SPRUCE BUDWORM. AND WHITE PINE WEEVIL 155 
ally attack other 
species of pine 
such as the jack 
pine (Pinus 
banksiana Lamb) 
and true pitch 
pine (Pinus ex- 
celsa Link.) 
Plantations of 
Norway spruce, 
especially, are 
often subject to 
great damage— 
second only to 
white pine in this 
respect. Young 
trees from 4 to 20 
feet in height, 
are most subject 
to attack, al- 
though less com- 
monly pines well 
over thirty feet 
high may be in- 
jured by the wee- 
vil. It also shows 
a decided prefer- 
ence for. trees 
growing in plan- 
tations or in open 
stands. Thus it 
is that the most 
noticeable dam- 
- 
. 
_ Load of Logs and Lumberjacks. 
Photo by C. W. Grover. 
age usually occurs in pure plantations of white pine or Norway 
spruce or in the younger volunteer growth in pastures, along the 
borders of woodlands or along roadsides. Where white pine occurs 
under cover in woodlots it is nearly exempt from attack and injury. 
METHODS OF CONTROL. The white pine weevil is best 
controlled by removing the infested leaders and so treating them as 
to destroy the contained grubs and young beetles before they have 
an opportunity to emerge and escape. This is most easily accom- 
plished by burning, and should be done before July 1st. By this 
