Volume 49Table of Contents Volume 49 (1), 1969 W. G. KEMP Detection of tomato ringspot virus in Pelargonium in Ontario Pages 1-4B. N. DHANVANTARI Occurrence of bacterial canker of sweet cherry and plum in Ontario Pages 5-7J. DREW SMITH Field resistance to Pyrenophora bromi in Bromus inermis and Bromus spp Pages 8-13L. C. CALLBECK Screening of potato fungicides 1968 Pages 14-15L. N. CHIYKOWSKI A leafhopper transmitted clover disease in the Ottawa area Pages 16-19ROBERT SEWELL Some records of plant parasitic nematodes encountered in Canada in 1968 Pages 20-21C. O. GOURLEY and K. A. HARRISON Observations on cranberry fruit rots in Nova Scotia, 1945-55 Pages 22-26J. A. HOES Sunflower diseases in Manitoba in 1968 Page 27V.R. WALLEN Field bean disease survey in Ontario -1968 Pages 27-28J. A. HOES and H.F. HARP Nematode leaf blight of chrysanthemum Pages 28-29D. B. O. SAVILE Chives rust at Ottawa, Ontario Pages 29 P. M. AUSTIN BOURKE Potato,late blight in Canada in 1844-45 Pages 29-31Volume 49 (2), 1969R. G. ROSS and C. O. GOURLEY Phytophthora syringae fruit rot of apples in Nova Scotia Pages 33-35B. N. DHANVANTARI Bacterial blister spot of apple in Ontario Pages 36-37L. W. CARLSON and J. BELCHER Seed treatment fungicides for control of conifer damping-off: Laboratory and greenhouse tests, 1967-68 Pages 38-42J. DREW SMITH and EDWARD A. MAGINNES Scale rot tests of hardy hybrid lilies Pages 43-45C. L. LOCKHART, A. A. MacNAB, and BART BOLWYN A systemic fungicide for control of verticillium wilt in strawberries Pages 46-48H. A. H. WALLACE Cooperative seed treatment trials – 1969 Pages 49-53Th. H. A. OLTHOF, J. L. TOWNSHEND, J. W. POTTER, and A. CORNELISSE Plant- parasitic nematode genera associated with crops in Ontario in 1968 Pages 54-55A. A. REYES The seasonal occurrence of fungal and bacterial diseases of crucifers in Ontario in 1967 and 1968 Pages 56-57L. F. GATES Incidence and effects of wheat spindle streak mosaic in Essex and Kent counties, Ontario, 1967-68 Pages 58-59R. V. CLARK and V. R. WALLEN Seed infection of barley by Cochliobolus sativus and its influence on yield Pages 60-64B. BERKENKAMP Mycodiplosis (Diptera, Cecidomyiidae) feeding on clover rust (Uromyces trifolii) spores Page 65BOOK REVIEW PLANT PATHOLOGIST’S POCKETBOOK Page 65Â Volume 49 (3), 1969R. G. ROSS and K. H. SANFORD Arsenical injury to apple foliage from spray mixtures containing lead arsenate Pages 67-69S.K. GAYED Effect of benomyl on black root rot of tobacco caused by Thielaviopsis basicola Pages 70-74L. C. CALLBECK Screening of potato fungicides in 1969 Pages 75-77G.J. GREEN Air-borne rust inoculum over Western Canada in 1969 Pages 78-79D. J. SAMBORSKI Leaf rust of wheat in Canada in 1969 Pages 80-82G. J. Green Stem rust of wheat, barley, and rye in Canada in 1969 Pages 83-87J. W. MARTENS Stem rust of oats in Canada in 1969 Pages 88-90G. FLEISCHMANN Crown rust of oats in Canada in 1969 Pages 91-94L. PIENING, R. EDWARDS, and D. WALKER Effect of some cultural practices on root rot of barley in central Alberta Pages 95-97W.C. JAMES, C.C. GILL, and B.E. HALSTEAD Prevalence of barley yellow dwarf virus in winter wheat in southwestern Ontario, 1969 Pages 98-104Â Volume 49 (4), 1969H.S. PEPIN and H.N.W. TOMS Economic loss from mummy berry of highbush blueberry in coastal British Columbia Pages 105-107J.T. SLYKHUIS and Z. POLAK Verification of wheat spindle streak mosaic virus as a cause of mosaic of wheat in Ontario Pages 108-111D.J.S. BARR and J.T. SLYKHUIS Zoosporic fungi associated with wheat spindle streak mosaic in Ontario Pages 112-113W.C. MCDONALD, J.W. MARTENS, G.J. GREEN, D.J. SAMBORSKI, G. FLEISCHMANN, and C.C. GILL Losses from cereal diseases and value of disease resistance in Manitoba i n 1969 Pages 114-121H. WINSTON JOHSTON Diseases of cereals in the Maritime Provinces in 1969 Pages 122-125HOWARD HARDING Diseases of alfalfa and other forage lequmes in Saskatchewan in 1968 and 1969 Pages 126-127L.F. GATES and C.G. MORTIMORE Three diseases of corn (Zea mays) new to Ontario: Crazy top, a Phyllosticta leaf spot, and eyespot Pages 128-131P.W. JOHNSON and L.W.D. BOEKHOVEN Nematodes associated with tomato and cucumber greenhouse soils in Essex County, Ontario Pages 132-134H. R. MacCARTHY A newly recorder virus disease of sugar beet i n British Columbia Pages 135-138JACK A. FREEMAN and H.S. PEPIN Effect of postharvest infection of powdery mildew on yield of the strawberry cultivar Northwest Page 139H. WINSTON JOHNSTON and J . A . CUTCLIFFE Root rot of peas in Prince Edward Island in 1969 Page 140J. DREW SMITH Char spot on wheatgrasses Pages 140-141J. DREW SMITH Snow mold on lawns in Saskatoon Page 141V. R. WALLEN Incidence of common and fuscous blights of field beans in southwestern Ontario – 1969 Page 142AUTHOR INDEX TO VOLUME 49 Pages 143-145ERRATA Page 147
