REPORT OF THE DEPARTMENT OF ENTO- 
MOLOGY. 
THE TUSSOCK MOTH IN ORCHARDS.* 
W. J. SCHOENE 
SUMMARY. 
During the past summer the white-marked tussock moth 
appeared in destructive numbers in orchards in the vicinity of 
Lockport. In this outbreak considerable damage was done to 
young apple and pear fruits by the caterpillars. 
The tussock moth is not a new insect. It is a well known 
pest of shade trees in cities and towns. Although it may 
thrive on fruit trees it seldom appears in destructive numbers 
in orchards. 
The insect may be efficiently controlled by collecting and 
destroying the egg masses and by the use of arsenical sprays. 


* A reprint of Bulletin No. 312. 
[403] 
