The Peach-Tree Borer. 



181 



shown the work of a single borer, with part of the resulting 

 gnuin]j mass, ^, just above. Usually the borers confine their 

 destructive work to the trunk or roots of the tree a short distance 

 below the surface of the soil ; sometimes one is found in a root six 

 or eight inches underground. Occasionally, however, a borer is 

 found in the trunk above 

 ground. We found one borer 

 working in a large root-gall 

 on a peach tree. 



Our observations indicate 

 that in most years the peach- 

 tree borer does more feeding, 

 and is thus more destructive, 

 in the spring than in the pre- 

 ceding autumn in New York ; 

 this is doubtless also true in 

 most J^orthern States and in 

 Canada. As the borers begin 

 feeding about May 1st, it is 

 during May and June that 

 the peach-tree borer gets in 

 its most destructive work in 

 the North; in Canada appar- 

 ently much feeding is also 



done in the iirst half of July. ^_j^ork of a ftingle borer in a peach tree, 

 The above statements are mdural size; w b, burrow of boiler ; 



based somewhat upon data S' ^^^'^"^^ '''^'' ^' P' ^^^^^ projecting 



from cocoon. 

 furnished by the following 



table which has been com])iled from our " digging-out " records and 

 those of Mr. Burrell in Canada. 



largely upon the plant juices." It may be that the borers do get much of their 

 food from the juices which exude from the wounds they make with their jaws, 

 thus necessitating their making a comparatively small burrow, but from what we 

 have seen of their work we do not reach such a conclusion. 



