Forest Insect and Disease Survey; Ontario, 1965 - NFIS

F 5
TABLE 6
Other Noteworthy Diseases in the
Midwestern Region in 1965
Organism
Host(s)
Remarksks
Aureobasidium pullulans (deBary) ScP
Arnaud
Bifusella crepidiformis Darker bS
Chrysomyxa pirolata Wint.
cladosporium sp. wB
Coccomyces hiemalis Higgins
Cronartium comandrae Peck
Cryptomyces pteridis (Rob.) ex
(Fr.) Rehm.
Cryptospora betulae Tul.
Cytospora chrysosperma (Pers.)
Fr.
Diaporthe tessella (Pers.) Rehm.
Diatrypella betulina (Pk.) Wehm. wB
Fomes igniarius (L. ex Fr.) Gill. tA
bS
ecch
jP
Bracken
wB
W,tA,pCh
Glocosporium sp. wB,W1bAs
Kabatia lonicerae (Harkn.) Hoehn.
lonic era
Mamiania coryli (Fr.) ces. & de Not. Hazel
Melampsora medusae Thum.
tL
Heavy infection on two trees,
MacGregor Tp., P. Arthur
District.
Severe browning of old foliage
on a small clump of shaded trees
in Lindsley Tp., Geraldton Distr.
Very low incidence on cones in
Maccomber Tp.
Light infection on several large
trees.
Generally light infection along
Armstrong rd.; high severity on
scattered trees 1 mile E. of
English River, P. Arthur District.
Very light infection of this rust
persisted at the Thunder Bay
Nursery..
Affecting a few plants in Pardee
Tp., P. Arthur District.
collected on dead branches along
Armstrong road.
Common on dead willow branches in
hail damaged area in Errington Tp.
and on numerous small aspen at
LeMay road, Geraldton District.
Found on open grown willow at one
location in Fallis Tp., P. Arthur
District.
High incidence of branch mortality
on scattered shrubs in Pic Tp.
Found on one dead tree top.
Stem cankers common on large trees
through Blacksand Park, Geraldton
Distr.
Light infections in Marks and
Blake tps., P. Arthur Distr. and
in Legault Tp., Geraldton Distr.
High incidence at Black Sturgeon
Lake, P. Arthur District.
Common in Black Sturgeon L. area;
one small collection from Orient
Bay, Geraldton Distr.
Very light infection on several
hosts in Nipigon Tp., P. Arthur
Distr., and at Polly Lake,
Geraldton Distr.