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Partial characterization of the P4 pathotype of pea seedborne mosaic virus

Creator:: Kohnen, Paul D.
Abstract:: Biological, serological, and molecular characteristics of the P4 pathotype of pea seedborne mosaic potyvirus (PSbMV) were investigated. The characterization allowed P4 to be differentiated from other pathotypes of the same virus. P4 was distinguished from P1 on the basis of host symptomatology. It induced varied, but often distinctive symptoms in...
Resource Type:: Dissertation
Full Text:: of Pea Seedborne Mosaic V Abstract approved: Richar 0. Hafipton Biological, serological, and

Irrigation and plant density effects on head rot and yield of broccoli

Creator:: Ludy, Robin L.
Abstract:: Effects of amount of applied water and frequency of irrigation on head rot and yield of three broccoli cultivars were evaluated in 1987 and 1988. Two irrigation frequencies were established with a line-source sprinkler system for 5.5 weeks during heading. The low-frequency experiment was watered once per week and the...
Resource Type:: Masters Thesis
Full Text:: weather conditions. To date, no chemicals have provided adequate control of this disease and only

Isolation of putative pAgK84 transconjugants from commerical cherry and raspberry plants treated with Agrobacterium radiobacter strain K84

Creator:: Lu, Shu-Fen
Resource Type:: Masters Thesis
Full Text:: gall disease was found on cherry trees and raspberry plants in nurseries where K84 had failed to

Assays to determine tolerance of cherry rootstock to bacterial canker caused by Pseudomonas syringae pv. syringae

Creator:: Krzesinska, Elzbieta Z.
Abstract:: Bacterial canker, caused by Pseudomonas syringae pv. syringae is recognized as one of the greatest limiting factors in cherry production in Oregon. Disease incidence may be decreased when susceptible cultivars are high-grafted onto tolerant/resistant rootstocks. This research was begun to develop a rapid screening method which could be used to...
Resource Type:: Masters Thesis
Full Text:: usable criterion of the disease in this assay. 'Napoleon' and 'Corum' had significantly higher

Efficacy of Bacillus thuringienses for control of overwintered peach twig borer, Anarsia lineatella in almonds

Creator:: Edstrom, John P.
Resource Type:: Conference Proceeding

Demonstration of the Metos® Electronic Weather Station and Pest Forecasting System

Creator:: Green, Thomas A.
Resource Type:: Conference Proceeding
Full Text:: & sampling 1. Apple scab and fireblight, Apple and Pear Thomas A. Green Pest Management Supply Inc., P.O

Surveying barriers to the effective implementation of mating disruption for the control of codling moth (CMMD)

Creator:: Weddle, Patrick W.
Resource Type:: Conference Proceeding
Full Text:: and pears Patrick W. Weddle Weddle, Hansen & Associates, Inc. P.O. Box 529 Placerville, CA 95667

Thresholds, monitoring and sampling : fire blight (Erwinia amylovora), pear and apple

Creator:: Smith, Timothy J.
Resource Type:: Conference Proceeding
Full Text:: . Temperatures for the four days preceding each rainfall were monitored and the total degree hours over 15.5°C

Differential mortality of twospotted spider mite on various cultivars of apple and pear after treatment with Agri-Mek

Creator:: Andersen, Astrid H. and Beers, Elizabeth H.
Resource Type:: Conference Proceeding
Full Text:: spider mite (Tetranychus urticae); apple and pear. Astrid H. Andersen and Elizabeth H. Beers Tree Fruit

Soil water pressure and Verticillium dahliae interactions on potato

Creator:: Gaudreault, Suzanne M.
Abstract:: A greenhouse experiment was conducted in 1991 and in 1992 to determine the effect of soil water pressure on potato (cv Russet Burbank) plant growth and infection by Verticillium dahliae. Soil water pressures of -0.01, -0.03, -0.08, or -0.15 MPa were combined factorially with two inoculum concentrations, 0 or 10...
Resource Type:: Masters Thesis
Full Text:: wk reduced V. dahliae populations in soil and suppressed disease on cotton. This effect increased

ScholarsArchive@OSU

Partial characterization of the P4 pathotype of pea seedborne mosaic virus

Irrigation and plant density effects on head rot and yield of broccoli

Isolation of putative pAgK84 transconjugants from commerical cherry and raspberry plants treated with Agrobacterium radiobacter strain K84

Assays to determine tolerance of cherry rootstock to bacterial canker caused by Pseudomonas syringae pv. syringae

Efficacy of Bacillus thuringienses for control of overwintered peach twig borer, Anarsia lineatella in almonds

Demonstration of the Metos® Electronic Weather Station and Pest Forecasting System

Surveying barriers to the effective implementation of mating disruption for the control of codling moth (CMMD)

Thresholds, monitoring and sampling : fire blight (Erwinia amylovora), pear and apple

Differential mortality of twospotted spider mite on various cultivars of apple and pear after treatment with Agri-Mek

Soil water pressure and Verticillium dahliae interactions on potato

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