Author: William F. McCambridgePublisher:
ISBN:
Category : Arapaho National Forest
Languages : en
Pages : 56
Book Description
Engelmann Spruce Beetle Survey Routt, Arapaho, and White River National Forests, Colorado
Author: William F. McCambridgePublisher:
ISBN:
Category : Arapaho National Forest
Languages : en
Pages : 56
Book Description
Engelmann Spruce Beetle Conditions, Routt, Arapaho, and White River National Forests, Colorado, 1952
Author: Fred Barrows KnightPublisher:
ISBN:
Category : Engelmann spruce
Languages : en
Pages : 36
Book Description
Engelmann Spruce Beetle Conditions, Routt, Arapaho, and White River National Forests, Colorado, 1953
Author: Fred Barrows KnightPublisher:
ISBN:
Category : Engelmann spruce
Languages : en
Pages : 22
Book Description
Biology and Control of the Engelmann Spruce Beetle in Colorado
Author: C. L. MasseyPublisher:
ISBN:
Category : Engelmann spruce beetle
Languages : en
Pages : 40
Book Description
Spruce Beetle in the Rockies
Author: J. M. SchmidPublisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 44
Book Description
This report summarizes the literature on the spruce beetle in the western United States, primarily in the Rocky Mountains. Information is presented on life history and behavior, host relationships, mortality agents and impacts of infestations. A section on suppression details the current status of chemicals, pheromones, trap trees and silvicultural treatments. The initial steps in managing spruce beetle populations are stated in the final section on beetle management policy.
Research Note
Author: Cooperative Economic Insect Report
Author: Trees
Author: United States. Department of AgriculturePublisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 982
Book Description
Seasonal Variations of Crude Protein and Phosphorus in Four Range Plants Used for Reseeding
Author: Ralph W. MonkPublisher:
ISBN:
Category : Herbaceous plants
Languages : en
Pages : 272
Book Description
Author: