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Spruce budworm
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Transparency showing the area severely infested by the spruce budworm 1909-1981 (in millions of h...
Transparency showing the area severely infested by the spruce budworm 1909-1981 (in millions of hectares)
Transparency map showing areas of spruce budworm infestation in eastern Canada, 1981
Transparency map showing areas of spruce budworm infestation in eastern Canada, 1981
Spruce budworm population In Nova Scotia, 1985 : [report]
Spruce budworm population In Nova Scotia, 1985 : [report]
Research notes and annotated drafts of The Enemy Above, an article on the aerial spraying of insecticides in New Brunswick to combat spruce budworm, published in Harrowsmith
Research notes and annotated drafts of The Enemy Above, an article on the aerial spraying of insecticides in New Brunswick to combat spruce budworm, published in Harrowsmith
"Protection Against Spruce Budworm"
"Protection Against Spruce Budworm"
Photographs of the destruction caused at Point Pleasant Park, Halifax, Nova Scotia, by the Brown Spruce longhorn beetle
Photographs of the destruction caused at Point Pleasant Park, Halifax, Nova Scotia, by the Brown Spruce longhorn beetle
Photographs of recovery from Spruce budworm in Cape Breton Highlands National Park
Photographs of recovery from Spruce budworm in Cape Breton Highlands National Park
Photographs of clearcutting and reforestation in Fundy National Park and Irving spruce plantations, New Brunswick
Photographs of clearcutting and reforestation in Fundy National Park and Irving spruce plantations, New Brunswick
Photograph showing woodpecker excavation of spruce budworm from tree trunk, Point Pleasant Park, ...
Photograph showing woodpecker excavation of spruce budworm from tree trunk, Point Pleasant Park, Halifax, Nova Scotia
Photograph showing woodpecker excavation of spruce budworm from tree trunk, Point Pleasant Park, ...
Photograph showing woodpecker excavation of spruce budworm from tree trunk, Point Pleasant Park, Halifax, Nova Scotia
Photograph showing size scale of spruce budworm exit hole
Photograph showing size scale of spruce budworm exit hole
Photograph showing severe resinosis in spruce budworm-infested tree
Photograph showing severe resinosis in spruce budworm-infested tree
Photograph showing resin flow under a full canopy, Point Pleasant Park, Halifax, Nova Scotia
Photograph showing resin flow under a full canopy, Point Pleasant Park, Halifax, Nova Scotia
Photograph showing larval galleries of spruce budworm in Picea rubens
Photograph showing larval galleries of spruce budworm in Picea rubens
Photograph showing Canadian Forest Service rearing chambers
Photograph showing Canadian Forest Service rearing chambers
Photograph of underside canopy browning of a tree in Point Pleasant Park, Halifax, Nova Scotia
Photograph of underside canopy browning of a tree in Point Pleasant Park, Halifax, Nova Scotia
Photograph of timber piles in Point Pleasant Park, Halifax, Nova Scotia
Photograph of timber piles in Point Pleasant Park, Halifax, Nova Scotia
Photograph of the stump of a spruce budworm damaged tree in Point Pleasant Park, Halifax, Nova Sc...
Photograph of the stump of a spruce budworm damaged tree in Point Pleasant Park, Halifax, Nova Scotia
Photograph of Tetropium fuscum (Brown spruce longhorn beetle) tunnels in a recently downed tree i...
Photograph of Tetropium fuscum (Brown spruce longhorn beetle) tunnels in a recently downed tree in Point Pleasant Park, Halifax, Nova Scotia
Photograph of Tetropium fuscum (Brown spruce longhorn beetle) larval galleries and pupal chambers...
Photograph of Tetropium fuscum (Brown spruce longhorn beetle) larval galleries and pupal chambers under bark of an infested tree
Photograph of Tetropium fuscum (Brown spruce longhorn beetle) exit holes, Point Pleasant Park, Ha...
Photograph of Tetropium fuscum (Brown spruce longhorn beetle) exit holes, Point Pleasant Park, Halifax, Nova Scotia
Photograph of Tetropium fuscum (Brown spruce longhorn beetle) adult on a red spruce, Point Pleasa...
Photograph of Tetropium fuscum (Brown spruce longhorn beetle) adult on a red spruce, Point Pleasant Park, Halifax, Nova Scotia
Photograph of stored pulpwood, Highlands Road, Cape Breton
Photograph of stored pulpwood, Highlands Road, Cape Breton
Photograph of stored pulpwood, Highlands Road, Cape Breton
Photograph of stored pulpwood, Highlands Road, Cape Breton
Photograph of stored pulpwood, Highlands Road, Cape Breton
Photograph of stored pulpwood, Highlands Road, Cape Breton
Photograph of stored pulpwood, Highlands Road, Cape Breton
Photograph of stored pulpwood, Highlands Road, Cape Breton
Photograph of stored pulpwood, Highlands Road, Cape Breton
Photograph of stored pulpwood, Highlands Road, Cape Breton
Photograph of spruce budworm-killed forest in Cape Breton Highlands National Park
Photograph of spruce budworm-killed forest in Cape Breton Highlands National Park
Photograph of spruce budworm-killed forest in Cape Breton Highlands National Park
Photograph of spruce budworm-killed forest in Cape Breton Highlands National Park
Photograph of spruce budworm-killed forest in Cape Breton Highlands National Park
Photograph of spruce budworm-killed forest in Cape Breton Highlands National Park
Photograph of spruce budworm-killed forest in Cape Breton Highlands National Park
Photograph of spruce budworm-killed forest in Cape Breton Highlands National Park
Photograph of spruce budworm-killed forest in Cape Breton Highlands National Park
Photograph of spruce budworm-killed forest in Cape Breton Highlands National Park
Photograph of spruce budworm salvage cuts, Highlands Road, Cape Breton
Photograph of spruce budworm salvage cuts, Highlands Road, Cape Breton
Photograph of spruce budworm salvage cuts in Cape Breton
Photograph of spruce budworm salvage cuts in Cape Breton
Photograph of spruce budworm salvage cuts in Cape Breton
Photograph of spruce budworm salvage cuts in Cape Breton
Photograph of spruce budworm emerging from tree
Photograph of spruce budworm emerging from tree
Photograph of spruce budworm damaged trees, Point Pleasant Park, Halifax, Nova Scotia
Photograph of spruce budworm damaged trees, Point Pleasant Park, Halifax, Nova Scotia
Photograph of spruce budworm aftermath, Highlands Road, Cape Breton
Photograph of spruce budworm aftermath, Highlands Road, Cape Breton
Photograph of spruce budworm aftermath, Highlands Road, Cape Breton
Photograph of spruce budworm aftermath, Highlands Road, Cape Breton
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
Photograph of spruce budworm aftermath in Cape Breton Highlands National Park
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