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Certain investigations pertaining to pear decline in Oregon

Creator:: Hartman, Henry, 1889- and Oregon State University. Agricultural Experiment Station
Abstract:: Published December 1962. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: responsible for pest and disease control programs as these apply to different climatic and geographical

Induction of apple defense genes by Erwinia amylovora and biological control agents

Creator:: Bauer, Lisa M.
Abstract:: Fire blight is a serious disease of apple and pear trees caused by the bacterium, Erwinia amylovora. This bacterium harbors a pathogenesis mechanism known as the Hrp secretory operon which induces some resistance genes and suppresses other resistance genes in the host plant following invasion. While previous researchers analyzed expression...
Resource Type:: Honors College Thesis
Full Text:: disease of apple and pear trees caused by the bacterium, Erwinia amylovora. This bacterium harbors a

DNA markers linked to novel sources of resistance to eastern filbert blight in European hazelnut (Corylus avellana L.)

Creator:: Sathuvalli, Vidyasagar R.
Abstract:: The hundred-year history of the hazelnut industry in the Pacific Northwest is threatened by eastern filbert blight (EFB) caused by the fungus Anisogramma anomala (Peck) E. Müller. Marker-assisted selection (MAS) has been extensively used for ‘Gasaway’ resistance in the hazelnut breeding program at Oregon State University. Concern over breakdown of...
Resource Type:: Masters Thesis
Full Text:: , ‘Ratoli’ and OSU 759.010) have shown no signs or symptoms of the disease following a series of

Changes in small-mammal populations related to abundance of Douglas-fir seed

Creator:: Hooven, Edward F. (Edward Frank) and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: (Peromyscus maniculatus) 30 percent, Oregon creeping vole (Microtus egom) 12 percent, and jumping mouse (Zapus

The Biology and control of the septoria diseases of winter wheat in western Oregon

Creator:: DiLeone, Julie A., Coakley, Stella M., Karow, Russ, Mundt, Christopher C., and Oregon State University. Agricultural Experiment Station
Abstract:: The septoria diseases of winter wheat are a limiting factor to wheat production in the Willamette Valley. This publication will describe the symptoms and development of the septoria diseases, including the influence of environmental conditions, the reactions of different cultivars to Septoria, the impact of Septoria on yield, and control...
Resource Type:: Technical Report
Full Text:: with 4 oz of Benlate 50 WP (Oregon and Washington only) is also effective at reducing septoria disease

Reduction in growth of pole-sized Ponderosa pine related to a Pandora moth outbreak in central Oregon

Creator:: Cochran, P. H.
Abstract:: A pandora moth (Coloradia pandora Blake) outbreak began in 1991 in a ponderosa pine (Pinus ponderosa Dougl. ex. Laws) spacing study area that also included scattered sugar pine (P. lambertiana Dougl). The relation of defoliation to five tree spacings (with and without understory vegetation) was examined, and stand growth reduction...
Resource Type:: Technical Report

Damage from laminated root rot at the Black Rock Forest management research area in western Oregon

Creator:: Lawson, Thomas T., Berg, Alan B., Hansen, Everett M., and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: the Cascade Mountains in Oregon and Washington (Childs and Shea 1967). Thus, in a region highly

Biology of sweet cherry powdery mildew

Creator:: Calabro, Jill M.
Abstract:: The Pacific Northwest has become one of the nation’s premier sweet cherry, Prunus avium, production areas. As production of sweet cherries has flourished in Oregon and Washington, so has powdery mildew, caused by the fungus Podosphaera clandestina, which infects both foliage and fruit causing severe economic damage to growers. Sweet...
Resource Type:: Dissertation
Full Text:: , Prunus avium, production areas. As production of sweet cherries has flourished in Oregon and

Effects of Phellinus weirii on plant community composition and succession of mature and old-growth Douglas-fir forests

Creator:: Holah, Jennifer C.
Abstract:: Disease is often overlooked as a natural disturbance agent in plant communities. This study examines what effects, if any, a disease-mediated disturbance has on the plant community as a whole in old-growth and mature forests of western Oregon. Phellinus weirii (Murrill) Gilbertson (Family: Hymenochaetaceae) is a native root-rotting pathogen that...
Resource Type:: Masters Thesis

Orchard spraying in Oregon 1916. Spraying machinery

Creator:: Barss, H. P. (Howard Phillips), 1885-, Lovett, A. L. (Arthur Lester), 1885-1924, Gardner, Victor Ray, 1885-, and Oregon Agricultural College. Extension Service
Abstract:: Published 1916. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: coating. The Woolly Apple Aphis is a serious orchard pest of both apple and pear. It attacks the tree

ScholarsArchive@OSU

Certain investigations pertaining to pear decline in Oregon

Induction of apple defense genes by Erwinia amylovora and biological control agents

DNA markers linked to novel sources of resistance to eastern filbert blight in European hazelnut (Corylus avellana L.)

Changes in small-mammal populations related to abundance of Douglas-fir seed

The Biology and control of the septoria diseases of winter wheat in western Oregon

Reduction in growth of pole-sized Ponderosa pine related to a Pandora moth outbreak in central Oregon

Damage from laminated root rot at the Black Rock Forest management research area in western Oregon

Biology of sweet cherry powdery mildew

Effects of Phellinus weirii on plant community composition and succession of mature and old-growth Douglas-fir forests

Orchard spraying in Oregon 1916. Spraying machinery

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