American Phytopathological Society Board & Staff. VIEW ABSTRACT | VIEW ARTICLE
Obituary
John O. Gaskill, 1908-1981. E. G. Ruppel and R. J. Hecker. Page 457. VIEW ABSTRACT | VIEW ARTICLE
Letter to the Editor
Sorting of Infection-Type Data Sets Toward the Gene-for-Gene Model: A Reply. L. E. Browder, M. G. Eversmeyer. Pages 458-460. VIEW ABSTRACT | VIEW ARTICLE
Genetics
Genetics of Cowpea Reactions to Two Strains of Cowpea Mosaic Virus from Tanzania. P. N. Patel. Pages 460-466. VIEW ABSTRACT | VIEW ARTICLE
Physiology and Biochemistry
Evidence That 13-Hydroxycapsidiol Is Not an Intermediate in Capsidiol Degradation in Peppers. E. W. B. Ward, S. D. Barrie. Pages 466-468. VIEW ABSTRACT | VIEW ARTICLE
Etiology
Pythium Species Pathogenic to Onion Seedlings Grown on Organic Soils in New York. W. L. Bruckart, J. W. Lorbeer. Pages 469-475. VIEW ABSTRACT | VIEW ARTICLE
Resistance
Induction of Fungal Resistance to Metalaxyl by Ultraviolet Irradiation. G. C. A. Bruin, L. V. Edgington. Pages 476-480. VIEW ABSTRACT | VIEW ARTICLE
Ecology and Epidemiology
Effects of Temperature, Light, and Relative Humidity on Powdery Mildew of Begonia. J. A. Quinn, C. C. Powell, Jr.. Pages 480-484. VIEW ABSTRACT | VIEW ARTICLE
Disease Control and Pest Management
Biological Control of Sclerotinia Lettuce Drop in the Field by Sporidesmium sclerotivorum. P. B. Adams, W. A. Ayers. Pages 485-488. VIEW ABSTRACT | VIEW ARTICLE
Cytology and Histology
Role of Bacterial Immobilization in Race-Specific Resistance of Soybean to Pseudomonas syringae pv. glycinea. W. F. Fett, S. B. Jones. Pages 488-492. VIEW ABSTRACT | VIEW ARTICLE
Disease Detection and Losses
Quantifying Cephalosporium Stripe Disease Severity on Winter Wheat. W. W. Bockus, T. Sim IV. Pages 493-495. VIEW ABSTRACT | VIEW ARTICLE
Disease Control and Pest Management
Effect of Gliocladium virens on Pythium ultimum, Rhizoctonia solani, and Damping-Off of Cotton Seedlings. C. R. Howell. Pages 496-498. VIEW ABSTRACT | VIEW ARTICLE
Physiology and Biochemistry
Relation of Appressorium Pigmentation and Penetration of Nitrocellulose Membranes by Colletotrichum lagenarium. Y. Kubo, K. Suzuki, I. Furusawa, N. Ishida, and M. Yamamoto. Pages 498-501. VIEW ABSTRACT | VIEW ARTICLE
Special Topics
Cultural Characteristics and Host Range of Codinaea fertilis. C. Lee Campbell. Pages 501-504. VIEW ABSTRACT | VIEW ARTICLE
Resistance
Wheat Peduncle Structure in Relation to Slow Rusting by Puccinia graminis f. sp. tritici. M. L. A. Palmer, Roy D. Wilcoxson. Pages 505-506. VIEW ABSTRACT | VIEW ARTICLE
Ecology and Epidemiology
Effect of Soil Matric Potential on the Formation and Indirect Germination of Sporangia of Phytophthora parasitica, P. capsici, and P. cryptogea. E. A. Bernhardt, R. G. Grogan. Pages 507-511. VIEW ABSTRACT | VIEW ARTICLE
Ecology and Epidemiology
Inoculum Potential of Cylindrocladium crotalariae: Infection Rates and Microsclerotial Density-Root Infection Relationships on Peanut. G. S. Tomimatsu, G. J. Griffin. Pages 511-517. VIEW ABSTRACT | VIEW ARTICLE
