There is evidence that genetic variation in resistance of lodgepole pine (Pinus contorta Dougl. var. latifolia Engelm.) to comandra rust (Cronartium comandrae Peck) exists (John 2001, 2003). The objective of this research is to rank orchard parents so that custom seedlots with high rust resistance can be produced for deployment on high-risk sites. This project will focus on families in the seed orchard for the Bulkley Valley low-elevation seed planning unit [SPU 17 Pli BV low], at the Vernon Seed Orchard Company. This project addresses Objective 2: To derive optimum production from timber and other forest land assets, Theme 5: Improving timber growth, and Topic 5-5: Better seed sources/species selection.