Bes: DEPART MENT-OF AGRICULTURE 
BUREAU OF ENTOMOLOGY—BULLETIN No. 97, Part III. 
L. O. HOWARD, Entomologist and Chief of Bureau. 
PAPERS ON DECIDUOUS FRUIT INSECTS 
AND INSECTICIDES. 
VINEYARD SPRAYING EXPERIMENTS AGAINST 
THE ROSE-CHAFER IN THE 
LAKE ERIE VALLEY. 
BY 
FRED JOHNSON, 
Agent and Expert, Deciduous Fruit Insect Investigations. 
Issu—eD May 17, 1911. 
WASHINGTON: 
GOVERNMENT PRINTING OFFICE. 
1911. 
