LETTER OF TRANSMITTAL, 
U. S. DEPARTMENT OF AGRICULTURE, 
Division or ENToMOLOeY, 
Washington, D. C., April 6, 1901. 
Str: I have the honor to transmit herewith for publication an account 
of the more important insect enemies of growing wheat, prepared by 
Mr. C. L. Marlatt, first assistant entomologist. This paper is the 
address, slightly revised, delivered before the Winter Wheat Millers’ 
League, in Chicago, June 13, 1900, and was prepared under my direc- 
tion in response to an earnest request from the secretary of the league, 
Mr. E. E. Perry. As showing the importance of the subject it may 
be stated that the publication of this paper and its general distribu- 
tion among the winter wheat growers of the Mississippi Valley was 
desired by the league, with the view of limiting the losses from insect 
pests, and notably the Hessian fly, the ravages of which last-named 
insect in 1899-1900 so reduced the normal yield of wheat as to seriously 
interfere with the winter wheat milling interests. The paper is a con- 
densed account of the principal insect depredators on growing wheat, 
discussed chiefly from the standpoint of means of control, and as 
covering an important subject and being a valuable aid to the corre- 
spondence of this division its publication as a Farmers’ Bulletin is 
recommended. 
Respectfully, L. O. Howarp, 
Entomologist. 
Hon. JAmEs WILSON, 
Secretary of Agriculture. 
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