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Peridermium harknessii galls on jack pine.
Peridermium harknessii galls on jack pine. Sapawe
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Peridermium harknessii on jack pine.
Peridermium harknessii on jack pine. N.B. repeated branching. Sapawe
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Pest (budworm) damage on tree needles
Budworm damage on red spruce. Black Brook, J.D.Irving.
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Pest damage in trees
Balsam woolly aphid damage on A. grandis. N.B adjacent hemlock. Shawinigan Division, Macmillan Bloedel.
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Pest damage on red spruce needles
Budworm damage on red spruce. Black Brook, J.D.Irving
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Pest worm eating tree needles
Budworms eating on tips of white spruce. Black Brook, J.D.Irving.
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Petawawa - PNre - normal and fastigiate form (grafts)
Petawawa - PNre - normal and fastigiate form (grafts)
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Peter Gorman - Residence Council
Peter Gorman. Member of the residence council.
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Peter Leeney
A formal portrait photo of Peter Leeney.
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Peter Prior presenting an award to Dr. A.D. Booth.
Peter Prior presenting an award to Dr. A.D. Booth. Dean Kerr and Gary Kunnas observe. Left to Right: Dean Kerr, Peter Prior, Dr. A.D. Booth, Gary Kunnas L.U. Week Vol. 6 #5
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