Volume 71Table of Contents Volume 71, 1991 no. 1 (1-136) no. 2 (137-176) Incidence and severity of verticillium wilt of alfalfa in Prince Edward Island (1988-89) and New Brunswick (1988) R.A. Martin, P. Boswall and K. Lynch Pages 5-8 Response of cultivars and breeding lines to the disease complex of fusarium wilt and root rot of green peas in SW Ontario J.C. Tu Pages 9-12 Root lesion and root-knot nematodes associated with crops grown in rotation with carrots on Prince Edward Island J. Diamond, J. Kimpinski and C.E. Gallant Pages 13-16 Occurrence of lettuce rust in Onoway, Alberta in 1989 K.F. Chang, M. Mirza and S.F. Hwang Pages 17-20 Occurrence of verticillium wilt of alfalfa in southern Alberta, 1980-86 R.J. Howard, H.C. Huang, J.A. Traquair, E.R. Moskaluk, M.J. Kokko and L.M. Phillippe Pages 21-28 Effects of soil pH and nutrients on growth of apple seedling grown in apple replant disease soils of British Columbia T.S.C. Li and R.S. Utkhede Pages 29-32 Populations of propagules of Mucor spp. during immersion dumping of Anjou pears P.L. Sholberg and G.R. Owen Pages 33-36 Role of the insect Nysius niger, and flixweed, Desurainia sophia, in infection of Saskatchewan mustard crops with a yeast, Nematospora sinecauda L. Burgess and D.L. McKenzie Pages 37-42 Powdery mildew of babaco at Agassiz, B.C. J.G. Menzies and C. Kempler Pages 43-46 DISEASE HIGHLIGHTS 1990 APERCU DES MALADIES Diagnostic laboratories / Laboratoires diagnostiques Pages 51-60 Cereals /Céréales Pages 61-82 Forage legumes / Légumineuses fourraghères Pages 83-91 Oilseeds and special crops / Oléagineux et cultures spéciales Pages 92-111 Vegetables / Légumes Pages 112-116 Tree fruits and nuts / Arbres fruitiers et noix Pages 117-120 Small fruits / Petits fruits Pages 121-125 Turfgrass/ Gazon Pages 126-128 Forest trees / Arbres forestiers Pages 129-136 Obiturary / Notice Necrologique Page 137Distribution and severity of scald on winter barley in Ontario in 1988 and 1989 G. Xue and R. Hall Pages 139-142Reaction of additional barley cultivars to two aster yellows strains L.N.Chiykowski Pages 143-146A survey of carrot diseases on muck soils in the southwestern part of Quebec R. Arcelin and A.C. Kushalappa Pages 147-154Colletotrichum gloeosporioides causing anthracnose of Lavaterasp. K. Mortensen Pages 155-160Fusarium avenaceum, a pathogen of stored broccoli J. Mercier, J. Makhlouf and R.A. Martin Pages 161-162Yield of soybean cultivars differing in susceptibility to Phytophthora megasperma f. sp. glycinea on minimum tillage ridges T.R. Anderson Pages 163-164Field susceptibility of scab-resistant apple cultivars and selections to frogeye leaf spot J. Warner Pages 165-168Effects of seed infection by Ascochytaspp., fungicide seed treatment, and cultivar on yield parameters of field pea under field conditions S.F. Hwang, K. Lopetinsky and 1.R. Evans Pages 169-172Author Index to Volume 71 Pages 173-176
