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Ecology and Management of Soilborne Plant Pathogens
Ecology and Management of Soilborne Plant Pathogens
Proceedings of Section 5 of the Fourth International Congress of Plant Pathology, University of Melbourne, Melbourne, Australia, August 1983.
Item No. 40667
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Ecology and Management of Soilborne Plant Pathogens is a compilation of papers from the Fourth International Congress of Plant Pathology in Melbourn, Australia.

Topics Covered:

  • Ecology and epidemology
  • Colonization of roots and rhizosphere
  • Biological control
  • Plant response and resistance
  • Influence of soil, environment, and nutrition
  • Management practices, chemical control, and solarization

From the Preface:

The Fourth International Congress of Plant Pathology, held in Melbourne in August 1983, provided a rare opportunity for many overseas scientists working on soilborne plant pathogens to visit Australia and for us Australian scientists to meet them on their own ground.

Because of its isolation, Australia’s geography is little known overseas. Our climates range from wet tropical and monsoonal conditions in the north, through warm temperate an temperate in the east, to cool temperate in the far south of Victoria and in Tasmania. Westward are very large areas of arid and desert lands in which no agriculture and little grazing is practiced. In southern South Australia and the southwest corner of Western Australia, a Mediterranean climate prevails, with hot dry summers an cool, moist winters.

The complexity of the biological environment in soil and the problems arising from the use of fungicides to remove particular components of the soil biota on a broad-acre basis lead many root pathologists to dream of the day when resistance to plant pathogens can be provided within the plant. Plant selection and breeding have been successful in developing resistant lines for many root diseases, but many problems remain – including those caused by the diversity of strains within many root pathogens and the interactions of soil and seasonal conditions with the resistance or tolerance of plants to root disease.

We hope these Proceedings will inspire more scientists to enter the difficult area of root disease research, bringing papers to the next Congress that will report further successes in the quest to control root diseases that thus to increase world food production.

Ecology and Management of Soilborne Plant Pathogens


The Study of Soilborne Plant Pathogens: Changing Outlook or More of the Same?

Part 1: Ecology and Epidemiology

Characteristics of Trends in Disease Caused by Soilborne Pathogens with Spring
     Barley Monoculture
Mycophagous Amoebas from Arable, Pasture, and Forest Soils
Northern Poor Root Syndrome of Sugarcane in Australia
Effects of Soil Insects on Populations and Germination of Fungal Propagules
graminis var. tritici over a Range of Matric Potentials
Use of Aerial Photography for Assessing Soilborne Disease
Isolation and Characterization of Plasmid DNA in the Fungus Rhizoctonia solani
Sharp Eyespot of Cereals and Rhizoctonia of Potato
Saprophytic Survival of Gaeumannomyces graminis var. tritici in the Victorian Mallee, Australia
The Changing Nature of Stalk Rot of Maize Caused by Gibberella zeae
Collar Rot of Passion Fruit Possibly Caused by Nectria Haematococca in Taiwan
Survival of Phytophthora cinnamomi in Eucalyptus Roots Buried in Forest Soils
The Rhizoctonia Disease Complex of Wheat
Population and Survival of Sclerotia of Rhizoctonia solani in Soil
Rhizoctonia in South Australian Wheat Fields
Anastomosis Groups of Rhizoctonia solani and Binucleate Rhizoctonia
A Study of Pepper Wilt in Northern Iraq
Rhizoctonia on Small-Grain Cereals in Great Britain
Fungal Invasion of Clover and Grass Roots in New Zealand Pasture Soils
Pathogenic Rhizoctonia and Orchids
Origin and Distribution of Phytophthora cinnamomi

Part 2: Colonization of Roots and Rhizosphere

The Biology of the Rhizosphere
Mode of Colonization of Roots by Verticillium and Fusarium
Dynamics of Root Colonization by the Take-all Fungus
A Mathematical Model of Vesicular-Arbuscular Mycorrhizal Infection in Roots of Trifolium
Rhizoplane Mycoflora of Gahnia radula and Isopogon ceratophyllus in Soils Infested and
     Free from Phytophthora cinnamomi

Part 3: Biological Control

Soils Suppressive to Fusarium Wilt: Mechanisms and Management of Suppressiveness
Reduction of Take-all by Mycophagous Amoebas in Pot Bioassays
Trichoderma as a Biocontrol Agent Against Soilborne Root pathogens
Chemical Factors in Soils Suppressive to Pythium ultimum
Influence of Trichoderma on Survival of Thanatephorus cucumeris in Association with Rice
     in the Tropics
Biological Control of Fusarium Wilt of Sweet Potato with Cross-Protection by Nonpathogenic Fusarium oxysporum
Integrated Biological and Chemical Control of Sclerotial Pathogens
Yield Depressions in Narrow Rotations Caused by Unknown Microbial Factors and Their
     Suppression by Selected Pseudomonads
Behavior of Root Region Microfungi of Pigeon Pea Against Fusarium udum
Control of Verticillium dahliae by Coating Potato Seed Pieces with Antagonistic Bacteria
Application of Fluorescent Pseudomonads to Control Root Diseases
The Role of Seeds in the Delivery of Antagonists into the Rhizospher
Interactions Between Microbial Residents of Cereal Roots
Survival of Fungal Antagonists of Gaeumannomyces graminis var. tritici
Control of Wheat Take-all and Ophiobolus Patch of Turfgrass by Fluorescent Pseudomonads

