Index Catalog // ScholarsArchive@OSU

Start Over

Filtering by: Subject Operophtera -- North Dakota -- Turtle Mountains

Survey of hardwood defoliation in the Turtle Mountains, North Dakota

Creator:

Tunnock, Scott and United States. Forest Service. Northern Region. State & Private Forestry

Abstract:

A looper, probably the Bruce spanworm, Operophtera bruceata (Hulst), defoliated more than 15,650 acres of quaking aspen in the Turtle Mountains of North Dakota in the spring of 1973.

Resource Type:

Technical Report
Potential defoliation by the forest tent caterpillar in the Turtle Mountains, North Dakota during 1979

Creator:

Tunnock, Scott, Hard, John S., Karch, Tom, and United States. Forest Service. Northern Region. State & Private Forestry

Abstract:

The forest tent caterpillar, Malacosoma disstria Hbn., began defoliating trembling aspen stands, Populus tremuloides Michx., in 1976 in the Turtle Mountains of North Dakota. Heavy defoliation was scattered through about 150,000 acres in 1978. Pupal mortality from parasites and disease was almost 100 percent in cocoons on understory shrubs and...

Resource Type:

Technical Report

Full Text:

December 1978 POTENTIAL DEFOLIATION BY THE FOREST TENT CATERPILLAR IN THE TURTLE MOUNTAINS, NORTH DAKOTA