U. S. DEPARTMENT OF AGRICULTURE, 



BUREAU OF ENTOMOLOGY -BULLETIN No. 66, Part IV. 



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



SOME INSECTS LNJUIIIOUS TO TRUCK CROPS. 



THE 



LEAJ'lIOPPiaiS OF THE SUGAR BEET 



AND THEIR RELATION TO THE 

 "CURLY-LEAF" CONDITION. 



BY 



E. rx BALL, Ph. D., 



S/H'cia/ Field A(/ent. 



Issued Jantaky 27, 1909. 



WASHINGTON: 



GOVERNMENT PKINTINO OFFICE. 

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