Endocronartium harknessii sporulating (aeciospores) on jack pine. Engelhart Management Unit

Endocronartium harknessii sporulating (aeciospores) on jack pine Engelhart Management Unit

White spruce planted 1965 at 5yrs. Black Brook, J.D.Irving. Person: Neils Kreiberg

Roadside pin cherry & balsam fir. Cherry results from disturbance by road construction. Black Brook, J.D.Irving

Planting crew on site (slide #437). N.B. man holding line to ensure trees are planted in straight lines. Black Brook, J.D.Irving

Planting crew on site (slide #437). N.B. man holding line to ensure trees are planted in straight lines. Black Brook, J.D.Irving

Area crushed for planting. Black Brook, J.D.Irving

TBM spray planes at Juniper airport, J.D.Irving

TBM spray planes at Juniper airport, J.D.Irving.

Jackpine in Ontario tube planted 1966, extracted 1970 after 4 yrs N.B. root symmetry & residual tube. Willison Twp. Engelhart Management Unit.