sap eErPARTMENT- OF AGRICULTURE, 
BUREAU OF ENTOMOLOGY—BULLETIN No. 97, Part I. 
L. O. HOWARD, Entomologist and Chief of Bureau. 
PAPERS ON DECIDUOUS FRUIT INSECTS 
AND INSECTICIDES. 
SPRAYING EXPERIMENTS AGAINST THE 
GRAPE LEAFHOPPER IN THE 
LAKE ERIE VALLEY. 
BY 
FRED JOHNSON, 
Agent and Expert. 
Issu—EpD Marcu 31, 1911. 
WASHINGTON: 
GOVERNMENT PRINTING OFFICE. 
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