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Phytopathology January, 1980
Volume 70, Number 1


American Phytopathological Society Board & Staff.  VIEW ABSTRACT  |   VIEW ARTICLE

Acknowledgment of Reviewers. Pages 1-3. VIEW ABSTRACT  |   VIEW ARTICLE

Obituary

Ralph Anthony Ludwig, 1915-1977. James G. Horsfall. Page 7.VIEW ABSTRACT  |   VIEW ARTICLE

Disease Control and Pest Management

Selection for Tolerance in Organisms Exposed to Sprays of Biocide Mixtures: A Theoretical Model. P. F. Kable, H. Jeffery. Pages 8-12. VIEW ABSTRACT  |   VIEW ARTICLE

Ecology and Epidemiology

Survival of Macrophomina phaseolina in Soil and in Residue of Soybean. G. E. Short, T. D. Wyllie, and P. R. Bristow. Pages 13-17. VIEW ABSTRACT  |   VIEW ARTICLE

Resistance

Virulence and Aggressiveness of Phakopsora pachyrhizi Isolates Causing Soybean Rust. K. R. Bromfield, J. S. Melching, and C. H. Kingsolver. Pages 17-21. VIEW ABSTRACT  |   VIEW ARTICLE

Etiology

Pathogenicity of Some Select Soilborne Dematiaceous Hyphomycetes on Germinating Seed of Festuca rubra. James P. Madsen, Clinton F. Hodges. Pages 21-25. VIEW ABSTRACT  |   VIEW ARTICLE

Disease Control and Pest Management

Persistence of Benomyl-Tolerant Strains of Cercospora beticola in the Absence of Benomyl. E. G. Ruppel, A. D. Jenkins, and L. M. Burtch. Pages 25-26. VIEW ABSTRACT  |   VIEW ARTICLE

Resistance

Interactions of Pythium ultimum with Germinating Resistant or Susceptible Pea Seeds. T. E. Stasz, G. E. Harman. Pages 27-31. VIEW ABSTRACT  |   VIEW ARTICLE

Etiology

Symptomatology and Formation of Microsclerotia in Weeds Inoculated with Verticillium dahliae from Cotton. William M. Johnson, E. K. Johnson, and L. A. Brinkerhoff. Pages 31-35. VIEW ABSTRACT  |   VIEW ARTICLE

Physiology and Biochemistry

Effect on Host Hypersensitivity of Suppressors Released During the Germination of Phytophthora infestans Cystospores. N. Doke, N. A. Garas, and J. Kuć. Pages 35-39. VIEW ABSTRACT  |   VIEW ARTICLE

Resistance

Initiation of Induced Nonhost Resistance of Oat Leaves to Rust Infection. T. Tani, Y. Yamashita, and H. Yamamoto. Pages 39-42. VIEW ABSTRACT  |   VIEW ARTICLE

Physiology and Biochemistry

N-[2-(2-Oxo-1-Imidazolidinyl) Ethyl]-N'-Phenylurea as a Protectant Against Ozone Injury to Laboratory Fumigated Pinto Bean Plants. T. Craig Weidensaul. Pages 42-45. VIEW ABSTRACT  |   VIEW ARTICLE

Disease Control and Pest Management

Effect of Benomyl on Phomopsis juniperovora Infection of Juniperus virginiana. J. D. Otta, D. J. Fiedler, and V. H. Lengkeek. Pages 46-50. VIEW ABSTRACT  |   VIEW ARTICLE

Ecology and Epidemiology

Comparison of Tuberborne and Soilborne Inoculum in the Rhizoctonia Disease of Potato. J. A. Frank, S. S. Leach. Pages 51-53. VIEW ABSTRACT  |   VIEW ARTICLE

Physiology and Biochemistry

Factors Affecting Behavior and Developmental Synchrony of Germinating Oospores of Pythium aphanidermatum. D. M. Ruben, Z. R. Frank, and I. Chet. Pages 54-59. VIEW ABSTRACT  |   VIEW ARTICLE

Ecology and Epidemiology

The Law of the Minimum and the Relation Between Pathogen, Weather, and Disease. Paul E. Waggoner, W. A. Norvell, and D. J. Royle. Pages 59-64. VIEW ABSTRACT  |   VIEW ARTICLE

Ecology and Epidemiology

Inoculum Density of Sclerotium cepivorum and the Incidence of White Rot of Onion and Garlic. F. J. Crowe, D. H. Hall, A. S. Greathead, and K. G. Baghott. Pages 64-69. VIEW ABSTRACT  |   VIEW ARTICLE

Ecology and Epidemiology

Vertical Distribution of Sclerotia of Sclerotium cepivorum and Host Root Systems Relative to White Rot of Onion and Garlic. F. J. Crowe, D. H. Hall. Pages 70-73. VIEW ABSTRACT  |   VIEW ARTICLE

Ecology and Epidemiology

Soil Temperature and Moisture Effects on Sclerotium Germination and Infection of Onion Seedlings by Sclerotium cepivorum. F. J. Crowe, D. H. Hall. Pages 74-78. VIEW ABSTRACT  |   VIEW ARTICLE