Index Catalog // ScholarsArchive@OSU

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:: bean yiel,d. Leaf size, leaf fresh weight, total dry weight of shoots and roots of plants infested

Resistance in snap beans, Phaseolus vulgaris L., to adult western spotted cucumber beetle, Diabrotica u. indecimpunctata Mann

Creator:: Eltoum, Elameen M. A.
Abstract:: Studies to evaluate resistance in snap beans, Phaseolus vulgaris L. to adult western spotted cucumber beetles, Diabrotica u. undecimpunctata Mann. were conducted in greenhouse cages, field cages, field plots, and in temperature controlled cabinet in the laboratory. Results showed that there were differences in susceptibility to adult feeding injury between...
Resource Type:: Masters Thesis
Full Text:: bean. Sieve size seven and above are discarded as oversize beans. Sieve sizes two, three, and four are

Sampling methods and injury thresholds for western spotted cucumber beetle in snap beans

Creator:: Weinzierl, Richard Alan
Resource Type:: Dissertation
Full Text:: . to 2.5 for 1:00 p.m. The linear relationship (R2=.69) between corrected sweep-net and absolute

Salivation and engorgement parameters of sucking insect vectors : implications in pathogen transmission

Creator:: Shieh, Jong-neng
Abstract:: The probing behavior and feeding activity of green peach aphid, Myzus persicae Sulzer, on Bacillus thuringiensis ssp. tenebrionis- transgenic potatoes, insecticide treated potatoes, and host plants with different preference were electronically monitored. I found that first, transgenic potatoes had no effect on green peach aphid probing suggesting that transmission of...
Resource Type:: Dissertation
Full Text:: Vector efficiency, relationship of virus transmission between vector and host plants, and vector control

Attractivity of plant volatiles and a semichemical-based bait to the western spotted cucumber beetle, Diabrotica undecimpunctata Mannerheim (Coleoptera: Chrysomelidae)

Creator:: Hongtrakul, Tawatchai
Abstract:: The adult western spotted cucumber beetle (WSCB), Diabrotica undecimpunctata undecimpunctata Mannerheim is considered a major pest of snap beans grown for processing in Western Oregon. Control consists of 1 or 2 insecticide sprays prior to harvest. A commercial semiochemical-based insecticide bait, Adios TIC®, 1.3% carbaryl + 5% buffalo gourd root...
Resource Type:: Masters Thesis
Full Text:: volatile compounds were evaluated for their attractivity to WSCB in snap bean and squash fields by

Development and evaluation of sequential sampling plans for redbacked cutworm larvae, Euxoa ochrogaster (Guenée), in Oregon peppermint

Creator:: Danielson, Stephen Dale
Abstract:: Field studies were conducted in 1975 and 1976 to evaluate sequential sampling plans for the redbacked cutworm, Euxoa ochrogaster (Guenee), in Oregon peppermint. Sequential sampling resulted in reliable decisions concerning whether or not cutworm densities were high enough to justify treatment with insecticides. The use of sequential sampling reduced the...
Resource Type:: Masters Thesis
Full Text:: regression analysis to determine the relationship between cutworm density and peppermint oil yield

Seasonal abundance, distribution, and migration of the clover aphid, Nearctaphis bakeri (Cowen) in red clover

Creator:: Dreves, Amy J.
Abstract:: Four sampling techniques were evaluated to estimate clover aphid, Nearctaphis bakeri (Cowen), abundance in red clover fields in the Willamette Valley. The Berlese funnel method detected one to four times more aphids than other sampling techniques. Visual assessment often underestimated the high aphid densities during the flowering and seeding of...
Resource Type:: Masters Thesis
Full Text:: decreased seed yield and market value. The timing of an aphid attack on the clover is important in the

Regional population dynamics of Argyrotaenia citrana in Northwest caneberry : phenology, overwintering survivorship, and movement as measured by pheromone traps and larval sampling

Creator:: Knight, Alan Lee
Abstract:: Developmental requirements were determined for both larva and pupa as 503 and 176 degree-days (dd) above a lower threshold of 5°C. Adult emergence occurred from 300 to 700 dd accumulated from January 1st. Cumulative male emergence preceded female's by 50 - 80 dd. A PETE phenology model modified to include...
Resource Type:: Dissertation
Full Text:: and varied in size with the first peak. The influence of female moth/pheromone trap competition on

Transmission efficiency and life table parameters of western flower thrips, Frankliniella occidentalis (Pergande) exposed to tomato spotted wilt virus-impatiens serotype

Creator:: Sether, Diane M.
Abstract:: Peppermint, Mentha piperita 'Black Mitcham' was established as a host for tomato spotted wilt virus-impatiens serotype (TSWV-I). TSWV-I infection of peppermint, initially observed in a research greenhouse (Corvallis, OR), included stunting and downward curling of leaves accompanied by bronzing, and occasionally tip necrosis. Young leaves appeared either symptomless, deformed, or...
Resource Type:: Masters Thesis
Full Text:: and virus relationship 13 Objectives and Rationale 15 2. Western flower thrips, Frankliniella

Conservation of arthropod natural enemies in broccoli with relay strip-cropping

Creator:: McGrath, Daniel M. (Daniel Morton)
Abstract:: Relay strip-cropping combines two vegetation management tactics, under-sowing and strip-management. In this study conducted from 1994 though 1997, a cover crop seed-mixture containing oats (Avena sativa L. var. "Monida"), common vetch (Vicia sativa L.), red clover (Trifolium pratense L.), annual ryegrass (Lolium multflorum Lam.), and buckwheat (Fagopyrum esculentum Moench) was...
Resource Type:: Dissertation
Full Text:: enemies 30 Structural complexity and patch size 32 TILLAGE AND PESTICIDE REFUGES FOR NATURAL 37 ENEMIES

ScholarsArchive@OSU

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

Resistance in snap beans, Phaseolus vulgaris L., to adult western spotted cucumber beetle, Diabrotica u. indecimpunctata Mann

Sampling methods and injury thresholds for western spotted cucumber beetle in snap beans

Salivation and engorgement parameters of sucking insect vectors : implications in pathogen transmission

Attractivity of plant volatiles and a semichemical-based bait to the western spotted cucumber beetle, Diabrotica undecimpunctata Mannerheim (Coleoptera: Chrysomelidae)

Development and evaluation of sequential sampling plans for redbacked cutworm larvae, Euxoa ochrogaster (Guenée), in Oregon peppermint

Seasonal abundance, distribution, and migration of the clover aphid, Nearctaphis bakeri (Cowen) in red clover

Regional population dynamics of Argyrotaenia citrana in Northwest caneberry : phenology, overwintering survivorship, and movement as measured by pheromone traps and larval sampling

Transmission efficiency and life table parameters of western flower thrips, Frankliniella occidentalis (Pergande) exposed to tomato spotted wilt virus-impatiens serotype

Conservation of arthropod natural enemies in broccoli with relay strip-cropping

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