Index Catalog // ScholarsArchive@OSU

Effects of single and simultaneous challenges using DDT and a nuclear polyhedrosis virus against the variegated cutwork, Peridroma saucia (Hübner)

Creator:: Harper, James Douglas
Abstract:: A study of mortality, food consumption, food utilization, and polyhedral production following single and simultaneous challenges of the variegated cutworm, Peridroma saucia (Hubner), with DDT and a nuclear polyhedrosis virus was made. Fourth instar larvae were challenged topically with three levels of DDT and per os with three levels of...
Resource Type:: Dissertation
Full Text:: value: Dr. Clarence G. Thompson, Entomologist, United States Forest Service, for his advice and

Integration of microbial and chemical controls against codling moth, Cydia pomonella (L.) : laboratory and field evaluation

Creator:: Bajwa, Waheed Ibrahim
Abstract:: The feasibility of managing codling moth, Cydia pomonella (L.), with mixtures of Bacillus thuringiensis-based microbial and selected chemical insecticides was studied under laboratory and field conditions. Joint actions (synergism, additivity and antagonism) of these mixtures were determined for both egg and larval stages. Higher rates of microbial control agents (MCAs),...
Resource Type:: Dissertation
Full Text:: ). Laboratory and field tests against agricultural and forest pest have shown that the amount of chemical

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:: , Chief, Division of Forest Insect Research, Pacific Northwest Forest and Range Experiment Station, for

Habitat associations of riparian beetles (Coleoptera) at Big Beaver Creek Research Natural Area, North Cascades National Park, Washington

Creator:: LaBonte, James R.
Abstract:: Beetle diversity and habitat associations of five prevalent riparian plant communities were examined along the lower reaches of Big Beaver Creek Research Natural Area, North Cascades National Park, Washington. These communities were defined by dominant tree species, and included Alder Swamps, Cedar-Hemlock Forests, Douglas-fir Forests, Gravel Bars, and Willow-Sedge Swamps....
Resource Type:: Masters Thesis
Full Text:: Beetles (Coleoptera) at Big Beaver Creek Research Natural Area, North Cascades National Park, Washington

Digonichaeta setipennis Fall : a Tachinid parasite of the European earwig, with a study of its introduction, biology and laboratory methods used in rearing in Oregon

Creator:: Dimick, Roland Eugene, 1900-
Resource Type:: Masters Thesis
Full Text:: the European earwig, with a study of its introduction, biology and laboratory methods used in rearing

The macroheterocera (lepidoptera) of a mixed forest in western Oregon

Creator:: McFarland, Anthony Noel
Resource Type:: Masters Thesis
Full Text:: Forest, five miles northwest of Corvallis, Benton County, Oregon was conducted. Three hundred sixty

The biologies of predators (Coleoptera: Cleridae) of the Douglas-fir beetle, Dendroctonus pseudotsugae Hopkins (Coleoptera : Scolytidae), in western Oregon

Creator:: Cowan, Bruce Dudley
Abstract:: Six species of Cleridae, including Enoclerus spegeus Fabricius, E. lecontei Wolcott, E. schaefferi (Barr), E. eximius Mannerheim, Thanasimus undatulus Say, and an undescribed species of Enoclerus, were found on Douglas-fir in western Oregon. E. sphegeus was the only clerid of the six species studied which was primarily associated with the...
Resource Type:: Masters Thesis
Full Text:: up to nearly a year and a half in the laboratory. E. lecontei adults emerged throughout the

Soil arthropods in the Central Cascades : slash burning effects and biology of some species

Creator:: Estrada-Venegas, Edith G
Abstract:: Despite the recognized role of soil arthropod fauna on nutrient cycling and decomposition processes, many aspects of the effects of sylvicultural methods in forest ecosystems upon their biology remain poorly understood. The long term effects of prescribed fires on soil arthropods in forest ecosystems in the Pacific Northwest have never...
Resource Type:: Masters Thesis
Full Text:: soil fauna to long-term forest productivity in temperate and boreal ecosystems: processes and research

Correlation between structural heterogeneity and arthropod biodiversity : implications for management of Pacific Northwest forests

Creator:: Madson, Stephanie Lee
Abstract:: The "old-growth controversy" in the Pacific Northwest recognized thinning as the primary silvicultural practice for land managers to produce wildlife habitat while continuing to produce timber. For the foreseeable future, forest stands will be harvested to produce forest gaps and a patchwork of trees of different ages. In order to...
Resource Type:: Masters Thesis
Full Text:: produce timber. For the foreseeable future, forest stands will be harvested to produce forest gaps and a

Biology and feeding habits of pleocoma larvae (Coleoptera : Scarabaeidae) in western Oregon coniferous forest

Creator:: Fellin, David G.
Abstract:: Food habits and biology of five species of Pleocoma larvae were studied at a dozen forested sites in western Oregon between May 1960 and December 1961. First instar Pleocoma hatch in late summer and moult to second instars in early fall. Second and subsequent instars moult annually between mid-summer and...
Resource Type:: Dissertation
Full Text:: . Parker, former Chief, Division of Forest Insect Research, Intermountain Forest and Range Experi- ment

ScholarsArchive@OSU

Effects of single and simultaneous challenges using DDT and a nuclear polyhedrosis virus against the variegated cutwork, Peridroma saucia (Hübner)

Integration of microbial and chemical controls against codling moth, Cydia pomonella (L.) : laboratory and field evaluation

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

Habitat associations of riparian beetles (Coleoptera) at Big Beaver Creek Research Natural Area, North Cascades National Park, Washington

Digonichaeta setipennis Fall : a Tachinid parasite of the European earwig, with a study of its introduction, biology and laboratory methods used in rearing in Oregon

The macroheterocera (lepidoptera) of a mixed forest in western Oregon

The biologies of predators (Coleoptera: Cleridae) of the Douglas-fir beetle, Dendroctonus pseudotsugae Hopkins (Coleoptera : Scolytidae), in western Oregon

Soil arthropods in the Central Cascades : slash burning effects and biology of some species

Correlation between structural heterogeneity and arthropod biodiversity : implications for management of Pacific Northwest forests

Biology and feeding habits of pleocoma larvae (Coleoptera : Scarabaeidae) in western Oregon coniferous forest

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search