242 PESTS OF ORCHARD AND SMALL FRUITS 
to others in the orchard that 
chance not to be making vig- 
orous growth. Trim back and 
fertilize trees only moderately 
attacked. Apply a coat of 
thick carbolated whitewash in 
early spring, again in June, and 
again in August. Use 1 pint of 
crude carbolic acid to 10 gallons 
of the whitewash. 
Fic. 314.—The Shot Hole Borer. Sec- Fic. 315.—The Shot Hole Borer. 
tion of bark over burrows, showing exit Adult. Enlarged and natural size. 
holes. Original. Original. 
The Peach Bark-beetle 
(Phleophthorus liminaris Harr.) 
Injury is similar to that of the shot 
hole borer. The bark of peach, plum, 
or cherry trees is peppered with many 
small, round holes. If the tree is not 
already too much weakened, consider- 
able gum will flow from these holes. 
Removal of a section of bark will show 
the difference between the work of 
this insect and that of the shot hole 
borer: the main channels made by this 
pest run around the axis of the trunk 
or limb, while those of the shot hole Pies316\— Burrowsaet ihe Peach 
borer run parallel to it. Bark-beetle. Original. 
