267420 



BIOLOGY OF RUST RESISTANCE IN FOREST TREES: 



PROCEEDINGS OF A NATO-IUFRO ADVANCED STUDY INSTITUTE 



AUGUST 17-24, 1969 



This NATO-IUFRO Advanced Study Institute, Basic Biology and Inter- 

 national Aspects of Rust Resistance in Forest Trees, was supported by 

 the North Atlantic Treaty Organization; the International Union of For- 

 estry Research Organizations; the Forest Service, U. S. Department of 

 Agriculture; and the University of Idaho. 



The Institute was held at the University of Idaho, Moscow, Idaho, 

 U.S.A. 



RICHARD T. BINGHAM, SCIENTIFIC DIRECTOR 

 RAYMOND J. HOFF AND GERAL I. MCDONALD, PROGRAM COORDINATORS 



1ISCELLANEOUS PUBLICATION NO. 1221 



U.S. DEPARTMENT OF AGRICULTURE FOREST SERVICE 



WASHINGTON, D.C. FEBRUARY 1972 



