Volume 58Table of Contents Volume 58 (1), 1978 Influence of Paratylenchus projectus on alfalfa sickness in Alberta E.J. Hawn and G.C. Kozub Pages 1-4A yield loss conversion factor for peas moderately affected by fusarium root rot P.K. Basu Pages 5-8Incidence and severity of net blotch of barley and distribution of Pyrenophora teres biotypes in the Canadian prairies in 1976 A. Tekauz Pages 9-11Co-operative seed treatment trials -1977 J. T. Mills, G.J. Pelletier, J.G.N. Davidson, L.J. Piening, and J. Nielsen Pages 12-14Damping-off in tobacco seedbeds caused by Rhizoctonia solani and Pythium ultimum S.K. Gayed, D.J.S. Barr, L.K. Weresub Pages 15-19 Volume 58 (2), 1978Occurrence of a highly virulent strain of blackleg (Leptosphaeria maculans) on rape in Saskatchewan (1975-77) G.A. Petrie Pages 21-25Seed potato improvement in Canada James Munro Pages 26-28Barley stripe mosaic in Saskatchewan in 1977 Arthur W.Chiko Pages 29-30Natural infection of two new hosts by hemlock dwarf mistletoe in British Columbia R.S. Hunt and R.B. Smith Pages 31-32Distribution and severity of root and leaf diseases and cereal leaf beetle damage of barley in western Ontario R. V. Clark Pages 33-38 Volume 58 (3), 1978Crown rust of oats in Canada in 1977 O.E. Harder Pages 39-43Stem rust of wheat, barley and rye in Canada in 1977 G.J. Green Pages 44-48Air borne rust inoculum over western Canada in 1977 G. J. Green Pages 49-50Stem rust of oats in Canada in 1977 J. W. Martens Pages 51-52Leaf rust of wheat in Canada in 1977 D.J. Samborski Pages 53-54Announcement Page 55A search for leaf roll virus that does not cause diagnostic symptoms in potato foliage R.H.E. Bradley Pages 56-60The effect of weeds on the value of rotation as a practical control for Verticillium wilt of potato L. V. Busch, Elizabeth A. Smith, and Fritz Njoh-Elango Pages 61-64Peach X-disease in southwestern Ontario B.N. Dhanvantari and F. Kappel Pages 65-68 Volume 58 (4), 1978Pseudocercosporella capsellae, the cause of white leaf spot and grey stem of Cruciferae in Western Canada G.A. Petrie and T.C. Vanterpool Pages 69-72Control of root and crown rot of African Violet and of Gloxinia caused by Phytophthora nicotianae var. nicotianae L.V. Busch and Elizabeth A. Smith Pages 73-74The effect of chlorothalonil on alternaria leaf spot of crucifers under laboratory conditions Andres A. Reyes and Austin E. Maitland Pages 75-76Mycosphaerella tassiana on Cruciferae in Western Canada G.A. Petrie and T.C. Vanterpool Pages 77-79Ranges of distribution of species of Pratylenchus in Northeastern North America J.L. Townshend, J.W. Potter, and C.B. Willis Pages 80-82Fan-mould of carnation caused by Phialophora cinerescens A. T. Bolton Pages 83-86Occurrence of rubbery brown rot of stored carrots in Alberta O. Stelfox and A.W. Henry Pages 87-91Barley smuts in Manitoba and eastern Saskatchewan, 1975-77 P.L. Thomas Pages 92-94Cereal diseases in the Maritime Provinces, 1976 K.S. Clough and H.W. Johnston Pages 95-96Cereal diseases in the Maritime Provinces, 1977 K.S. Clough and H.W. Johnston Pages 97-98Prevalence of six fungal pathogens associated with seeds of rape and turnip rape in Canada in 1976 G.A. Petrie Pages 99-103Fungi associated with pole rot of cigar tobacco in Quebec S.K. Gayed Pages 104-106Verticillium wilt in Canadian redbud H.J. Thorpe and W.R. Jarvis Page 107Author index to volume 58 Pages 108