Index Catalog // ScholarsArchive@OSU

Insect parasites of the omnivorous leaf tier, Cnephasia longana (Haworth) in Oregon

Creator:: Poonyathawon, Panya
Abstract:: The purpose of this study was to determine the present status of introduced parasites of the omnivorous leaf tier, Cnephasia longana (Haworth) in Oregon. The omnivorous leaf tier is native to Europe. It was introduced into North America around 1929 and became a serious pest of economic crops such as...
Resource Type:: Masters Thesis
Full Text:: biological control agent in regulating omnivorous leaf tier population in Western Oregon. Insect

Studies of the biology and effectiveness of Laricobius erichsonii Rosenh. (Coleoptera: Derodontidae), an European predator of the balsam woolly aphid, Adelges piceae (Ratz.) (Homoptera: Adelgidae)

Creator:: Buffam, Paul Edwin
Abstract:: The balsam woolly aphid (Adelges piceae (Ratz)), an European pest of conifers, was first discovered in the Pacific Northwest shortly after 1930. Control measures of a chemical, silvicultural, or biological nature have been proposed. However, present control methods are either too costly or do not result in satisfactory control of...
Resource Type:: Masters Thesis

Seasonal abundance of Anagrus spp. egg parasitoids of grape leafhoppers in Central Washington

Creator:: Wright, Larry C., Storm, C. P., and James, David G.
Resource Type:: Conference Proceeding
Full Text:: spring appears to bethe main obstacle to biological control. We have been studying Anagrus spp. in

Improvement of biological control agents : laboratory selection for fast larval development in the convergent lady beetle, Hippodamia convergens guerin-Méneville (Coleoptera: Coccinellidae)

Creator:: Rodriguez-Saona, Cesar Ramiro
Abstract:: Hippodamia convergens Guerin-Meneville was selected for rapid development through five generations at four constant temperatures (18, 22, 26, and 30°C). Two levels of selection were used: intense and moderate. Differences in developmental rate, survivorship, live adult weight, aphid consumption, adult longevity, and fecundity were measured for both groups and an...
Resource Type:: Masters Thesis
Full Text:: biological control programs are that it can be directed at a particular pest, a single program may be

Entomopathogenic nematodes for biological control of the Colorado potato beetle, Leptinotarsa decemlineata (Say)

Creator:: Armer, Christine Andrea
Abstract:: The Colorado potato beetle (CPB), Leptinotarsa decemlineata (Say), is the most devastating foliage-feeding pest of potatoes in the United States. Potential biological control agents include the nematodes Heterorhabditis marelatus Liu & Berry and Steinernema riobrave Cabanillas, Poinar & Raulston, which provided nearly 100% CPB control in previous laboratory trials. In...
Resource Type:: Dissertation
Full Text:: : Entornopathogenic Nematodes for Biological Control of the Colorado Potato Beetle, Leptinotarsa decemlineata (Say

Assessing the safety of weed biological control : a case study of the cinnabar moth Tyria jacobaeae

Creator:: Fuller, Jason L.
Abstract:: The cinnabar moth, Tyria jacobaeae (L.) (Lepidoptera:Arctiidae), was released in 1959 to control the grassland weed tansy ragwort, Senecio jacobaea L. (Asteraceae), despite evidence that caterpillars of this species can feed on native plants within the genera Senecio and Packera. Previous studies confirmed the moth's ability to develop on the...
Resource Type:: Masters Thesis
Full Text:: case study of the risk posed to non-target plants by a biological control insect for several reasons

An evaluation of biological control of Linaria dalmatica with Mecinus janthinus in Oregon

Creator:: Park, Alexander
Abstract:: Dalmatian toadflax (Linaria dalmatica) has become a prolific invasive plant of rangelands in Oregon since its arrival in the early 20th century. In 2001, the Oregon Department of Agriculture initiated a release program promoting the distribution of the stem-boring weevil, Mecinus janthinus as classical biological control agent to reduce densities...
Resource Type:: Masters Thesis
Full Text:: An Evaluation of Biological Control of Linaria dalmatica with

Biotic barriers to colonizing new hosts by the cinnabar moth Tyria jacobaeae (L.)(Lepidoptera: Arctiidae)

Creator:: Karacetin, Evrim
Abstract:: The cinnabar moth (Tyria jacobaeae (L.), Lepidoptera: Arctiidae) is an icon in population ecology and biological control that has recently lost its shine based on evidence that (1) it is less effective than alternatives (such as the ragwort flea beetle Longitarsus jacobaeae (Waterhouse) (Coleoptera: Chrysomelidae) for controlling ragwort Senecio jacobaea...
Resource Type:: Dissertation
Full Text:: hosts by this phytophagous insect and thereby mitigate risk of biological control to nontarget plant

Use of insect pathogens for control of codling moth and other lepidopteran pests of apple in the Pacific Northwest of the United States

Creator:: Lacey, Lawrence A. and Unruh, Thomas R.
Resource Type:: Conference Proceeding
Full Text:: USE OF INSECT PATHOGENS FOR CONTROL OF CODLING MOTH

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

Creator:: Takeyasu, Joyce
Resource Type:: Masters Thesis
Full Text:: ) strain All, is an effective biological control agent, especially against insect pests found in cryptic

ScholarsArchive@OSU

Insect parasites of the omnivorous leaf tier, Cnephasia longana (Haworth) in Oregon

Studies of the biology and effectiveness of Laricobius erichsonii Rosenh. (Coleoptera: Derodontidae), an European predator of the balsam woolly aphid, Adelges piceae (Ratz.) (Homoptera: Adelgidae)

Seasonal abundance of Anagrus spp. egg parasitoids of grape leafhoppers in Central Washington

Improvement of biological control agents : laboratory selection for fast larval development in the convergent lady beetle, Hippodamia convergens guerin-Méneville (Coleoptera: Coccinellidae)

Entomopathogenic nematodes for biological control of the Colorado potato beetle, Leptinotarsa decemlineata (Say)

Assessing the safety of weed biological control : a case study of the cinnabar moth Tyria jacobaeae

An evaluation of biological control of Linaria dalmatica with Mecinus janthinus in Oregon

Biotic barriers to colonizing new hosts by the cinnabar moth Tyria jacobaeae (L.)(Lepidoptera: Arctiidae)

Use of insect pathogens for control of codling moth and other lepidopteran pests of apple in the Pacific Northwest of the United States

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

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