Index Catalog // ScholarsArchive@OSU

Life history and control of the grape leaf folder in the San Joaquin Valley, California

Creator:: Kaloostian, George Hagop
Resource Type:: Masters Thesis
Full Text:: Life history and control of the grape leaf folder in the

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:: of ponderosa pine girdled for one month, one year and five years......, 127 17. Summary of the

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:: Phenacaspis pinifoliae on "Scotch pine" in Saskatchewan, Canada. The population was bisexual and univoltine

Biology, distribution and economic threshold of the strawberry root weevil, Otiorhynchus ovatus (L.), in peppermint

Creator:: Cacka, Joseph Francis
Resource Type:: Masters Thesis
Full Text:: Biology 6 Control Strategies and Methods 7 Sampling 10 METHODS AND MATERIALS 12 Field Locations 12

Toxicity of peppermint monoterpenes to the variegated cutworm, Peridroma saucia Hübner

Creator:: Harwood, Steven Hunter
Abstract:: The toxicity of menthol, menthone, pulegone, limonene, and a-pinene, five monoterpenes found in peppermint (Mentha piperita L.), to the variegated cutworm (Peridroma saucia Hiibner) was characterized by in vivo and in vitro methods. Pulegone and menthone caused slower growth over six days when incorporated into an artificial diet and fed...
Resource Type:: Masters Thesis
Full Text:: major pest in commercial peppermint of Western Oregon (Berry and Shields 1980). Parasitism of P

Management of variegated cutworm in peppermint

Creator:: Coop, Leonard Bryan
Abstract:: A pest management program for variegated cutworm (VC), Peridroma saucia (Hubner), in Oregon peppermint was developed based on studies of pheromone trapping, sampling methods, and economic thresholds. Pheromone traps effectively trapped VC males and were used to reflect development and oviposition trends. Trap height was linearly correlated to moth catch...
Resource Type:: Dissertation
Full Text:: thresholds (number of larvae/1000 cm2 as a function of peppermint oil price, cost of control, and field class

Status, distribution and seasonal variation of filbert aphid resistance to selected insecticides in the Willamette Valley, Oregon

Creator:: Katundu, Juma
Abstract:: Levels of resistance to six selected insecticides of eleven field populations of the filbert aphid Mvzocallis coryli (Goetze) were determined by using the leaf-dip residue technique. Test insecticides included compounds widely used in commercial filbert orchards, namely, carbaryl, diazinon, endosulfan, phosalone, fenvalerate and oxydemetonmethyl. Aphid samples were collected within a...
Resource Type:: Masters Thesis
Full Text:: , Painter and Jones 1958). Due to the presence of the pest complex described above and the need to reduce

Classical biological control of the filbert aphid, Myzocallis coryli (Goetze) (Homoptera:Aphididae) in western Oregon

Creator:: Messing, Russell H.
Abstract:: A classical biological control project was undertaken against the filbert aphid, Myzocallis coryli (Goetze), in western Oregon. Hazelnut orchards in Spain, France, and Italy were searched for natural enemies of the aphid, and a parasitic wasp, Trioxys pallidus Haliday, was imported, quarantined, mass-reared, and released in Oregon orchards. The wasp...
Resource Type:: Dissertation
Full Text:: guild. 2. The aphid is a serious, constant pest in hazelnut production. It is costly to control, and

Sampling methods, biology and management of the mint flea beetle in central Oregon peppermint

Creator:: Morris, Mark A.
Abstract:: Sampling techniques were evaluated to quantify immature mint flea beetle (MFB), Longitrsus waterhousei Kutschera (Coleoptera: Chrysomelidae), on peppermint (Mentha piperita L.), in central Oregon. During the study period, 1985-1988, soil samples of 350 cm³ were effective for collecting immature MFB. Sifting soil samples through screens was effective for estimating post-feeding...
Resource Type:: Masters Thesis
Full Text:: to investigate immature MFB field biology, control measures, and to develop future peppermint pest

Toxicity of some commonly used pesticides to Trioxys Pallidus and its establishment in filbert orchards of Willamette Valley

Creator:: Saeed, Mohammad
Abstract:: A parasitic wasp, Trioxys pallidus Haliday (Hymenoptera: Aphidiidae) was imported from Europe and initially released against the filbert aphid Mvzocallis coryli (Goetze) in hazelnut (filbert) orchards of the Willamette Valley, Oregon beginning in 1984. In the present study, I investigated the establishment rates of this parasitoid. A total of 13...
Resource Type:: Masters Thesis
Full Text:: useful in implementation of integrated pest control programs involving incorporation of chemical and

ScholarsArchive@OSU

Life history and control of the grape leaf folder in the San Joaquin Valley, California

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

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

Biology, distribution and economic threshold of the strawberry root weevil, Otiorhynchus ovatus (L.), in peppermint

Toxicity of peppermint monoterpenes to the variegated cutworm, Peridroma saucia Hübner

Management of variegated cutworm in peppermint

Status, distribution and seasonal variation of filbert aphid resistance to selected insecticides in the Willamette Valley, Oregon

Classical biological control of the filbert aphid, Myzocallis coryli (Goetze) (Homoptera:Aphididae) in western Oregon

Sampling methods, biology and management of the mint flea beetle in central Oregon peppermint

Toxicity of some commonly used pesticides to Trioxys Pallidus and its establishment in filbert orchards of Willamette Valley

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