SPRUCE BUDWORM AND WHITE PINE WEEVIL 161 
much shorter time by using proper methods of planting, intelli- 
gently devised to combat the pine weevil. Observations made sev- 
eral years ago at the Great Bear Springs Plantation near Fulton, 
N. Y., first suggested that such a system might be possible. Most 
of the pine is there planted in blocks of pure white pine, Scotch 
pine, or Western yellow pine. However, in a small part of the 
plantation a dozen or so rows occur between two larger blocks of 
Scotch pine, and in still another place white pine and Scotch pine 
were planted in alternate rows. When examined, the injury by the 
weevil was serious in all of the blocks of pure white pine, while the 
other species showed no evidence of its attack. In the small block 
of white pine, surrounded by Scotch pine, only a few leaders were 
killed, while in that plot where the two species had been planted 
in alternate rows, no evidence of attack by the weevil was found. 
The two sorts of pine had been planted at the same time, but the 
Scotch pine, on account of its more rapid early growth, had out- 
stripped the white pine and, at the time observations were made, 
was several feet higher. The protection of the white pine from 
beetle attack was probably due either to the higher, denser growth 
of the other species, or possibly the odor of the Scotch pine pre- 
dominated and acted as a deterrent to the weevil. It is probable 
that both factors aided. The higher leaders of the Scotch pine pro- 
tected the white pine by inducing the weevils to alight upon them, 
it being common observation that up to a height of 20 feet, the 
higher leaders in a plantation are more often chosen for ovipositing. 
The weevil, however, having alighted on a Scotch pine, found it 
undesirable for ovipositing and soon sought further. 
It is the belief of the writer that a system of planting white 
pine can be devised which will give a large measure of protection 
to the young trees during the period when they are most suscep- 
tible to weevil injury. However, it will require a number of experi- 
ments carried out over a long period before the best system could 
be decided upon. Several experimental plots are suggested below. 
In all cases the rows should be laid out at right angle to the 
prevailing winds during the active period of the weevil. 
Experimental Plot No. 1.—A plot of a minimum of several acres 
6 ft. x 6 ft. as follows: The center of the plot to be planted with 
alternate rows of Scotch pine and white pine, surrounded by a 
border of at least six rows of Scotch pine, and this in turn sur- 
rounded by another band of at least six rows of pure white pine. 
This outer border of white pine would serve the double purpose of 
