1-24 of 158 Books

Day-to-day survival of late-instar western spruce budworm larvae and pupae
By Robert W. Campbell
Population dynamics of the major North American needle-eating budworms
Population dynamics of the major North American needle-eating budworms
By Robert W. Campbell

Deploying pheromone-baited traps for the western spruce budworm and defoliating insects
By David G. Fellin
A pilot experiment of forest fertilization during an outbreak of the western spruce budworm in northeastern Oregon
A pilot experiment of forest fertilization during an outbreak of the western spruce budworm in northeastern Oregon
By Richard R. Mason
Dispersal of second-instar Western Spruce Budworm above and below forest canopies in western Montana
Dispersal of second-instar Western Spruce Budworm above and below forest canopies in western Montana
By Clinton E Carlson

The western spruce budworm dynamics model
By Nicholas L. Crookston
Reldan insecticide field-tested on western spruce budworm, Payette National Forest, Idaho, 1977
Reldan insecticide field-tested on western spruce budworm, Payette National Forest, Idaho, 1977
By George P. Markin
Cooperative western spruce budworm
Cooperative western spruce budworm
By United States. Forest Service. Pacific Northwest Region.

Dispersal of second-instar Western Spruce Budworm above and below forest canopies in western Montana
By Clinton E. Carlson
Recent advances in spruce budworms research
Recent advances in spruce budworms research
By CANUSA Spruce Budworms Research Symposium (1984 Bangor, Me.)
Ground-spray techniques to reduce damage from western spruce budworm
Ground-spray techniques to reduce damage from western spruce budworm
By Lawrence E. Stipe
Deploying pheromone-baited traps for the western spruce budworm and defoliating insects
Deploying pheromone-baited traps for the western spruce budworm and defoliating insects
By David G Fellin

Sampling Western Spruce Budworm larvae by frequency of occurrence on lower crown branches
By Richard R. Mason
Carbaryl applied at reduced dosage rates for control of western spruce budworm
Carbaryl applied at reduced dosage rates for control of western spruce budworm
By George P. Markin
Effects of aerially applied Mexacarbate on Western spruce budworm larvae and their parasites in Montana
Effects of aerially applied Mexacarbate on Western spruce budworm larvae and their parasites in Montana
By Carroll B. Williams
Incidence of western spruce budworm parasites in New Mexico after aerial spraying with carbaryl
Incidence of western spruce budworm parasites in New Mexico after aerial spraying with carbaryl
By J. M. Schmid

Development of western spruce budworm on Douglas-fir callus tissue
By R. C. Beckwith

Influence of overstory removal and western spruce budworm defoliation on growth of advance conifer regeneration in Montana
By Clinton E. Carlson

Sampling populations of western spruce budworm and predicting defoliation on Douglas-fir in eastern Oregon
By V. M. Carolin
Protecting Douglas-fir cones and foliage with a systemic insecticide
Protecting Douglas-fir cones and foliage with a systemic insecticide
By Lawrence E. Stipe
Day-to-day survival of late-instar western spruce budworm larvae and pupae
Day-to-day survival of late-instar western spruce budworm larvae and pupae
By Robert W Campbell
Evaluation of the western spruce budworm problem in British Columbia
Evaluation of the western spruce budworm problem in British Columbia
By British Columbia. Forest Protection Division.

Peroral bioassay of nucleopolyhedrosis viruses in larvae of the western spruce budworm
By Mauro E. Martignoni

Outbreaks of the western spruce budworm in the American northern Rocky Mountain area from 1922 through 1971
By Johnson, Philip C.