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The effects of kernel feeding by brown marmorated stink bug (Halyomorpha halys: Hemiptera: Pentatomidae) on commercial hazelnuts (Corylus avellana L.)

Creator:: Hedstrom, Christopher S.
Abstract:: Halyomorpha halys (brown marmorated stink bug, Hemiptera: Pentatomidae), an invasive insect pest, has established populations in the Willamette Valley of Oregon. Halyomorpha halys is a potential pest of many specialty crops in the Willamette Valley, including hazelnuts (Corylus avellana L.). The objectives of this study were to 1) characterize the...
Resource Type:: Masters Thesis
Full Text:: Bug (Halyomorpha halys: AN ABSTRACT OF THE THESIS OF Christopher S. Hedstrom for the degree of

Pheromone mating disruption of filbertworm moth (Cydia latiferreana)in commercial hazelnut orchards

Creator:: Hedstrom, Christopher
Abstract:: BACKGROUND: Oregon produces 99% of the hazelnuts grown in the United States. The key pest threatening commercial hazelnut orchards in Oregon is Cydia latiferreana (Tortricidae), filbertworm moth (FBW). Currently, most growers control FBW with one to two applications of esfenvalerate (Asana XL), a broad spectrum pyrethroid. Pheromone mating disruption is...
Resource Type:: Undergraduate Thesis and Presentation

Involvement of inflammation and associated Mac-1⁺Gr-1⁺ cells in the immune suppression induced by 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD)

Creator:: Choi, Jin-Young, 1964
Abstract:: Exposure to TCDD suppresses the generation of immune responses through unknown mechanisms. Interestingly, TCDD enhances inflammatory responses to various stimuli. The goal of the studies presented in this thesis was to examine the role of hyperinflammation in TCDD-induced immunotoxicity. Previously we observed an increase in Mac-1⁺ cells in the spleen...
Resource Type:: Dissertation
Full Text:: thank to my committee members: Dr. Christopher Bayne, Dr. Jerry Heidel, Dr David Williams, Dr. Olaf

How to recognize brown marmorated stink bug damage in commercial hazelnuts

Creator:: Wiman, Nik G., Shearer, Peter, Miller, Jeff, Hedstrom, Christopher S., Walton, Vaughn M., Brewer, Linda J., and Oregon State University. Extension Service
Abstract:: Publication describes and shows photographs of the different types of damage caused to hazelnuts by brown marmorated stink bugs.
Resource Type:: Technical Report
Full Text:: Commercial Hazelnuts 1 Chris Hedstrom, courtesy faculty in the Department of Horticulture; Vaugh Walton

Cytotoxic responses of Biomphalaria glabrata hemocytes towards the parasite Schistosoma mansoni : the role of reactive oxygen and nitrogen species

Creator:: Hahn, Ulrike K.
Resource Type:: Dissertation
Full Text:: Randall C. Bender was involved in the design and writing of chapter 2 and chapter 3. Dr. Christopher J

Effects of pollen collected by honey bees from pollination dependent agricultural cropping systems on honey bee nutrition

Creator:: Topitzhofer, Ellen
Abstract:: Managed honey bee (Apis mellifera L.) colonies are important pollinators of many cultivated crops. Honey bee colony declines averaging 30% annually in the United States for the past 7 years have caused significant concern and hence have been a topic of intensive investigation. These declines are reportedly due to multiple...
Resource Type:: Masters Thesis
Full Text:: project. I especially thank Brandy Saffell, Phil Schapker, Joe Rothleutner, Megan Mathey, Chris Hedstrom

Chronic exposure of rodents to indole-3-carbinol and 3,3'-diindolylmethane : implications for drug metabolism, chemoprevention and human health

Creator:: Leibelt, Dustin A.
Abstract:: Indole-3-carbinol (I3C) is a naturally occurring plant alkaloid, found in significant concentrations in cruciferous vegetables such as broccoli and Brussels sprouts. I3C is an unstable compound that undergoes rapid oligomerization in an acidic environment to form higher order condensation products (I3C-ACPs), such as 3-3'-diindolylmethane (DIM). Both I3C and DIM are...
Resource Type:: Dissertation
Full Text:: support. I thank Drs. Donald Reed, Balz Frei, Philip Whanger, and Christopher Bayne for serving as

Exploring the biology and monitoring techniques of two economically impactful Chrysobothris species in Oregon hazelnuts

Creator:: Rudolph, Erica
Abstract:: Chrysobothris mali Horn and C. femorata Olivier (Coleoptera : Buprestidae) are two flatheaded wood boring beetle species that have become economically impactful pests in North American high value tree cropping systems. Both species are native to North America, with C. femorata occurring across the continent (Wellso and Manley 2007), whereas...
Resource Type:: Masters Thesis
Full Text:: Hedstrom

DNA binding and beyond : an investigation of proteins involved in PAH-induced carcinogesesis

Creator:: Hooven, Louisa Ada
Abstract:: Exposure to polycyclic aromatic hydrocarbons such as benzo[a]pyrene (B[a]P) has been determined to be a risk factor for various forms of human cancer. PAH DNA adducts have been shown to cause mutations, but carcinogenesis is also accompanied by alterations in gene expression. Inhibiting individual cytochrome P450s could clarify the interaction...
Resource Type:: Dissertation
Full Text:: unwavering support. My appreciation is also extended to Dr. P. Shing Ho, Dr. Christopher K. Mathews, and Dr

Evaluation of grapevine red blotch virus epidemiology with reference to potential insect vectors

Creator:: Dalton, Daniel T.
Abstract:: Grapevine red blotch virus (GRBV), the causal agent of red blotch disease (RBD) in grapevine, Vitis vinifera L., is an emerging pathogen of significance to the wine grape industry of Oregon, USA. To address knowledge gaps of GRBV epidemiology, spread of GRBV was evaluated in Oregon vineyards over four years....
Resource Type:: Dissertation
Full Text:: Moretti; present and former graduate students Kyoo Park, Serhan Mermer, Chris Hedstrom, Samantha

ScholarsArchive@OSU

The effects of kernel feeding by brown marmorated stink bug (Halyomorpha halys: Hemiptera: Pentatomidae) on commercial hazelnuts (Corylus avellana L.)

Pheromone mating disruption of filbertworm moth (Cydia latiferreana)in commercial hazelnut orchards

Involvement of inflammation and associated Mac-1⁺Gr-1⁺ cells in the immune suppression induced by 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD)

How to recognize brown marmorated stink bug damage in commercial hazelnuts

Cytotoxic responses of Biomphalaria glabrata hemocytes towards the parasite Schistosoma mansoni : the role of reactive oxygen and nitrogen species

Effects of pollen collected by honey bees from pollination dependent agricultural cropping systems on honey bee nutrition

Chronic exposure of rodents to indole-3-carbinol and 3,3'-diindolylmethane : implications for drug metabolism, chemoprevention and human health

Exploring the biology and monitoring techniques of two economically impactful Chrysobothris species in Oregon hazelnuts

DNA binding and beyond : an investigation of proteins involved in PAH-induced carcinogesesis

Evaluation of grapevine red blotch virus epidemiology with reference to potential insect vectors

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