December I, 1922 
Dean W. C. Coffey, 
University Department of Agriculture, 
University Farm, St. Paul, Minnesota. 
Dear Sir: 
In compliance with the law I have the honor to present herewith 
‘a report on the activities of the entomologist for the years ending 
December 1, 1921 and December 1, 1922. A typewritten report was 
given you December 1, 1921, for the year preceding, but as this (1922 
*s the year for the report to be printed I am making the report to 
cover the two-year period. 
The law mentioned states that the entomologist shall make a report 
to the governor. As the legislature of 1921 divided my work, placing 
the regulatory part under the State Commissioner of. Agriculture and 
the experimental and extension part under the University Department 
of Agriculture, I have made two reports, that covering the regulatory 
phase of the work being incorporated in the biennial report of the Com- 
missioner of Agriculture; and the attached report, to be printed as 
the nineteenth report of the entomologist, to the governor. These 
reports have been the outlet for publishing some very valuable data 
on Minnesota insects, and it is believed that the value of the series is 
increasing. Many favorable comments have been received from work- 
ers in entomology throughout the country as well as from those within 
the state. ers, 
The legislature of 1894 and every legislature since, appropriated 
money for the work of the entomologist directly. Up to the fiscal 
year 1921-22 this money has been spent directly by the entomologist. 
As the law of 1921 places the responsibility of the work in the two 
channels mentioned, the funds are now distributed through the State 
Department of Agriculture and the University Department of Agricul- 
ture, respectively. 
A discussion of the principal insect problems of the biennium and 
the financial statement follows: 
Insect problems of the biennium 
The first year of the biennium 1920-21 was very unusual. The 
winter was very mild and consequently more insects than usual were 
. able to pass comfortably through the dormant period. This mild winter 
was followed by a very early spring and a long warm summer. As 
far as insects were concerned conditions were comparable to those 
