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The biology and control of the insect vectors of potato viruses in Oregon

Creator:: Crumb, S. E. (Samuel Ebb)
Resource Type:: Dissertation
Full Text:: project. He has grown the tuber samples from insecticide plots and determined the amount of disease

Biology of Meligethes seminulum lec. (Coleoptera: Nitidulidae)

Creator:: Dickason, E. A. (Elvis Arnie), 1919-
Resource Type:: Masters Thesis
Full Text:: - ported as an economic pest because it destroys the flowers of cruciferous and uinbelliferous plants

Life history and habits of the strawberry crown-moth Aegeria rutilans

Creator:: Hills, Orin A.
Resource Type:: Masters Thesis
Full Text:: . "The best surest and easiest way to control this pest, however is to watch the plants closely early in

Biology and control of the black cherry aphid, Myzus cerasi (FAB.), in the Willamette Valley

Creator:: Gilmore, James Eugene
Resource Type:: Masters Thesis
Full Text:: , general information regarding the seasonal history of the pest, preda- tors and parasites, control

Mechanisms of resistance in broccoli, Brassica oleracea italica to the garden symphylan, Scutigerella immaculata (Newport)

Creator:: Simagrai, Montri
Abstract:: Studies were conducted on the mechanisms contributing to resistance in broccoli, Brassica oleracea italica, to the garden symphylan, Scutigerella immaculata (Newport). Differences in resistance to symphylan injury were shown between five selected broccoli cultivars. The hybrid cultivars, Crusader, Green Duke and Bravo, showed a higher level of resistance to symphylans...
Resource Type:: Masters Thesis
Full Text:: been grown successfully. Included in the report of Insect-Pest Management and Control (1969), were

Labops hesperius Uhler : biology and impact of Oregon rangelands (Hemiptera: Miridae)

Creator:: Todd, James Gordon
Abstract:: The seasonal development and habits of Labops hesperius Uhler were studied in rangeland seeded to intermediate wheatgrass (Agropyron intermediurn (Host) Beauv. ) in Baker County, Oregon, The first nymphs appeared on March 22, and required about one week to complete each of the five nymphal stadia. Most small nymphs stayed...
Resource Type:: Masters Thesis
Full Text:: ) Title: LABOPS HESPERIUS UHLER: BIOLOGY AND IMPACT IN OREGON RANGELANDS (HEMIPTERA: MIRIDAE) Abstract

Seasonal distribution, sex attractants, and applied biology of the strawberry crown moth, Synanthedon bibionipennis (Boisduval), in Oregon (Lepidoptera:Sesiidae)

Creator:: Wilmot, Thomas Ray
Resource Type:: Masters Thesis
Full Text:: a serious pest of cultivated strawberries, Fragaria x ananassa Duch., and blackcap rasp- berries

Mechanisms of hop resistance to the twospotted spider mite (Tetranychus urticae Koch)

Creator:: Peters, Kay Myra
Abstract:: Hop varieties were compared under field and greenhouse conditions to determine their relative susceptibility to the twospotted spider mite, Tetranychus urticac Koch. A fertility schedule was prepared for mites on resistant and susceptible varieties, and tests were conducted to compare sex ratio, oviposition rate, survival rate, and developmental rate of...
Resource Type:: Masters Thesis
Full Text:: behavior; (2) antibiosis, a plant's adverse effect on the growth or survival of a pest; and (3) tolerance

Sampling and estimating populations of insect seed-predators in coniferous forests

Creator:: Russell, Malcolm Howard
Resource Type:: Masters Thesis
Full Text:: Sampling and estimating populations of insect seed

Differential transmission of strawberry mottle virus by Chaetosiphon thomas Hille Ris Lambers and Chaetosiphon fragaefolii (Cockerell)

Creator:: Eulensen, Gustav Egon
Abstract:: The transmission of strawberry mottle virus (SMV) to Fragaria vesca L. by Chaetosiphon thomasi and C. fragaefolii was studied to determine differences between the two species. Acquisition, inoculation, and retention phases of transmission were described. In all phases, C. fragaefolii was found to be the more efficient vector. Mean transmission...
Resource Type:: Masters Thesis
Full Text:: . Plant Disease Reporter, 52: 64-67. Frazier, N. W. and A. F. Posnette. 1958. Relationships of the straw

ScholarsArchive@OSU

The biology and control of the insect vectors of potato viruses in Oregon

Biology of Meligethes seminulum lec. (Coleoptera: Nitidulidae)

Life history and habits of the strawberry crown-moth Aegeria rutilans

Biology and control of the black cherry aphid, Myzus cerasi (FAB.), in the Willamette Valley

Mechanisms of resistance in broccoli, Brassica oleracea italica to the garden symphylan, Scutigerella immaculata (Newport)

Labops hesperius Uhler : biology and impact of Oregon rangelands (Hemiptera: Miridae)

Seasonal distribution, sex attractants, and applied biology of the strawberry crown moth, Synanthedon bibionipennis (Boisduval), in Oregon (Lepidoptera:Sesiidae)

Mechanisms of hop resistance to the twospotted spider mite (Tetranychus urticae Koch)

Sampling and estimating populations of insect seed-predators in coniferous forests

Differential transmission of strawberry mottle virus by Chaetosiphon thomas Hille Ris Lambers and Chaetosiphon fragaefolii (Cockerell)

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