Part 4: Plant Responses and Resistance

Role of Plant Breeding in controlling Soilborne Diseases of Cereals
Phytophthora drechsleri Causes Crown Rot and the Accumulation of Antifungal Compounds in Cucurbits
Changes in Root Tissue Permeability Associated with Infection by Phytophthora cinnamomi
Stability of Verticillium Resistance of Potato Clones and Changes in Soilborne Populations
     with Potato Monoculture
Field Resistance of Wheat Cultivars to Crown Rot (Fusarium graminearum Group 1)
Variability in Phytophthora cactorum in India
Glasshouse Test for Tolerance of Wheat to Crown Rot Caused by Fusarium
Group 1
Development of Inoculation Technique for Rhizoctonia solani and Its Application to Screening Cereal Cultivars for Resistance
Phytophthora cinnamomi
A Study of Resistance in Three Native Monocotyledons That Invade Diseased Victorian
Relative Susceptibility of Wheat, Rye, and Triticale to Isolates of Take-all
New Inoculation Technique for Gaeumannomyces graminis var. tritici to Measure Dose
     Response and Resistance in Wheat in Field Experiments

Part 5: Influence of Soil, Environment, and Nutrition

Soil as an Environment for the Growth of Root Pathogens
Lethal Temperatures of Soil Fungi
Relation Between Root Infection with Phytophthora cinnamomi and Water Relations in
     Susceptible and Field-resistant Eucalyptus Species
Effects of Soil Temperature, Moisture, and Timing of Irrigation on Powdery Scab of
Influence of Depleted Oxygen Supply on Phytophthora Root Rot of Safflower in Nutrient
Pea Root Pathogen Populations in Relation to Soil Structure, Compaction, and Water
Wax Layers for Partitioning Soil Moisture Zones to Study the Infection of Wheat Seedlings
     by Fusarium graminearum
Effect of Frost on Fusarium Root Rot of Alfalfa and possibility of Double Trait Selection
Reduction of Infection of Wheat Roots by Gaeumannomyces graminis var. tritici with
     Application of Manganese to Soil
Effect of Parent Materials Derived from Different Geological Strata on Suppressiveness of
     Soils to Black Root Rot of Tobacco
Reduction in Infection of Wheat Roots by Gaeumannomyces graminis var. tritici with
     Application of manganese to Soil
Effect of Parent Materials Derived from Different Geological Strata on Suppressiveness of
     Soils to Black Root Rot of Tobacco
Effect of Varied NPK Nutrition and Inoculum Density on Yield Losses of Wheat Caused by
Influence of Environmental Factors and Sclerotial Origin and Parasitism of Sclerotinia
by Coniothyrium minitans

Part 6: Management Practices, Chemical Control, and Solarization

Impact of herbicides on Plant Diseases
Effects of Soil Application of Fungicides on Take-all in Winter Wheat
Use of Fungicides to Study Significance and Etiology of Root Rot of Subterranean Clover
     in Dryland Pastures of Victoria
Suppression of Soilborne Diseases of Ornamental Plants by Tree Bark Composts
Effects of Cropping Sequences on Saprophytic Survival and Carry-over of
     Gaeumannomyces graminis var. tritici

Susceptibility of Apple Trees to Phytophthora cactorum and Effect of Systemic Fungicides
Enhanced Suppression of Take-all Root Rot of Wheat with Chloride Fertilizers
Effect of Tillage on Heterodera avenae in Wheat
Effect of Rotation and Tillage on Take-all and Rhizoctonia Root Rot in Wheat
Activity of Fungicides in Soil Against Infection of Wheat Roots by Gaeumannomyces
     graminis var. tritici

Integrated Control of Root Rot of Soybean Caused by Phytophthora megasperma f.sp.

Cropping Practices and Root Diseases
Root Rot of Irrigated Subterranean Clover in Northern Victoria: Significance and Prospects

     for Control
Solar Disinfestation of Soils
Soil Solarization: Effects on Fusarium Wilt of Carnation and Verticillium Wilt of Eggplant
Evaluation of Soil Solarization for Control of Clubroot of Crucifers and White Rot of Onions

     in Southeastern Australia
Relative Efficiency of Polyethylene Mulching in Reducing Viability of Sclerotia of
     Sclerotium oryzae in Soil

Proceedings of the First International Workshop on Take-All of Cereals

Preface to the Take-all Workshop
Session 1: Culture and Taxonomy
Session 2: Inoculum
Session 3: Pathogenic Variation
Session 4: Growth Regulators, Pesticides, and Herbicides
Session 5: Disease Expression and Measurement
Session 6: Grower Observations and Questions
Session 7: Nutrition and Fertilizers
Session 8: Environmental Factors
Session 9: Host-Parasite Interactions
Session 10: Microbial Interactions
Session 11: Disease Management
Session 12: Suppressive Soils and Take-all Decline
Session 13: Bacterization and Biological Control


Publish Date: 1985
Format: 8.5" x 11" hardcover
ISBN: 978-0-89054-066-4
Pages: 358
Images: 94 images
Publication Weight: 3 lbs

Edited by C.A. Parker, A.D. Rovira, K.J. Moore, P.T.W. Wong, and J.F. Kollmorgen

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