Canadian Plant Disease Survey Archive

Volume 49

Table of Contents
Volume 49 (1), 1969

 

W. G. KEMP
Detection of tomato ringspot virus in Pelargonium in Ontario

Pages 1-4
B. N. DHANVANTARI
Occurrence of bacterial canker of sweet cherry and plum in Ontario

Pages 5-7
J. DREW SMITH
Field resistance to Pyrenophora bromi in Bromus inermis and Bromus spp

Pages 8-13
L. C. CALLBECK
Screening of potato fungicides 1968

Pages 14-15
L. N. CHIYKOWSKI
A leafhopper transmitted clover disease in the Ottawa area

Pages 16-19
ROBERT SEWELL
Some records of plant parasitic nematodes encountered in Canada in 1968

Pages 20-21
C. O. GOURLEY and K. A. HARRISON
Observations on cranberry fruit rots in Nova Scotia, 1945-55

Pages 22-26
J. A. HOES
Sunflower diseases in Manitoba in 1968

Page 27
V.R. WALLEN
Field bean disease survey in Ontario -1968

Pages 27-28
J. A. HOES and H.F. HARP
Nematode leaf blight of chrysanthemum

Pages 28-29
D. B. O. SAVILE
Chives rust at Ottawa, Ontario

Pages 29
P. M. AUSTIN BOURKE
Potato,late blight in Canada in 1844-45

Pages 29-31
Volume 49 (2), 1969
R. G. ROSS and C. O. GOURLEY
Phytophthora syringae fruit rot of apples in Nova Scotia

Pages 33-35
B. N. DHANVANTARI
Bacterial blister spot of apple in Ontario

Pages 36-37
L. W. CARLSON and J. BELCHER
Seed treatment fungicides for control of conifer damping-off: Laboratory and greenhouse tests, 1967-68

Pages 38-42
J. DREW SMITH and EDWARD A. MAGINNES
Scale rot tests of hardy hybrid lilies

Pages 43-45
C. L. LOCKHART, A. A. MacNAB, and BART BOLWYN
A systemic fungicide for control of verticillium wilt in strawberries

Pages 46-48
H. A. H. WALLACE
Cooperative seed treatment trials – 1969

Pages 49-53
Th. H. A. OLTHOF, J. L. TOWNSHEND, J. W. POTTER, and A. CORNELISSE
Plant- parasitic nematode genera associated with crops in Ontario in 1968

Pages 54-55
A. A. REYES
The seasonal occurrence of fungal and bacterial diseases of crucifers in Ontario in 1967 and 1968

Pages 56-57
L. F. GATES
Incidence and effects of wheat spindle streak mosaic in Essex and Kent counties, Ontario, 1967-68

Pages 58-59
R. V. CLARK and V. R. WALLEN
Seed infection of barley by Cochliobolus sativus and its influence on yield

Pages 60-64
B. BERKENKAMP
Mycodiplosis (Diptera, Cecidomyiidae) feeding on clover rust (Uromyces trifolii) spores

Page 65
BOOK REVIEW
PLANT PATHOLOGIST’S POCKETBOOK

Page 65
 
Volume 49 (3), 1969
R. G. ROSS and K. H. SANFORD
Arsenical injury to apple foliage from spray mixtures containing lead arsenate

Pages 67-69
S.K. GAYED
Effect of benomyl on black root rot of tobacco caused by Thielaviopsis basicola

Pages 70-74
L. C. CALLBECK
Screening of potato fungicides in 1969

Pages 75-77
G.J. GREEN
Air-borne rust inoculum over Western Canada in 1969

Pages 78-79
D. J. SAMBORSKI
Leaf rust of wheat in Canada in 1969

Pages 80-82
G. J. Green
Stem rust of wheat, barley, and rye in Canada in 1969

Pages 83-87
J. W. MARTENS
Stem rust of oats in Canadain1969

Pages 88-90
G. FLEISCHMANN
Crown rust of oats in Canada in 1969

Pages 91-94
L. PIENING, R. EDWARDS, and D. WALKER
Effect of some cultural practices on root rot of barley in central Alberta

Pages 95-97
W.C. JAMES, C.C. GILL, and B.E. HALSTEAD
Prevalence of barley yellow dwarf virus in winter wheat in southwestern Ontario, 1969

Pages 98-104
 
Volume 49 (4), 1969
H.S. PEPIN and H.N.W. TOMS
Economic loss from mummy berry of highbush blueberry in coastal British Columbia

Pages 105-107
J.T. SLYKHUIS and Z. POLAK
Verification of wheat spindle streak mosaic virus as a cause of mosaic of wheat in Ontario

Pages 108-111
D.J.S. BARR and J.T. SLYKHUIS
Zoosporic fungi associated with wheat spindle streak mosaic in Ontario

Pages 112-113
W.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 114-121
H. WINSTON JOHSTON
Diseases of cereals in the Maritime Provinces in 1969

Pages 122-125
HOWARD HARDING
Diseases of alfalfa and other forage lequmes in Saskatchewan in 1968 and 1969

Pages 126-127
L.F. GATES and C.G. MORTIMORE
Three diseases of corn (Zea mays) new to Ontario: Crazy top, a Phyllosticta leaf spot, and eyespot

Pages 128-131
P.W. JOHNSON and L.W.D. BOEKHOVEN
Nematodes associated with tomato and cucumber greenhouse soils in Essex County, Ontario

Pages 132-134
H. R. MacCARTHY
A newly recorder virus disease of sugar beet i n British Columbia

Pages 135-138
JACK A. FREEMAN and H.S. PEPIN
Effect of postharvest infection of powdery mildew on yield of the strawberry cultivar Northwest

Page 139
H. WINSTON JOHNSTON and J . A . CUTCLIFFE
Root rot of peas in Prince Edward Island in 1969

Page 140
J. DREW SMITH
Char spot on wheatgrasses

Pages 140-141
J. DREW SMITH
Snow mold on lawns in Saskatoon

Page 141
V. R. WALLEN
Incidence of common and fuscous blights of field beans in southwestern Ontario – 1969

Page 142
AUTHOR INDEX TO VOLUME 49
Pages 143-145
ERRATA
Page 147