Ecology and Epidemiology
Interaction Between Fusarium oxysporum f. sp. medicaginis and Corynebacterium insidiosum in Alfalfa. L. E. B. Johnson, F. I. Frosheiser, and R. D. Wilcoxson. Pages 517-522. VIEW ABSTRACT | VIEW ARTICLE
Ecology and Epidemiology
Survival of Colletotrichum graminicola in Soil. M. A. Vizvary, H. L. Warren. Pages 522-525. VIEW ABSTRACT | VIEW ARTICLE
Genetics
The Heritability of Three Parasitic Fitness Attributes of Helminthosporium maydis race T. J. P. Hill, R. R. Nelson. Pages 525-528. VIEW ABSTRACT | VIEW ARTICLE
Etiology
Properties of a Tobacco Necrosis Virus Isolate from Pogostemum patchuli in Brazil. M. I. C. S. Gama, E. W. Kitajima, and M. T. Lin. Pages 529-532. VIEW ABSTRACT | VIEW ARTICLE
Etiology
Phytophthora and Pythium species Associated with Crown Rot in New York Apple Orchards. S. N. Jeffers, H. S. Aldwinckle, T. J. Burr, and P. A. Arneson. Pages 533-538. VIEW ABSTRACT | VIEW ARTICLE
Disease Detection and Losses
Evaluation of Oat Crown Rust Disease Parameters and Yield in Moderately Resistant Cultivars. L. L. Singleton, M. B. Moore, R. D. Wilcoxson and M. F. Kernkamp. Pages 538-540. VIEW ABSTRACT | VIEW ARTICLE
Ecology and Epidemiology
Pea Cultivar Effect on Seed Treatment With Penicillium oxalicum in the Field. Carol E. Windels, Thor Kommedahl. Pages 541-543. VIEW ABSTRACT | VIEW ARTICLE
Ecology and Epidemiology
Effect of Soil Matric Potential on Phytophthora Root Rot of Alfalfa. Ta -Li Kuan, D. C. Erwin. Pages 543-548. VIEW ABSTRACT | VIEW ARTICLE
Ecology and Epidemiology
Epidemiology of Verticillium Wilt of Cotton: A Relationship Between Inoculum Density and Disease Progression. G. S. Pullman, J. E. DeVay. Pages 549-554. VIEW ABSTRACT | VIEW ARTICLE
Ecology and Epidemiology
Epidemiology of Verticillium Wilt of Cotton: Effects of Disease Development on Plant Phenology and Lint Yield. G. S. Pullman, J. E. DeVay. Pages 554-559. VIEW ABSTRACT | VIEW ARTICLE
Ecology and Epidemiology
Cold Inactivation of Phytophthora cinnamomi. D. M. Benson. Pages 560-563. VIEW ABSTRACT | VIEW ARTICLE
Disease Detection and Losses
Evaluation of a Selective Medium for Detecting Pseudomonas syringae pv. papulans and P. syringae pv. syringae in Apple Orchards. T. J. Burr, B. Katz. Pages 564-567. VIEW ABSTRACT | VIEW ARTICLE
Physiology and Biochemistry
Partial Characterization of Phytotoxic Polysaccharides Produced in vitro by Colletotrichum trifolii. Kurt A. Frantzen, Lowell B. Johnson, and Donald L. Stuteville. Pages 568-573. VIEW ABSTRACT | VIEW ARTICLE
Ecology and Epidemiology
Effects of Leaf Age and Inoculum Concentration on Infection of Sour Cherry by Coccomyces hiemalis. S. P. Eisensmith, T. M. Sjulin, A. L. Jones, and C. E. Cress. Pages 574-577. VIEW ABSTRACT | VIEW ARTICLE
Etiology
Quantification of Plant Pathogenic Spiroplasmas from Infected Plants. J. W. Kloepper, D. G. Garrott, and G. N. Oldfield. Pages 577-581. VIEW ABSTRACT | VIEW ARTICLE
