Index Catalog // ScholarsArchive@OSU

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:: Biology and feeding habits of Pleocoma larvae (Coleoptera

Sampling and management of garden symphylans (Scutigerella immaculata Newport) in western Oregon

Creator:: Umble, Jon R.
Abstract:: Garden symphylans (Scutigerella immaculata Newport) are increasingly important pests of below-ground parts of over 100 crops in Oregon. The focus of our work was to improve S. immaculata management through 1) development of a bait sampling method, 2) examination of the susceptibility of selected crops to S. immaculata feeding in...
Resource Type:: Dissertation
Full Text:: Entomology 29 Abstract The influence of garden symphylan (Scutigerella immaculata Newport) root feeding

Phylogenetic Studies in Tenebrionidae (Coleoptera) and Related Families

Creator:: Kanda, Kojun
Abstract:: In this dissertation, I present the results from three studies: (1) a phylogeny of Tenebrionoidea (Coleoptera) inferred from a seven-gene dataset derived from PCR and Sanger sequencing; (2) a phylogeny of Tenebrionidae, the largest family in Tenebrionoidea, inferred from a four-gene dataset also derived from PCR and Sanger sequencing; (3)...
Resource Type:: Dissertation
Full Text:: (Coleoptera) and Related Families Abstract approved

Effects of the garden symphylan, Scutigerella immaculata Newport, on physiological processes of bush snap bean, Phaseolus vulgaris L.

Creator:: Eltoum, Elameen M. A.
Resource Type:: Dissertation
Full Text:: Nutrient Elements in Bean Leaves 67 Effects of Symphylan Root Injury on Plant Growth and Yield 73 V

Certain factors affecting colonization of Ponderosa pine by Ips confusus (Leconte) (Coleoptera : Scolytidae)

Creator:: Pitman, Gary Boyd
Abstract:: The purpose of this study was to study in some detail host factors which influence the population dynamics of bark beetle. The dissertation objectives were to ascertain the applicability of utilizing osmotic pressure values and relative turgidity values of phloem tissue as indicators which reflect upon the physiological profile of...
Resource Type:: Dissertation
Full Text:: confusus elicited by males feeding in discs from trees with high and low oleoresin exudation pres- sures

Phylogenomics and Evolution of Ground Beetles, with an Emphasis on the Speciose Tribes Chlaeniini and Bembidiini (Coleoptera: Carabidae)

Creator:: Pflug, James M.
Abstract:: In this dissertation, I investigate the evolution and genomes of carabid beetles, a worldwide family of over 38,000 species. I focus on two species-rich groups, the tribes Chlaeniini and Bembidiini, both of which are primarily found on the shores of bodies of water. The former are distinctive for their defensive...
Resource Type:: Dissertation
Full Text:: the Speciose Tribes Chlaeniini and Bembidiini (Coleoptera: Carabidae) Abstract approved

Marine herbivore-plant interactions : the feeding ecology of the sea slug Placida dendritica

Creator:: Trowbridge, Cynthia D.
Abstract:: The feeding ecology of a common temperate mesoherbivore, the oligophagous sea slug Placida dendritica (Gastropoda: Opisthobranchia: Ascoglossa), was examined from April 1985 to June 1989. Along the central coast of Oregon, Placida consumed three host species: the low intertidal green algae Codium setchellii, C. fragile, and Bryopsis corticulans. Individual slugs...
Resource Type:: Dissertation
Full Text:: feeding and modification of algal food quality. Placida was numerically and functionally the major

Certain biotic factors influencing the invasion and survival of the Douglas-fir beetle Dendroctonus pseudotsugae Hopkins (Coleoptera : scolytidae) in fallen trees

Creator:: Hendrickson, William Henry
Abstract:: Factors considered were phloem moisture, sour-phloem (which may be furthered by the presence of ample phloem moisture), oleoresin of the host, and the presence of unmated female beetles in suitable host material. Levels of phloem moisture present in variously prepared logs in the field ranged from about 100 to upwards...
Resource Type:: Dissertation
Full Text:: feeding occurs which ernphasizes de- structiveness of the species.. Furtherrnore, and perhaps rnore irn

Phenology and monitoring of the cabbage maggot, Delia radicum (L.), in brassica root crops

Creator:: Dreves, Amy J.
Abstract:: In Oregon’s northern Willamette Valley, cabbage maggot (CM), Delia radicum (L.) (Diptera: Anthomyiidae) often renders Brassica root crops unmarketable. Scheduled insecticides are the only current control. Studies were conducted to: 1) describe and characterize spring emergence of CM flies and their seasonal flight activity relative to degree-day (DD) accumulations; 2)...
Resource Type:: Dissertation
Full Text:: main roots. After feeding for 2-3 weeks, larvae pupate in the soil around the plant root and emerge as

Responses and relationships among Fusarium species, sweet corn, and western spotted cucumber beetles

Creator:: Miller, Nathan L. (Nathan Louis)
Abstract:: Sweet corn (Zea mays L.) yields in the Willamette Valley of Oregon have been declining since the early 1990’s. Studies were done to determine if there is a relationship between ear weight and several disease parameters including necrotic crowns or stalk nodes, nodal root rot, radicle root rot, and sub-crown...
Resource Type:: Dissertation
Full Text:: in the root ball had larval feeding damage. Stalks and crowns were split longitudinally

ScholarsArchive@OSU

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

Sampling and management of garden symphylans (Scutigerella immaculata Newport) in western Oregon

Phylogenetic Studies in Tenebrionidae (Coleoptera) and Related Families

Effects of the garden symphylan, Scutigerella immaculata Newport, on physiological processes of bush snap bean, Phaseolus vulgaris L.

Certain factors affecting colonization of Ponderosa pine by Ips confusus (Leconte) (Coleoptera : Scolytidae)

Phylogenomics and Evolution of Ground Beetles, with an Emphasis on the Speciose Tribes Chlaeniini and Bembidiini (Coleoptera: Carabidae)

Marine herbivore-plant interactions : the feeding ecology of the sea slug Placida dendritica

Certain biotic factors influencing the invasion and survival of the Douglas-fir beetle Dendroctonus pseudotsugae Hopkins (Coleoptera : scolytidae) in fallen trees

Phenology and monitoring of the cabbage maggot, Delia radicum (L.), in brassica root crops

Responses and relationships among Fusarium species, sweet corn, and western spotted cucumber beetles

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