UNITED STATES DEPARTMENT OF AGRICULTURE 
In Cooperation with (he University of Wisconsin 
and the Wisconsin Department of Agriculture 
DEPARTMENT BULLETIN No. 1451 
Washington, D. C. 
December, 1926 
METHODS OF ERADICATING THE COMMON BARBERRY 
(BERBERIS VULGARIS Li * JAN 1 5 
By 
t 
NOEL F. THOMPSON, Associate Pathologist, Office of Cereal Crops and Diseases, Bureau of 
Plant Industry, and W. W. BOBBINS, Associate Professor of Botany, University 
of California, Collaborator, and formerly Botanist, Office of Cereal 
Crops and Diseases, Bureau of Plant Industry 
CONTENTS 
P. t e 
Introduction 1 
The Common Barberry Plant .......................... 2 
Mechanical Methods of Eradication 5 
Chemical Methods of Eradication 10 
General Summary ' ..43 
Literature Cited 45 
WASHINGTON 
GOVERNMENT PRINTING OFFICE 
1926 
