined with steel blue ; the fore- 

 wings crossed beyond the middle by a band of the same color ; 

 the body is also steel blue, and the edges of the collar and 

 shoulders tufts, as well as two rings on the abdomen, and the 

 brush at the end are pale yellow. 



Remedy.— Use No. 37 in July and August, or No. 98— the 

 latter is preferable. 



