INSTITUTION LIBRARIES 
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the general methods of forest management which will bring about 
unfavorable conditions for injury and thus prevent loss. 
It will also be seen how important it is to know the principal facts . 
in regard to the life history and habits of the insect, in order to secure 
the best results from methods of management and of direct control. 
Heretofore this species has been confused with another species with 
very different habits, and some of the published data and recommen- 
dations based on such confusions are of no value. 
The white-pine weevil rarely, if ever, passes the winter in the termi- 
nals. The present evidence indicates that it never breeds in the thick 
bark on the trunks and stumps of the white pine or other pines; thus 
it can not be trapped in the trunks of felled and girdled pine. 
DESTRUCTION OF THE BROODS. 
The only practical method of destroying the weevil appears to be the 
treatment of the infested terminals, and to secure the best results spe- 
cial attention must be given to certain important details. 
If the infested terminals are cut or broken during June and July and 
burned, the broods of the weevil will be effectually destroyed, but vast 
numbers of. natural enemies will also be destroyed. A better method 
is to collect the terminals during the first half of July-before the beetles 
begin to emerge and to place them in tight barrels securely covered 
with wire fly-screen netting on one or both ends (see fig. 6). The bar- 
rels should be left in the groves, so that the parasites and other 
enemies may escape, while the beetles perish. After the 1st of October 
the weevils will all be dead, and the netting may then be removed, 
although the barrels with their contents should be left until the follow- 
ing June to allow the escape of the later developing and larger parasites. 
The barrel should not be placed in a position to collect rain. It is 
necessary, however, if this method be adopted, that it be repeated two 
or three years in succession in the same locality, in order to catch the 
successive broods from the old parent beetles that live over from pre- 
ceding years. 
NOTE. 
The statements and recommendations in this circular are based on recent 
observations and investigations by the author and by Field Assistant W. F. Fiske, 
and serve as a partial revision of what has hitherto been published. 
Approved: 
JAMES WILSON, 
Secretary of Agriculture. 
WASHINGTON, D. C., May 21, 1907. 
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