Issued April 18, 1911. 



U. S. DEPARTMENT OF AGRICULTURE. 



FARMERS' BULLETIN No. 4S3. 



DANGER OF GENERAL SPREAD OF THE GIPSY 



AND BROWN-TAIL MOTHS THROUGH 



IMPORTED NURSERY STOCK. 



C. L. MARLATT, 



ENTOMOLOGIST AND ASSISTANT CHIEF, BUREAU OF ENTOMOLOGY, 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE. 



1911. 



