The slow growth and long generation time of the fiveneedle pines have historically enabled these trees to persist on the landscape for centuries, but without sufficient regeneration opportunities these same traits hinder the species’ ability to adapt to novel stresses such as the exotic disease white pine blister rust (WPBR). Increasing the frequency of resistance to WPBR is the foundation for options to sustain five-needle pine species in the presence of the pathogen Cronartium ribicola. The objective of management intervention in the high elevation ecosystems is to promote pine population resilience for many generations (Schoettle and Sniezko 2007; Schoettle et al. 2012). However, greater understanding of the regeneration cycle and the potential for increasing the frequency of resistance are needed. This is especially critical for the WPBR pathosystem as WPBR kills trees of all ages and therefore affects multiple stages of the regeneration cycle.