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Coniothyrium rose canker in Oregon

Creator:: Intrama, Siriphong
Abstract:: An isolate of Coniothyrium obtained from a stem canker on Nocturne rose from the Botany Department Farm, Corvallis, Oregon was studied with respect to morphological and cultural characters, pathogenicity and mineral nutrition. The hyphae of the isolate were smooth, septate and branched. The hyphal cells averaged 16.37 X 3.52 microns....
Resource Type:: Dissertation

Effects of volatile fungicides on Sphaerotheca pannosa on rose

Creator:: Gallian, John J.
Resource Type:: Dissertation
Full Text:: and the most serious disease faced by the cut rose producer. Control in the greenhouse has been

The insect pests of the rose

Creator:: Oregon State College. Agricultural Experiment Station and Mote, Don C. (Don Carlos), 1887-
Abstract:: Published March 1942. 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:: as listed under "POISON SPRAYS". 4. Rose curculio - Often serious pest; present in western Oregon

Relation of nitrogenous substances in rose leaves to powdery mildew resistance

Creator:: Bartlett, Allan B.
Abstract:: There is considerable variation among rose varieties in susceptibility to mildew, and as a result of maturation, leaves of most susceptible varieties become resistant to infection. The nature of resistance has been sought in various studies involving environmental, morphological, and physiological factors. An attempt was made in the present investigation...
Resource Type:: Dissertation
Full Text:: disease. Two or more extracts from healthy and diseased leaves from each of the six rose varieties were

The insect pests of the rose

Creator:: Oregon State College. Agricultural Experiment Station and Mote, Don C. (Don Carlos), 1887-
Abstract:: Published March 1936. 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:: dwarf and die. a. Winter passed as small, elongate, ebony black eggs on rose canes. b. Maturity

Isolation, purification, serology and nature of rose mosaic virus

Creator:: Halliwell, R. S. (Robert S.)
Resource Type:: Dissertation
Full Text:: in Oregon rose nurseries, and in test gardens containing roses from all parts of the United States

Pathogenic specialization and heterothallism in Sphaerotheca pannosa var. rosae

Creator:: Bender, Carol Lavane
Abstract:: Studies were conducted on pathogenic specialization and heterothallism in Sphaerotheca pannosa var. rosae, causal agent of rose powdery mildew. Methods were developed for isolation and identification of Sphaerotheca pannosa var. rosae races on rose. Monoconidial isolates were initiated on detached leaves, increased on host plants, and inoculated to rose cultivars...
Resource Type:: Masters Thesis
Full Text:: pannosa var. rosae, causal agent of rose powdery mildew. Methods were developed for isolation and

Controlling diseases and aphids on your roses

Creator:: Oregon State University. Extension Service, Hoffer, M. (Molly), Pscheidt, Jay William, and DeAngelis, Jack D.
Abstract:: Published August 2000. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog/catalog
Resource Type:: Technical Report
Full Text:: STRATEGY Consult the “Rose care schedule” (page 7) to plan a disease and pest control schedule for your

Studies on viruses isolated from roses with rose mosaic symptoms

Creator:: Watson, Thomas Ray
Abstract:: Previous work on the rose mosaic virus has produced uncertainty concerning the identity and properties of this virus. This work was undertaken to help establish the true identity of the virus and to determine some of its properties. A mechanically transmissible virus associated with rose mosaic virus disease of Rosa...
Resource Type:: Masters Thesis
Full Text:: symptoms of the rose mosaic virus disease, was ob- tained from the Chase Gardens in Eugene, Oregon. The

Control of the black mold diseases of Manetti rose rootstocks

Creator:: Milbrath, John A., 1909-, McWhorter, Frank, 1896-1985, and Oregon State College. Agricultural Experiment Station
Abstract:: Published April 1946. 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:: tnformation No. 378 April 194.6 CONTROL OF THE BLACK MOLD DISEASE CF MANETTI ROSE ROOTSTOCK by J. A

ScholarsArchive@OSU

Coniothyrium rose canker in Oregon

Effects of volatile fungicides on Sphaerotheca pannosa on rose

The insect pests of the rose

Relation of nitrogenous substances in rose leaves to powdery mildew resistance

The insect pests of the rose

Isolation, purification, serology and nature of rose mosaic virus

Pathogenic specialization and heterothallism in Sphaerotheca pannosa var. rosae

Controlling diseases and aphids on your roses

Studies on viruses isolated from roses with rose mosaic symptoms

Control of the black mold diseases of Manetti rose rootstocks

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