Cronartium canker in lodgepole pine raised as 2+0 seedlings at the Swastika Nursery and outplanted 1970. Photo after one year in field. Englehart Management Unit

Cronartium canker in lodgepole pine raised as 2+0 seedlings at the Swastika Nursery and outplanted 1970. Photo after one year in field. Englehart Management Unit

Cronartium canker in lodgepole pine raised as 2+0 seedlings at the Swastika Nursery and outplanted 1970. Photo after one year in field. Englehart Management Unit

Aeciospores in lodgepole pine 2+1 transplants at Swastika Nursery, Englehart Management Unit. N.B. seedlings were infected in seed beds

Aeciospores and canker in 50 yr-old natural jack pine. Englehart Management Unit

Aeciospores and canker in 50 yr-old natural jack pine. Englehart Management Unit

Sweetfern blister rust (C. comptoneae) on five year old natural jack pine. N.B. Swelling and aeciospores on stem above root collar. Englehart Management Unit.

Chlorosis of shoots at time of new shoot elongation. Plonski Forest natural stand

Windthrown large hard maple on deep till. N.B. Compactness of root system and lack of deep-going large roots. cf. pine, oak, etc

Pottiputki for planting paper pot container seedlings. Person is David Spicer (Forest technician, U.ofT.)