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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

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:: . A. San Jose, cottony scale and others may attack the rose. B. Control - Spray during dormant season

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:: reaches maturity; mutliplies rapidly. B. Control. a. If in small quantities, shake or pick from the rose

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

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

The biology and control of Phytophthora root and stem rot of apple rootstocks from stool beds

Creator:: Tidball, Carolyn Jean
Abstract:: The present studies were conducted to better understand the etiology, epidemiology and potential control of the Phytophthora stem root rot as it occurs in apple stool beds. Symptoms of Phytophthora root and stem rot occurred as early as May and continued to develop throughout the growing season. Sunken brown-black lesions...
Resource Type:: Masters Thesis
Full Text:: Identification of Species 19 Pathogenicity Tests 22 Fungicide Residual and Disease Control 25 Bioassay of

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:: govern performance in a rootstock and a rose grown for floricultural purposes are quite different

Control of the black mold fungus Chalaropsis thielavioides Peyr. on Manetti rose

Creator:: Milbrath, John A., 1909-
Abstract:: Published May 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:: as a wound parasite on walnuts and Manetti rose. Since C. tlrie- The disease is perpetuated by

Crown gall of roses

Creator:: Oregon State College. Agricultural Experiment Station, McWhorter, Frank, 1896-1985, and Weiss, Freeman
Abstract:: Published January 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:: infected plants frequently form large galL within the "crown" region, is common on rose, apple, pear, and

ScholarsArchive@OSU

Control of the black mold diseases of Manetti rose rootstocks

The insect pests of the rose

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

Coniothyrium rose canker in Oregon

The biology and control of Phytophthora root and stem rot of apple rootstocks from stool beds

Pathogenic specialization and heterothallism in Sphaerotheca pannosa var. rosae

Control of the black mold fungus Chalaropsis thielavioides Peyr. on Manetti rose

Crown gall of roses

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