o6 
years, weather conditions being favorable. Owing to its very general 
absence in localities formerly infested we have been unable, as we 
did last year, to secure puparia (flaxseeds) in volunteer wheat, show- 
ing the occurrence of an extra brood in this State. Two lots of vol- 
unteer wheat plants, from 8 to 10 inches high, were sent us in Novem- 
ber, one lot from Marshall County and one from Big Stone County, 
in both of which counties the fly was thought to be present. Several 
hundred of these plants were carefully examined, but contrary to last 
year’s experience we found no puparia.¢ 
My attention has not been called directly to the presence of the 
frit-fly (Oscinis soror Macq.) or the wheat-stem maggot (J/eromyza 
americana Fitch) although, from reports of certain ill-defined injury 
to wheat from time to time, we have good reason to suspect that both 
of these are in Minnesota at present. Professor Lugger reported the 
frit-fly as injurious in 1893 and 1896. 
Chinch bugs (Blissus leucopterus Say) have been conspicuous for 
their absence during the year, no injury whatever being reported in 
any county. During the wet weather of last fall I found a large 
number of dead and dying chinch bugs on the station grounds, 
evidently killed by a fungous growth. This condittion, prevailing in 
most of the chinch-bug areas, is possibly, in part, the reason why we 
have been free the past season. 
The Mediterranean flour moth (A’phestia huehniella Zell.), un- 
doubtedly present and increasing in numbers for the past several 
years in Minnesota, has this year made its presence so conspicuous 
in certain mills as to call for some special work on the part of the 
Entomologist, and the publication of a special report on the subject 
for the benefit of the four hundred or more flour mills in Minnesota. 
The leaf-hopper (Empoasca mali LeB.) is becoming more and more | 
evident in nurseries, and causing losses annually. We have done 
some special work against this pest this season, an account of which 
forms the subject of a previous paper. The work is purely prelimi- 
nary, but may prove interesting as illustrating what may be done 
with certain field apparatus. 
The plum curculio (Conotrachelus nenuphar Ubst.) is proving 
itself almost as great a foe to apples in Minnesota as it is to plums, 
and is as much of a pest in this particular as is the codling moth. 
We have been startled by finding the imported willow curculio 
(Cryptorhynchus lapathi Linn.) in poplars shipped from New York 
State with the inspector’s certificate to nurserymen in Minnesota, 
a@ Since the above paper was delivered it has been stated te me by a carefully 
observant entomologist in this State that he found a number of puparia of 
Hessian fly in volunteer barley plants on Thanksgiving Day, 1904.—I*’. L. W. 
