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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:: Experiment Station. Bulletin 486) Howitt, A. J. and R. M. Bullock. 1955. Control of the garden centipede

Biology and population regulation of the strawberry root weevil, Otiorhynchus ovatus (L.) (Coleoptera:Curculionidae)

Creator:: Emenegger, Donald Brian
Abstract:: The life history of the strawberry root weevil, Otiorhynchus ovatus (L.), on peppermint was studied in the Willamette Valley of Oregon to provide the information necessary to develop effective control measures. Adult weevils emerged from the soil from late May until mid- June and were active in the field until...
Resource Type:: Masters Thesis

Effects of tillage on emergence of mint root borer, Fumibotys fumalis Guenée, and on other agronomic factors in peppermint, Mentha piperita L.

Creator:: Talkington, Michael Lee
Abstract:: Studies were conducted in the Willamette Valley of western Oregon to evaluate the effects of plowing (7.5-15 cm deep) and disking (5-10 cm deep) in peppermint, Mentha piperita L., on the following factors: 1) emergence of adult "mint root borer", Fumibotys fumalis Guenée; 2) suppression of common groundsel, Senecio vulgaris...
Resource Type:: Masters Thesis
Full Text:: State University Extension Service in Jefferson County, Oregon during 1980 indicated that fall plowing

Control of mint root borer, Fumibotys fumalis, with the entomopathogenic nematode, Steinernema carpocapsae

Creator:: Takeyasu, Joyce
Resource Type:: Masters Thesis

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:: extension entomology. The other members of my committee, Dr. Jeff Gonor, Dr. Jeff Miller and Dr. Mary

Big-eyed bugs as predators of the green peach aphid

Creator:: Puls, Karl A.
Resource Type:: Masters Thesis
Full Text:: Hermiston Agricultural Research and Extension Center. 44 11.2 Twice-weekly beating cloth samples of

The response of scutigerella immaculata to naturally occurring chemical stimuli

Creator:: Reeve, Daniel Hart
Abstract:: A study was conducted of the response of the garden symphylan, Scutigerella immaculata (Newport), to naturally occurring chemicals. Results of olfactometer studies with plant odors were inconclusive because air currents in one olfactometer and the shape of another had undesirable effects on symphylan behavior. Non-random distributions of symphylans in chambers...
Resource Type:: Masters Thesis

Temperature-dependent development of strawberry root weevil Otiorhynchus ovatus (L.)

Creator:: Umble, Jon R.
Abstract:: The temperature-dependent development of pupae and adults of strawberry root weevil (SRW) Otiorhynchus ovatus (L.) was studied in strawberry (Fragaria x ananassa Duch. var. 'Totem'). The development of pupae and adults was investigated at constant temperatures from 3-33°C at 3°C intervals. Major emphasis was on the development of a weighted...
Resource Type:: Masters Thesis
Full Text:: . 'Totem') plot at the Oregon State University, North Willamette Research and Extension Center (NWREC

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

Creator:: Cacka, Joseph Francis
Resource Type:: Masters Thesis

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:: laboratory procedures. Dr. Glenn C. Fisher, Extension Entomologist, for his interest and encouragement. Dr

ScholarsArchive@OSU

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

Biology and population regulation of the strawberry root weevil, Otiorhynchus ovatus (L.) (Coleoptera:Curculionidae)

Effects of tillage on emergence of mint root borer, Fumibotys fumalis Guenée, and on other agronomic factors in peppermint, Mentha piperita L.

Control of mint root borer, Fumibotys fumalis, with the entomopathogenic nematode, Steinernema carpocapsae

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

Big-eyed bugs as predators of the green peach aphid

The response of scutigerella immaculata to naturally occurring chemical stimuli

Temperature-dependent development of strawberry root weevil Otiorhynchus ovatus (L.)

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

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

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