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Habits and control of the Willamette mite Eotetranychus willamettei (McGregor) and related species in Hood River valley

Creator:: Olney, Vernon William
Resource Type:: Masters Thesis
Full Text:: willamettei (McGregor) and related species in Hood River valley - AN ABSTRACT Oi TtiE TIESIS OJf Vernon

Nearctic sawflies I, the adults and larvae of the subfamily Blennocampinae (Hymenoptera: Tenthredinidae)

Creator:: Smith, David R.
Abstract:: Seventy-two species of Blennocampinae in 21 genera and six tribes are known from the Nearctic region. The adults and known larvae of all species and genera are keyed, described and illistrated. A definition of the subfamily, a review of previous work, a table of host-plant associations, and a discussion of...
Resource Type:: Dissertation
Full Text:: of type specimens, and encouraging my work on sawflies: Dr. H. H. Ross, Illinois Natural

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:: my manuscripts and participation on my committee and Dr. Darrell Ross who made sure I jumped through

Population and production ecology of Lipsothrix spp. (Diptera:Tipulidae)

Creator:: Dudley, Thomas L.
Abstract:: Craneflies of the genus Lipsothrix inhabit decomposing wood in streams. The life cycles and ecological relationships of L. nigrilinea (Doane) and L. fenderi Alexander were investigated to determine how they exploit and respond to the wood habitat and their role in degradation of woody debris in western Oregon. Surveys of...
Resource Type:: Masters Thesis
Full Text:: encouragement of Ken Cummins. Gordon Pritchard and George Byers gave me sage advice from afar. The members of

A study of the Megaloptera of the Pacific coastal region of the United States

Creator:: Evans, Elwin D.
Resource Type:: Dissertation
Full Text:: . In the Sialidae, the larvae of Sialis arvalis Ross, S. californica Banks, S. cornuta Ross, S. hamata

The effect of concentration of the toxicity of acaricides to the two-spotted spider mite, Tetranychus bimaculatus Harvey

Creator:: Downing, R. S. (Ralph Strang), 1920-
Resource Type:: Masters Thesis
Full Text:: . Vernon J. Olrìey of the Hood River, Oreçon, Experimental Station who generously surpl1ed the nites

The distribution and biology of some Anthocoridae (Hemiptera: Heteroptera) in the Pacific Northwest

Creator:: Anderson, Norman Herbert
Resource Type:: Masters Thesis
Full Text:: . To Mr. W. Dowries, Victoria, B. C., Dr. D. A. Ross, Entomology Laboratory, Vernon, B. C., Dr. M T

Ecology of mites on pomaceous fruit trees and related wild hosts in Hood River Valley

Creator:: Jorgensen, Clive Darrel
Abstract:: The ecological interrelationships of mites occurring in and near the Hood River Valley, Oregon, pome fruit orchards were investigated to determine the possibility of an integrated control program using the species already present. Survey sampling methods were used to study mites on wild hosts (Crataegus douglasii Lindl., Crataegus columbiana Howell,...
Resource Type:: Dissertation
Full Text:: , Margaret A. Hughes, Henry W. Hurlbutt, Gerald W. Krantz, Evert E. Lindquist, A. Earl Pritchard, Max

The seasonal occurrence and larval habitats of the mosquitoes of Corvallis, Oregon (Diptera-Culicidae)

Creator:: Kerr, George Ezekiel
Abstract:: From May through November 1963, a mosquito survey was made in the city of Corvallis, Oregon. The information obtained dealt with the species of mosquitoes found, their seasonal occurrence and the location and nature of their larval habitats. A quantitative and qualitative analysis of larval and adult mosquito collections by...
Resource Type:: Masters Thesis

Effects of intrinsic factors in the transmission of bean yellow mosaic virus by aphids

Creator:: Sohi, Sardara Singh
Abstract:: The effects of the inherent transmissibility of the virus and of the inherent transmitting ability of aphids on the transmission of bean yellow mosaic virus (BYMV) were studied along with four virus-vector relationships of BYMV and the green peach aphid, Myzus persicae (Sulz.). In addition, investigations were made on the...
Resource Type:: Dissertation
Full Text:: . Vernon, Washington l1t. Vernon, Washington Moses Lake, Washington Dayton, Washington I\,lt. Vernon

ScholarsArchive@OSU

Habits and control of the Willamette mite Eotetranychus willamettei (McGregor) and related species in Hood River valley

Nearctic sawflies I, the adults and larvae of the subfamily Blennocampinae (Hymenoptera: Tenthredinidae)

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

Population and production ecology of Lipsothrix spp. (Diptera:Tipulidae)

A study of the Megaloptera of the Pacific coastal region of the United States

The effect of concentration of the toxicity of acaricides to the two-spotted spider mite, Tetranychus bimaculatus Harvey

The distribution and biology of some Anthocoridae (Hemiptera: Heteroptera) in the Pacific Northwest

Ecology of mites on pomaceous fruit trees and related wild hosts in Hood River Valley

The seasonal occurrence and larval habitats of the mosquitoes of Corvallis, Oregon (Diptera-Culicidae)

Effects of intrinsic factors in the transmission of bean yellow mosaic virus by aphids

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