UNITED STATES DEPARTMENT OF AGRICULTURE 



BULLETIN No. 730 . 



Contribution from the Bureau of Entomology 

 L. O. HOWARD, Chief 



Washington, D. C. 



PROFESSIONAL PAPERS 



December 24, 1918 



PAPERS ON DECIDUOUS-FRUIT 



INSECTS 



I. THE GRAPE CURCULIO 

 II. THE GRAPE ROOT-BORER 



By FRED E. BROOKS 



Entomologist 

 Deciduou3-Fruit Insect Investigations 



IH. EXPERIMENTS IN THE CONTROL OF 

 THE ROOT FORM OF THE WOOLLY 

 APPLE APHIS 



By B. R. LEACH 



Scientific Assistant 

 Deciduous-Fruit Insect Investigations 



WASHINGTON 

 GOVERNMENT PRINTING OFFICE 



1918 



