Index Catalog // ScholarsArchive@OSU

A contribution to the biology of the Pseudohylesinus nebulosus (LeConte) (Coleoptera:Scolytidae), especially in relation to the moisture stress of its host, Douglas-fir

Creator:: Stoszek, Karel Josef
Abstract:: The study (1) describes the life cycle of P. nebulosus, (2) examines stimuli that may cause the beetles to locate brood material, and (3) establishes the relationship between moisture stress in Douglas-fir and colonization by P. nebuZosus.and other meristem insects. (1) Development of P. nebulosus goes through the egg stage,...
Resource Type:: Dissertation
Full Text:: , near Philomath. Laboratory work was done at the Forest Entomological Laboratory of the Department of

The effect of competition on the population dynamics of the Douglas-fir beetle, Dendroctonus pseudotsugae Hopk., in Oregon

Creator:: Schmitz, Richard Franklin
Abstract:: The effect of competition on the brood survival of the Douglas fir beetle Dendroctonus pseudotsugae Hopkins, in down or windthrown Douglas-fir Pseudotsuga menziesii (Mirb.) Franco was studied in the field and the laboratory. The investigation of the role of competition in the population dynamics of the beetle had four objectives:...
Resource Type:: Masters Thesis
Full Text:: , Pseudotsuga menziezii (Mirb.) Fran co, the most important timber species of western North America. Hopkins

The effect of cold temperatures on the length of diapause of the spruce budworm (Choristoneura fumiferana (Clem.)

Creator:: Fellin, David G.
Resource Type:: Masters Thesis
Full Text:: The effect of cold temperatures on the length of diapause

A biological and developmental study of Coeloides brunneri Vier. : a parasite of the Douglas-fir beetle, Dendroctonus pseudotsugae Hopk.

Creator:: Ryan, Roger B.
Resource Type:: Dissertation
Full Text:: Vier., A Parasite of the Douglas-Fir Beetle, Bendrocyonus pseudotsugae Hopk. A BIOLOGICAL AND

Insect enemies of Dendroctonus pseudotsugae Hopk. : indentification of their immature stages and distribution in standing trees

Creator:: Kline, LeRoy N.
Abstract:: The objectives undertaken in this study were: 1) to develop means of identifying the immature stages of the known insect predators and parasites of the Douglas-fir beetle; 2) to investigate the possible distribution, spatially and/or temporal, of the known insect predators and parasites in standing trees infested by the Douglas-fir...
Resource Type:: Masters Thesis
Full Text:: in the coniferous forests of western North America. It is an important enemy of many species of

A field approach to study the flight behavior of bark beetle populations (Coleoptera Scolytidae)

Creator:: Gara, R. I. (Robert Imre), 1931-
Resource Type:: Masters Thesis
Full Text:: A field approach to study the flight behavior of bark

The biology of the balsam woolly aphid, Chermes piceae Ratz., in Oregon and Washington and the identification and evaluation of its native predators

Creator:: Mitchell, Russel Gene
Resource Type:: Dissertation
Full Text:: The Biology of the Balsam Woolly Aphid, Chremes Piceae

The flight and olfactory behavior of checkered beetles (Coleoptera cleridae) predatory on the douglas-fir beetle

Creator:: Harwood, Willard Garland
Abstract:: Three coleopterous predators associated with the Douglas-fir beetle (Dendroctonus pseudotsugae Hopkins in a second growth forest of Douglas-fir (Pseudotsugae menziesii (Mirb. ) Franco) in western Oregon are Enoclerus sphegeus Fabriciup, E, lecontei Wolcott, and Thanasirnus undatulus Say. A study was undertaken with the following objectives: (1) to determine the diurnal...
Resource Type:: Masters Thesis
Full Text:: is defined by the Arnerican Society for Testing Materials as, the nonaquous secretion of resin

Some environmental factors influencing rearing of the spruce budworm, Choristoneura fumiferana (Clem.) (Lepidoptera: Tortricidae) under laboratory conditions

Creator:: Pitman, Gary Boyd
Resource Type:: Masters Thesis
Full Text:: Some environmental factors influencing rearing of the

Diurnal and seasonal flight patterns of bark beetles (Coleoptera : Scolytidae) associated with Douglas-fir forests of western Oregon

Creator:: Daterman, Gary E.
Abstract:: The study was undertaken to determine the seasonal and diurnal flight patterns of scolytid beetles inhabiting a second growth forest of Douglas-fir (Pseudotsuga menziesii (Mirb.)Franco) in western Oregon. Air temperatures, relative humidity, light intensity, and wind velocities were recorded for evaluation of their influence on flight activity. The insects were...
Resource Type:: Masters Thesis
Full Text:: (Coleoptera: scolytidae) associated with douglas fir forests of Western Oregon AN ABSTRACT OF THE THESIS OF

ScholarsArchive@OSU

A contribution to the biology of the Pseudohylesinus nebulosus (LeConte) (Coleoptera:Scolytidae), especially in relation to the moisture stress of its host, Douglas-fir

The effect of competition on the population dynamics of the Douglas-fir beetle, Dendroctonus pseudotsugae Hopk., in Oregon

The effect of cold temperatures on the length of diapause of the spruce budworm (Choristoneura fumiferana (Clem.)

A biological and developmental study of Coeloides brunneri Vier. : a parasite of the Douglas-fir beetle, Dendroctonus pseudotsugae Hopk.

Insect enemies of Dendroctonus pseudotsugae Hopk. : indentification of their immature stages and distribution in standing trees

A field approach to study the flight behavior of bark beetle populations (Coleoptera Scolytidae)

The biology of the balsam woolly aphid, Chermes piceae Ratz., in Oregon and Washington and the identification and evaluation of its native predators

The flight and olfactory behavior of checkered beetles (Coleoptera cleridae) predatory on the douglas-fir beetle

Some environmental factors influencing rearing of the spruce budworm, Choristoneura fumiferana (Clem.) (Lepidoptera: Tortricidae) under laboratory conditions

Diurnal and seasonal flight patterns of bark beetles (Coleoptera : Scolytidae) associated with Douglas-fir forests of western Oregon

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

Language

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search