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Filtering by: Subject Insect surveys -- North Dakota Subject Bacillus thuringiensis -- North Dakota -- Bismarck Area

A reevaluation of 1978 aerial Bacillus thuringiensis Berliner (Bt) applications for cankerworm control in Siberian elm shelterbelts

Creator:

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

Abstract:

1. Defoliation by cankerworms in 1979 was significantly less in 1978 treated shelterbelts than in untreated shelterbelts. 2. Most shelterbelts treated in 1978 retained enough foliage by late June 1979 so that adjacent crops were protected from wind. 3. Aerially applied Bt at a rate of 1/2 lb./acre provided shelterbelt...

Resource Type:

Technical Report

Full Text:

cankerworm 1/ infested shelterbelts near Bismarck, North Dakota, in May 1978 (Hard, et al. 1979). Defoliation