

U. S. DEPARTMENT OF AGRICULTURE, 



BUREAU OF ENTOMOLOGY— BULLETIN No. 109, Part VI. 



L. O. HOWARD, Entomologist and Chief of Bureau. 



PAPERS ON INSECTS AFFECTING VEGETABLES. 



THE SUGAR-BEET WEBWORM. 



BY 



H. O. MARSH, 



Entomological Assistant. 



Issued September 16, 1912. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE. 



1912. 





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