Index Catalog // ScholarsArchive@OSU

A comparative study of the isozymic proteins and the effect of metachemogenesis in the tissues of Periplaneta americana (L.)

Creator:: Beckendorf, Gerald Walter
Abstract:: An attempt was made to demonstrate isozymic forms of esterase, MDH, LDH and GPDH and the variation in enzyme pattern with increasing age in the thoracic muscle, appendage muscle and hemolymph of the American cockroach, Periplaneta americana. Sampled specimens of both sexes were aged one through seven days, two weeks...
Resource Type:: Masters Thesis

Oviposition of the codling moth, Laspeyresia pomonella (L.), on several varieties of apples and pears

Creator:: Gut, Larry J.
Abstract:: Ovipositional behavior of the codling moth, Laspeyresia pomonella (L.), on several varieties of apples and pears grown in the Pacific Northwest was investigated during the spring/summer of 1979. Field studies showed that early in the season more eggs were laid on the Bosc variety than on several other apple and...
Resource Type:: Masters Thesis
Full Text:: North America, the species gradually spread westward reaching California in about 1874 (Putman, 1963

Detection and characterization of resistance to pesticides in codling moth, Cydia pomonella L. from Oregon

Creator:: Arshad, Muhammad, 1958-
Abstract:: Toxicological studies were carried out to evaluate the susceptibility of codling moth, Cydia pomonella L. to different insecticides. Bioassay procedures for adults and larvae were standardized in terms of posttreatment holding and temperature, age and sex of insects, insecticide formulations and selection of a reference strain. This study detected a...
Resource Type:: Masters Thesis
Full Text:: left untreated, the codling moth can infest up to 90 percent of apple and pear crops (Putman 1963

Thelytokous and dioecious populations of Phenacaspis pinifoliae (Fitch), (Homoptera : Diaspididae)

Creator:: Stimmann, Michael W.
Abstract:: Two populations of the pine needle scale, Phenacaspis pinifoliae (Fitch), were studied. One population was located in Corvallis, Oregon, and the other population was located near Santiam Pass, Oregon. Both populations were feeding on Pinus contorta. The Corvallis population was unisexual, univoltine, and over wintered as both eggs and adult...
Resource Type:: Masters Thesis
Full Text:: the writing of the manuscript. To Mr. R. F. Koontz for his aid with the photographs. To Mr. R. I. C

Biology of the leafhopper Macropsis fuscula (Zett.) (Homoptera: Cicadellidae)

Creator:: Tonks, Norman Vincent
Resource Type:: Masters Thesis
Full Text:: the degree of ÂTR (F CIENC June 1959 MPROVED: Redacted for privacy Profeeeor of ntomo1oy

The biology of the predator complex of the filbert aphid, Myzocallis coryli (Goetze), in western Oregon

Creator:: Messing, Russell H.
Abstract:: Commercial filbert orchards throughout the Willamette Valley were surveyed for natural enemies of the filbert aphid, Myzocallis coryli (Goetze). A large number of predaceous insects were found to prey upon M. coryli, particularly members of the families Coccinellidae, Miridae, Chrysopidae, Hemerobiidae, and Syrphidae. Also, a parasitic Hymenopteran (Mesidiopsis sp.) and...
Resource Type:: Masters Thesis
Full Text:: . 86 b. A. bipunctata 87 c. C. polita 88 d. Ibi5TToTcinellids 89 e. D. brevis 90 f. Tot5IIrcewings 91

Phytoseiid mites (Parasitiformes:Phytoseiidae) of commerical crops in the Willamette Valley, Oregon and pesticide resistance in the principal species Typhlodromus pyri Scheuten

Creator:: Hadam, John J.
Resource Type:: Masters Thesis
Full Text:: Redacted for Privacy Professor of Entomology ifrcharge of major Redacted for Privacy /C:;r4--e-f-- "7

Host exploitation by Dinocampus Coccinellae (Schrank) [Hymenoptera: Braconidae]

Creator:: Belnavis, Diane Lyn
Abstract:: Ecological relationships between D. coccinellae and its coccinellid hosts were examined in the Willamette Valley, Oregon, in 1982. The distribution and relative abundance of seven species of coccinellids from eight collecting sites were monitored to determine percent parasitism by D. coccinellae on a spatial and temporal basis. Host size and...
Resource Type:: Masters Thesis
Full Text:: , 1986; Putman, 1964; Hagen, 1962; Smith, 1961). Most coccinellid species have 1 to 2 generations per

The biology of the brown orchard mite, Bryobia arborea Morgan and Anderson (Acarina : Tetranychidae) on stone fruit trees in The Dalles, Oregon area

Creator:: Burts, Everett C.
Resource Type:: Masters Thesis
Full Text:: after f eeding; their peritremes have a bifurcate knob, the outer fork being longer and curved inward

The SELCTV database : the susceptibility of arthropod natural enemies to agricultural pests to pesticides

Creator:: Theiling, Karen M.
Abstract:: Documentation of the side effects of pesticides on arthropod natural enemies has expanded rapidly since the 1950's as part of an increase in non-target side effects literature. Most reviews have been based on empirical analysis of selected literature. The SELCTV database was developed to make a larger information base accessible...
Resource Type:: Masters Thesis
Full Text:: natural enemy. 2) NE:TYPE: predator (d), parasitoid (r) or both (b). 3) SEX: female (f), male (m) or

ScholarsArchive@OSU

A comparative study of the isozymic proteins and the effect of metachemogenesis in the tissues of Periplaneta americana (L.)

Oviposition of the codling moth, Laspeyresia pomonella (L.), on several varieties of apples and pears

Detection and characterization of resistance to pesticides in codling moth, Cydia pomonella L. from Oregon

Thelytokous and dioecious populations of Phenacaspis pinifoliae (Fitch), (Homoptera : Diaspididae)

Biology of the leafhopper Macropsis fuscula (Zett.) (Homoptera: Cicadellidae)

The biology of the predator complex of the filbert aphid, Myzocallis coryli (Goetze), in western Oregon

Phytoseiid mites (Parasitiformes:Phytoseiidae) of commerical crops in the Willamette Valley, Oregon and pesticide resistance in the principal species Typhlodromus pyri Scheuten

Host exploitation by Dinocampus Coccinellae (Schrank) [Hymenoptera: Braconidae]

The biology of the brown orchard mite, Bryobia arborea Morgan and Anderson (Acarina : Tetranychidae) on stone fruit trees in The Dalles, Oregon area

The SELCTV database : the susceptibility of arthropod natural enemies to agricultural pests to pesticides

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