110 
NOTES OF THE YEAR. 
The Canker-worm— Anisopteryx vernata —Peck. 
Fig. 24 
3 
The Canker-worm in its various stages : a Egg-mass ; b eggs magnified ; c the caterpillar or larva * 
d cocoon ; e chrysalis or pupa removed from the cocoon ; / male moth ; g female moth. 
The Canker-worm has appeared in Northern Illinois during the 
past season, and has been the means of doing considerable damage to 
the various orchards. In Peoria county I have observed them to a 
limited extent for the past two years, but all the precautions urged 
were neglected, and the increase has been rapid until the orchardists 
realized the extent of damage these insects were capable of commit¬ 
ting. The plan of plowing the ground after the worm had entered, 
and turning in hogs to destroj" the chrysalids, was resorted to in an 
orchard.of over three thousand trees, but partially failed because of 
the limited number of animals. In this particular orchard many 
hundred trees have died from the effects of the worms; and the remedy 
of applying the. rope and tie bands to the trunk of the tree, thus en¬ 
trapping the wingless females when ascending the tree, as recom¬ 
mended by Dr. Le Baron in his second Illinois report, was urged and 
complied with, and, it is hoped, with favorable results. 
The Tent Caterpillars. 
The Tent Caterpillars have been unusually plentiful, those infest¬ 
ing the apple orchards and forest trees. The apple tree Tent Cater¬ 
pillar Clisiocampa Americana , Harris, has been treated of so fully in 
both agricultural papers and State reports, together with the remedies 
for destruction, that their presence in an orchard speaks only of care¬ 
less neglect. 
