4 Farmers’ Bulletin 1259. 
are usually severe, the part denuded often being killed. Trees not 
killed are frequently infested by secondary enemies which com- 
. 2.—Young scrub pine on edge of woods, completely defoliated by larve of 
Leconte’s sawfly. 
plete the work; and, if by chance the trees recover, they are stunted 
or misshapen and of little or no commercial or ornamental value. 
