Hoff, R. J., R. T. Bingham, and G. I. McDonald. 



In press. Relative blister rust of white pines. Eur. J. Plant. Pathol. 

 McDonald, G. I., and R. J. Hoff. 



1970. Resistance to Cronartium ribicola in Pinus monticola: early shedding of 

 infested needles. USDA For. Serv, Res. Note lNT-124, 8 p. Intermt. For. 

 and Range Exp. Stn. , Ogden, Utah. 



McDonald, G. I., and R. J. Hoff. 



1971. Resistance to Cronartium ribicola in Pinus monticola: genetic control of 

 needle-spots-only resistance factors. Can. J. For. Res. 1 (4) : 197-202 . 



McDonald, G. 1., and R. J. Hoff. 



1975. Resistance to Cronartium ribicola in Pinus monticola: an analysis of 

 needle-spot types and frequencies. Can. J. Bot . 53:2497-2505. 

 McDonald, G. I., R. J. Hoff, and W. R. Wykoff. 



In press. Computer simulation of white pine blister rust epidemics: model 

 formulation. USDA For. Serv. Res. Paper INT- . Intermt. For. and Range 

 Exp. Stn., Ogden, Utah. 

 Patton, R. F. and A. J. Riker. 



1966. Lessons from nursery and field testing of eastern white pine selections 

 and progenies for resistance to blister rust, p. 403-414. in Breeding pest 

 resistant trees. H. D. Gerhold and others, eds. Pergamon Press, Oxford, 505 p. 

 Steinhoff, R. J. 



1971. Field levels of infection of progenies of western white pine selected 



for blister rust resistance. USDA For, Serv. Res. Note INT-I46, 4 p. Intermt. 

 For. and Range Exp. Stn., Ogden, Utah, 

 Steinhoff, R. J. 



1979. Variation in early growth of western white pine in north Idaho. USDA 



For. Serv. Res. Pap. INT-222. Intermt. For. and Range Exp. Stn., Ogden, Utah. 



■^rU.S. GOVERNMENT PRINTING OFFICE: 1979. 0. 677. 1 2l/l2S 



13 



