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Filtering by: Subject Insect surveys -- North Dakota Creator Flavell, Thomas H.

Survey of insect and disease conditions in forests and shelterbelts, North Dakota, 1977

Creator:

Flavell, Thomas H., Tunnock, Scott, Drake, L. E., and United States. Forest Service. Northern Region. State & Private Forestry

Abstract:

Aerial and ground surveys to detect and evaluate forest insect and disease conditions in North Dakota were made during June 1977 by personnel from the U.S. Forest Service, Forest Insect and Disease Management staff and the Rocky Mountain Forest and Range Experiment Station. A forest tent caterpillar outbreak in the...

Resource Type:

Technical Report

Full Text:

to detect and evaluate forest insect and disease conditions in North Dakota were made during June
A survey to evaluate wood borers in green ash windbreaks in North Dakota

Creator:

Flavell, Thomas H., United States. Forest Service. Northern Region. Forest Insect and Disease Management, and United States. Forest Service. Northern Region. State & Private Forestry

Abstract:

Green ash windbreaks in North Dakota were surveyed in 1972 and 1976 to determine the incidence of attacks by the carpenterworm, ash borer, and other stem-infesting wood borers. Windbreaks were stratified by age and geographic region. In 1976, about 3.1 percent of the green ash trees in North Dakota had...

Resource Type:

Technical Report

Full Text:

IN GREEN ASH WINDBREAKS IN NORTH DAKOTA By Thomas H. Flavell 1/, Arden Tagestad, Susan Sladek 2