A reevaluation of 1978 aerial Bacillus thuringiensis Berliner (Bt) applications for cankerworm control in Siberian elm shelterbelts
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Author
Contributions
- United States. Forest Service. Northern Region. State & Private Forestry. - Contributor
Publication
1979 - Forest Insect & Disease Management, USDA, Forest Service, Northern Region, State & Private Forestry, Missoula, MT, Montana
Language
English
Description
"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 foliage protection for 2 seasons. 4. The 3 gallon/acre Bt formulation appears to provide more consistent foliage protection than the 1 gallon/acre formulation."--Conclusions.
Subjects
Topics
ControlCanker-wormsSiberian elmDiseases and pestsBacillus thuringiensisBacillus thuringiensis -- North Dakota -- Bismarck AreaCanker-worms -- Control -- North Dakota -- Bismarck AreaSiberian elm -- Diseases and pests -- Control -- North Dakota -- Bismarck Area
Places
North DakotaBismarck Area
Series Statement
- Forest insect & disease management
- Report - Forest Service, Northern Region, Forest Insect and Disease Management -- no. 79-18.
- Report (United States. Forest Service. Northern Region) -- no. 79-18.
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