GIPSY MOTH TREE-BANDING MATERIAL. 17 
however, that in the treated trees a greater infestation above the 
bands was present than in the check lot. It is probable that the 
larvae were repelled by the material, consequently they entered the 
tree above ground. As to the fate of these larvae that enter the tree 
above ground, I am not certain. I am of the opinion, however, that 
many and probably all of them will be killed by winter conditions." 
The peach-tree borer is not a pest of first importance in Massa- 
chusetts, and the experiments conducted on peach trees by the writers 
consisted mainly of banding the trees and noting the effect on the 
bark, the vigor of the trees, and the fruiting. Trees of from 1 to 15 
years of age were banded and under observation from 1 to 4 years, 
and no material injury was noted as a result of the bands. 
Observations were also made on a number of species of larvae 
found in woodlands where bands were applied. The following 
species of larvae were barred or ventured into the bands and were 
unable to free themselves : 
Gipsy moth (PortJietria dispar L.). 
Brown-tail moth (Euproctis chrysorrhoea L.). 
White-marked tussock moth {Hemerocampa leucostigma S. & A.). 
Rusty tussock moth (Notolophus antiqua L.). 
Forest tent caterpillar (MaTucosoma dis stria Hbn.). 
Checkered tussock (Halisidota tessellaris S. & A.). 
Fall web worm {Hypliantria cunea Dru.). 
American silkworm (Telea polyphemus Cram.). 
Fall cankerworm (AlsopJiila pometaria Harr.). 
Spring cankerworm (Paleacrita vernata Peck.). 
Snow-white linden moth (Ennomos subsignarius Hbn.). 
Ashen pinion (Xylina antennata Walk.). 
There were also some other species of geometrid, noctuid, tortricid, 
and tenthredinid larvae that were barred by these bands. 
Some other species were inclosed in trays at the laboratory con- 
taining bands of gipsy moth tree-banding material at the top and 
their behavior observed for a period. The following species were 
barred, or upon venturing into the bands were unable to free them- 
selves from it : 
Salt marsh caterpillar (Estigmene acraea Dru.). 
Green clover worm (Plathypena scabra Fab.). 
Red-humped apple caterpillar (Schizura concinna S. & A.). 
Milkweed butterfly (Euchaetias egle Dru.). 
Saddled prominent (Heterocampa gidtivitta Walk.). 
Tent caterpillar (Malacosoma americana Fab.). 
CONCLUSIONS AND RECOMMENDATIONS. 
For control of the gipsy moth and several other species of tree- 
foliage-feeding caterpillars with similar habits, gipsy moth tree- 
banding material may be used to great advantage. The cost of mak- 
