KS 
UNITED STATES DEPARTMENT OF AGRICULTURE 
BULLETIN No. 871 
Contribution from the Bureau of Plant Industry 
WM. A. TAYLOR, Chief 
Washington, D. C. 
PROFESSIONAL PAPER 
November 10, 1920 
THE DRY-ROT OF INCENSE CEDAR 
By 
J. S. BOYCE, Assistant Pathologist 
Office of Investigations in Forest Pathology 
CONTENTS 
Page 
Importance of Incense Cedar .... 1 
Total-Loss Factors 2 
Method of Collecting Data 4 
Secondary Rots 7 
The Dry-Rot 8 
Application of Results ....... 49 
Relative Importance of Dry-Rot . . 49 
Control of Dry-Rot ....... 49 
Summary 55 
Literature Cited 57 
WASHINGTON 
GOVERNMENT PRINITNG OFFICE 
1920 
