LETTER OF TRANS MV 
Unirep States DerartMENT OF AGRICULTURE, 
Bureau or Entomoxocy, 
Washington, D.C., April 19, 1913. 
Sir: I have the honor to transmit for publication as a Farmers’ 
Bulletin a brief account of the common white grubs. 
A thorough study of the white-grub problem throughout the 
United States has recently been undertaken by the Bureau of Ento- 
mology, cooperating with the office of State entomologist of Illinois, 
and with the further aid of the Indiana Agricultural Experiment 
Station and Purdue University. As this investigation has only fairly 
begun, the present publication is in no sense a report, but is merely 
intended to give a brief summary of the life history and habits of 
these insects, as now understood, together with the best known means 
of controlling them. The bulletin has been prepared with special ref- 
erence to the destructive outbreak of 1912 and the seemingly strong 
probabilities of a similar infestation in 1915. 
This subject is of the greatest importance to farmers, whose coop- 
eration is much needed in carrying out the work and securing prac- 
tical results therefrom. ; 
Respectfully, L. O. Howarp, 
: Entomologist and Chief of Bureau. 
Hon. D. F. Houston, 
Secretary of Agriculture. 
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