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Filtering by: Subject Pear -- Diseases and pests -- Biological control Remove constraint Subject: Pear -- Diseases and pests -- Biological control

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Natural spread of and competition between two bacterial antagonists of the fire blight pathogen, Erwinia amylovora, on blossoms of Bartlett pear

Creator:

Nuclo, Raymond L.

Resource Type:

Masters Thesis
Effect of iron on biological control of fire blight by Pseudomonas fluorescens A506

Creator:

Temple, Todd N.

Abstract:

Competitive exclusion has been the mechanism hypothesized to account for the biological control of fire blight disease of pear and apple by the bacterium Pseudomonas fluorescens A506 (A506). Recent laboratory assays demonstrated, however, that A506 produces an antibiotic that is toxic to the fire blight pathogen, Erwinia amylovora, when cultured...

Resource Type:

Masters Thesis

Full Text:

of fire blight disease of pear and apple by the bacterium Pseudomonas fluorescens A506 (A506
The potential of endemic natural enemies to suppress pear psylla, Cacopsylla pyricola Förster, in the Hood River Valley, Oregon

Creator:

Booth, Steven R.

Abstract:

This thesis addressed the potential of endemic predaceous and parasitic arthropods of the Hood River Valley, Oregon to suppress the pear psylla, Cacopsylla pyricola F8rster. Natural enemies adequately suppressed psylla in three of seven unsprayed orchards of differing vegetational settings, orchard age, and size. Relatively few psylla natural enemies dispersed...

Resource Type:

Dissertation

Full Text:

immatures and their natural enemies 64 Psylla russet damage 68 Incidence of pear psylla biological control
Enhancement of biological control for postharvest diseases of pear

Creator:

Benbow, Jesse M.

Abstract:

Yeast biocontrol agents that were applied to 'Bose' and 'Anjou' pears in the field up to three weeks prior to harvest were found to survive on the fruit at high population levels on both pear varieties. Cryptococcus infirmo-miniatus, Cryptococcus laurentii, and Rhodotorula glutinis maintained populations averaging 5 x 10⁶ cfu/fruit...

Resource Type:

Masters Thesis

Full Text:

4 Chapter 2 Fruit Surface Colonization and Biological Control of Postharvest 6 Disease by
The control of core breakdown in pears

Creator:

Oregon Agricultural College. Experiment Station and Hartman, Henry, 1889-

Abstract:

Published June 1925. 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:

effective weapon in the control of core break-down. Core break-down has generally been controlled and pears
Relative efficacy of natural enemies of pear psylla

Creator:

Higbee, Bradley S.

Resource Type:

Conference Proceeding

Full Text:

II. Pome Fruits c. Biological Control 1. Pear Psylla
Pesticide bioassays on pear psylla predators [1993]

Creator:

Higbee, Bradley S.

Resource Type:

Conference Proceeding

Full Text:

II. Pome Fruits c. Biological Control 1. Pear Psylla
Biology : pear psylla - pears [1993]

Creator:

Horton, David R.

Resource Type:

Conference Proceeding

Full Text:

David R. Horton USDA-ARS, Yakima, WA Due to resistance and environmental concerns, future control
Pesticide bioassays on pear psylla predators [1994]

Creator:

Higbee, Bradley S.

Resource Type:

Conference Proceeding

Full Text:

II. Pome Fruits c. Biological Control 1. Pear Psylla
Chemical control : pear scab (Venturia pirina)

Creator:

Elkins, Rachel B. and Gubler, Doug

Resource Type:

Conference Proceeding

Full Text:

reduced both early season incidence and severity of pear scab compared to the normal practice of treating

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Academic Affiliation

Botany and Plant Pathology35
Entomology32
Horticulture27
Crop and Soil Science16
Forest Science6
more Academic Affiliations »

Advisor

Berry, Ralph E.6
Morrell, Jeffrey J.6
Aliniazee, M. T.5
Mallory Smith, Carol A.5
Croft, Brian A.4
more Advisors »

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1917 to 2017

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Unknown 848

Committee Member

Johnson, Kenneth8
Fisher, Glenn5
Johnson, Ken5
Hayes, Patrick4
Jepson, Paul4
more Committee Members »

Conference Name

Western Orchard Pest and Disease Management Conference333
Pacific Northwest Insect Management Conference65
Pacific Northwest Vegetable Insect Conference10

Conference Section/Track

Pome Fruits158
Deciduous Orchard Diseases40
Chemical Control/New Products36
Foliage and Seed Feeding Pests22
Nuts21
more Conference Section/Tracks »

Creator

Oregon State University. Extension Service179
Oregon State College. Agricultural Experiment Station109
Pscheidt, Jay W.94
Peachey, Ronald Edward37
Peachey, Ed34
more Creators »

Contributor

Mack, H. J.1

Date

Date range begin – Date range end

Current results range from 1895 to 2021

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Decade

1990-1999269
1980-1989142
1970-197947
1960-196928
1950-195922
1940-194960
1930-193951
1920-192913
1910-19195
1900-19095
more Decade »

Degree Field

Entomology32
Botany and Plant Pathology26
Horticulture25
Crop Science13
Forest Science6
more Degree Fields »

Degree Level

Master's82
Doctoral42
Bachelor's6

Degree Name

Master of Science (M.S.)81
Doctor of Philosophy (Ph.D.)42
Bachelor of Science (B.S.)4
Master of Agriculture (M.Ag.)1

File Format

pdf173
application/pdf81

Language

English [eng]973
Spanish; Castilian [spa]4

License

All rights reserved54
Attribution-NonCommercial 4.0 (CC BY-NC 4.0)2

Non-Academic Affiliation

Oregon State University. Extension Service187
Oregon State University. Agricultural Experiment Station180
Oregon State University. Graduate School124

Peer Reviewed

No557
Yes156

Resource Type

Conference Proceeding409
Technical Report404
Masters Thesis82
Dissertation42
Other33
more Resource Types »

Rights Statement

In Copyright578
Copyright Not Evaluated376
No Copyright - United States22

Subject

Agricultural pests -- Control -- Congresses388
Apples -- Diseases and pests134
Pears -- Diseases and pests125
Codling moth -- Control58
Insecticides -- Research54
more Subjects »

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