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Filtering by: Subject Douglas fir -- Testing Creator United States. Forest Service. Northern Region Subject Douglas fir -- Diseases and pests -- Control

Guidelines for implementing direct control tactics against the Douglas-fir tussock moth

Creator:

Dewey, Jerald E. and United States. Forest Service. Northern Region

Resource Type:

Technical Report

Full Text:

THE DOUGLAS-FIR TUSSOCK MOTH • • by Jerald E. Dewey, Supervisory Entomologist When the EPA gave
Evaluation of Douglas-fir mortality from Douglas-fir beetle from 1982 through 1984 following MCH application

Creator:

McGregor, Mark D., Oakes, Robert D., Meyer, Hubert E., and United States. Forest Service. Northern Region

Abstract:

A granular controlled release formulation of 2 percent MCH was applied at 4.48 kg/ha to 76.9 ha of uninfested, windthrown Douglas-fir by helicopter with a modified aerial spreader of 1.12 m capacity in May 1982. Douglas-fir beetle population reduction was 96.4 percent by late June. With one exception, treated plots...

Resource Type:

Technical Report

Full Text:

• EVALUATION OF DOUGLAS-FIR MORTALITY FROM DOUGLAS-FIR BEETLE FROM
Effects of spring applications of dazomet on root diseases and performance of Douglas-fir and western white pine transplants, USDA Forest Service Nursery, Coeur d'Alene, Idaho

Creator:

James, Robert L., United States. Forest Health Protection, and United States. Forest Service. Northern Region

Abstract:

Tests were conducted at the USDA Forest Service Nursery, Coeur d'Alene, Idaho to evaluate effectiveness of spring fumigation with dazomet to improve survival and performance of Douglas-fir and western white pine transplants. Spring fumigation greatly reduced populations of potentially pathogenic Fusarium and Pythium spp. Disease levels of container (plug+1) and...

Resource Type:

Technical Report

Full Text:

OF SPRING APPLICATIONS OF DAZOMET ON ROOT DISEASES AND PERFORMANCE OF DOUGLAS-FIR AND WESTERN WHITE

ScholarsArchive@OSU

Guidelines for implementing direct control tactics against the Douglas-fir tussock moth

Evaluation of Douglas-fir mortality from Douglas-fir beetle from 1982 through 1984 following MCH application

Effects of spring applications of dazomet on root diseases and performance of Douglas-fir and western white pine transplants, USDA Forest Service Nursery, Coeur d'Alene, Idaho

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