UNITED STATES DEPARTMENT OF AGRICULTURE 
•' 
DEPARTMENT BULLETIN No. 1474 
Washington, D.C. ▼ March. 1927 
CITRUS MELANOSE AND ITS CONTROL 
JOHN R. WINSTON, formerly Associate Pathologist 
JOHN J. BOWMAN and WALTER J. BACH, Junior Pathologists 
Office of Fruit Diseases, Bureau of Plant Industry 
CONTENTS 
P.ge 
Introduction 1 
Description of the Disease 2 
Diseases Confused with Melanose 3 
Historical Review 4 
Species and Varieties Attacked • 1 
Geographical Distribution 10 
Economic Importance 11 
The Causal Organism ♦ 14 
Experiments for Melanose Control 29 
Summary '• 60 
Literature Cited 61 
UNITED STATES 
GOVERNMENT PRINTING OFFICE 
WASHINGTON 
1927 
