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UNITED STATES DEPARTMENT OF AGRICULTURE 
DEPARTMENT BULLETIN No. 1476 
Washington, D. C. 
February, 1927 
A PROGRESS REPORT ON THE INVESTIGATIONS 
OF THE EUROPEAN CORN BORER 
D. J.CAFFREY, Entomologist in Charge, Corn Borer Investigations, and 
L. H. WORTHLEY, Administrator in Corn Borer Control, Bureau of Entomology 
CONTENTS 
Page 
Inception and Scope of the Work 1 
Systematic History and Synonymy 2 
Distribution 4 
Probable Manner of Importation 13 
Host Plants IS 
Character of Injury 24 
Extent of Injury and Economic Loss 41 
Description . 71 
Seasonal History 74 
Life History 86 
Larral Habits 90 
Pupation 103 
Adult Habits 104 
Dispersion 117 
Natural Enemies 134 
Disease 141 
Control and Quarantine 141 
Literature Cited 143 
Supplement 147 
WASHINGTON 
GOVERNMENT PRINTING OFFICE 
1927 
