Performance of selected grape cultivars at the Southern branch / G. A. Cahoon and J. F. Gallander -- Grape cultivars and selections under investigation at the Southern branch, Ohio Agricultural Research and Development Center, Ripley, July 1, 1969 -- The potassium fertilization of grapes / G. A. Cahoon -- Costs and returns for Ohio grapes, 1969 / H. L. Steele, E. T. Shaudys, E. S. Banta and G. A. Cahoon -- Protecting vineyards from frost / E. S. Banta -- Insects injurious to grapes in Ohio / H. Y. Forsythe, Jr. and G. W. Still -- Important diseases of Ohio grapes / B. F. Janson and H. F. Winter -- Vineyard weed control / R. G. Hill, Jr. and E. K. Alba