Index Catalog // ScholarsArchive@OSU

Evaluating Leucopis species (Diptera: Chamaemyiidae) from the Pacific Northwest as potential biological control agents of the hemlock woolly adelgid (Hemiptera: Adelgidae)

Creator:: Grubin, Sarah M.
Abstract:: Hemlock woolly adelgid, Adelges tsugae Annand, is a destructive introduced pest of hemlock trees in eastern North America, and management has focused on the use of natural enemies through classical biological control. Two species of chamaemyiid flies, Leucopis argenticollis Zetterstedt and Leucopis atrifacies (Aldrich) have been collected previously from western...
Resource Type:: Masters Thesis
Full Text:: committee, Drs. Darrell Ross, Kimberly Wallin and Vaughn Walton, for providing me with essential feedback

Alternative Controls for Stephanitis pyrioides in the Pacific Northwest.

Creator:: Graham, Katerina V.
Abstract:: The azalea lace bug (Stephanitis pyrioides Scott) is a global pest of rhododendrons and azaleas (Rhododendron spp.). It is originally from Asia, has been established in the eastern U.S. for the past century, and was recently detected in the Pacific Northwest in 2008-2009. Stephanitis pyrioides feeds on the underside of...
Resource Type:: Masters Thesis

Colony Level Infection of Honey Bee Gut Pathogen, Nosema ceranae and Role of Pollen Nutrition in Nosema ceranae Infection and Bee Survival

Creator:: Jack, Cameron
Abstract:: Honey bees are important pollinators for many agricultural systems throughout the world. However, recent honey bee declines have caused great alarm, drawing attention to the vulnerability of worldwide agriculture to pollinator loss. These declines are often attributed to a combination of pests, pathogens, viruses, chemicals, and a lack of proper...
Resource Type:: Masters Thesis
Full Text:: successful scientist, mentor, and educator. I would also like to thank Dr. Jana Lee, Dr. Vaughn Walton, and

Biology and Management of Pacific Flatheaded Borer, Chrysobothris mali, in Hazelnut

Creator:: Mugica, Anthony R.
Abstract:: Pacific flatheaded borer (PFB), Chrysobothris mali Horn (Coleoptera: Buprestidae), has recently become a serious pest in newly planted European hazelnut, Corylus avellana L. (Betulaceae) in Oregon. Larvae feeding on the inner bark can lead to girdling, loss of transpiration, and ultimately can cause dieback or death of the tree. Although...
Resource Type:: Masters Thesis
Full Text:: Wiman, Man-yeon Choi, Darrell Ross, and Vaughn Walton for your guidance and patience. Special thanks

Physiological effects of non-nutritive sugars on the survivorship and fecundity of Drosophila suzukii (Diptera: Drosophilidae)

Creator:: Tang, Siew Bee
Abstract:: Spotted wing drosophila (SWD), Drosophila suzukii, is an economically damaging pest on small fruits. The estimated economic impact is hundreds of millions of dollars annually in the U.S. alone, and increasing every year. Current control of SWD relies heavily on chemical insecticides which have many negative impacts on environmental and...
Resource Type:: Masters Thesis
Full Text:: would also like to thank Drs. Jana Lee, Vaughn Walton and Ronald Wrolstad for being in my committee. I

Brown Marmorated Stink Bug (BMSB), Halyomorpha halys Taint in Wine : Impact on Wine Sensory, Effect of Wine-processing and Management Techniques

Creator:: Mohekar, Pallavi
Abstract:: Brown marmorated stink bug (BMSB), (Halyomorpha halys, Hemiptera: Pentatomidae) is an invasive species that damages numerous agricultural crops including grapes. Related damage include lower berry weight with increased exposure and cracked berries as a result of BMSB feeding activity. The insect is currently detected in 43 US states including Oregon,...
Resource Type:: Dissertation
Full Text:: Walton for providing much-needed support with the entomological aspects of the project. I would

A microscopic and phenological study of pollen development and bloom in selected cultivars of hazelnut (Corylus avellana)

Creator:: Tiyayon, Chantalak
Abstract:: Pollen development is an important process in male flower development, the timing of which may be correlated with time of pollen shed in hazelnut (Corylus avellana L.). Early to very late blooming cultivars were identified and the relationship of microsporogenesis and microgametogenesis, and time of pollen shed were studied in...
Resource Type:: Dissertation
Full Text:: expertise in hazelnut, Dr. Vaughn Walton for his assistance in the phenology study, Dr. Nahla Bassil for

Habitat management for beneficial insects on Willamette Valley vegetable and berry farms

Creator:: Russell, Michael C.
Abstract:: Conservation biological control involves manipulating farm landscapes or management systems to enhance populations of beneficial predators of agricultural pests. Farmscaping is one aspect of conservation biological control where predators of important pests are identified, the availability on the farm landscape of resources and habitat components needed by the beneficials to...
Resource Type:: Dissertation

Monitoring and Evaluating the Susceptibility of Colorado Potato Beetle, Leptinotarsa decemlineata Say, against Insecticides in the Columbia Basin of Northeastern Oregon

Creator:: Yang, Pahoua
Abstract:: Potato (Solanum tuberosum L.) is among one of the largest and most important staple food crops in the world. One of the most productive growing potato regions is the USA is the Oregon and Washington Columbia Basin. Both states produce approximately 26% of the USA potatoes in the market. In...
Resource Type:: Masters Thesis

"Identity in the making" in an adolescent new media maker experience : the role of interest, figured worlds, and use of authentic tools and practices

Creator:: Wyld, Jennifer N.
Abstract:: Human development researchers consider adolescence a rich time for interest development and identity exploration. A relatively new movement in the Free-Choice Learning (FCL) arena, the Maker movement, offers learners interest-driven, experiential, often collaborative, and process-oriented activities ranging from game design (computer-based and otherwise) and robotics, to sewing LEDs into clothing...
Resource Type:: Dissertation
Full Text:: to Vaughn Walton, thanks so much for stepping in at the last minute as my GCR, so I could finish

ScholarsArchive@OSU

Evaluating Leucopis species (Diptera: Chamaemyiidae) from the Pacific Northwest as potential biological control agents of the hemlock woolly adelgid (Hemiptera: Adelgidae)

Alternative Controls for Stephanitis pyrioides in the Pacific Northwest.

Colony Level Infection of Honey Bee Gut Pathogen, Nosema ceranae and Role of Pollen Nutrition in Nosema ceranae Infection and Bee Survival

Biology and Management of Pacific Flatheaded Borer, Chrysobothris mali, in Hazelnut

Physiological effects of non-nutritive sugars on the survivorship and fecundity of Drosophila suzukii (Diptera: Drosophilidae)

Brown Marmorated Stink Bug (BMSB), Halyomorpha halys Taint in Wine : Impact on Wine Sensory, Effect of Wine-processing and Management Techniques

A microscopic and phenological study of pollen development and bloom in selected cultivars of hazelnut (Corylus avellana)

Habitat management for beneficial insects on Willamette Valley vegetable and berry farms

Monitoring and Evaluating the Susceptibility of Colorado Potato Beetle, Leptinotarsa decemlineata Say, against Insecticides in the Columbia Basin of Northeastern Oregon

"Identity in the making" in an adolescent new media maker experience : the role of interest, figured worlds, and use of authentic tools and practices

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