Volume 70

Table of Contents
Volume 70 (1), 1990

Possibilites de lutte biologique contre les maladies du feuillage et des tiges de la luzerne
Y. Douville, C. Richard et S. Pouleur
Pages 5-10

Populations of propagules of Penicillium spp. during immersion dumping of apples
P.L. Sholberg and G.R. Owen
Pages 11-14

The occurrence of powdery mildew on rutabagas in southern Ontario
V.I. Shattuck and R. Parry
Pages 15-16

First report of Sclerotinia sclerotiorum on Lathyrus sativus
R.C. Zimmer and Clayton Campbell
Pages 17-18

A disease assessment key for Alternaria blackspot in rapeseed and mustard
K.L. Conn, J.P. Tewari and R.P. Awasthi
Pages 19-22

Distribution of virus vector nematodes associated with peach and other fruit crops in Essex County, Ontario
L. Van Driel, J.W. Potter and B.A. Ebsary
Pages 23-26

DISEASE HIGHLIGHTS 1989 APERCU DES MALADIES

Diagnostic laboratories / Laboratoires diagnostiques
Pages 31-35

Cereals /Céréales
Pages 36-57

Forage legumes / Légumineuses fourraghères
Pages 58-61

Oilseeds and special crops / Oléagineux et cultures spéciales
Pages 62-86

Vegetables / Légumes
Pages 87-88

Tree fruits and nuts / Arbres fruitiers et noix
Pages 89-95

Small fruits / Petits fruits
Pages 96-101

Ornamentals / Plantes ornementales
Pages 102-103

Turf / Gazon
Pages 104-105

Forest trees / Arbres forestiers
Pages 106-110

Volume 70 (2), 1990

Erratum
Page 111

Occurrence of blueberry leaf mottle, blueberry shoestring, tomato ringspot and tobacco ringspot viruses in eleven halfhigh blueberry clones grown in New Brunswick, Canada
A.S. Jaswal
Pages 113-118

First report of eyespot [ Pseudocercosporella herpotrichoides ] in wheat in the Prairie Provinces
S.W. Slopek, B. Fletcher and T.J. Labun
Pages 119-122

Ascochyta blight in lentil crops and seed samples in Saskatchewan in 1988
S. Bedi and R.A.A. Morrall
Pages 123-126

Occurrence of Peronospora farompsa f. sp. chenopodii on quinoa in Canada
J.P. Tewari and S.M. Boyetcho
Pages 127-128

Verticillium wilt of irrigated alfalfa in Saskatchewan, 1987-89
B.D. Gossen and G.D. Jesperson
Pages 129-132

Diseases of Rubus parviflorus in British Columbia
R.E. Wall and S.F. Shamoun
Pages 133-136

Author Index to Volume 70
Pages 137-140