Biology Reference
In-Depth Information
Trichothecium roseum
Fruit, Storage Rot
on
tomato, fig, celery, carrot, occasional on quince
and pear; a pink mold.
Pink Mold Rot
on plum,
nectarine and peach.
Leptographium procera (formerly
Verticicladiella procera
.
Root Rot
and
Decline
of eastern white pine, sand pine and red pine.
Leptographium wagenerii (formerly
Verticicladiell awagenerii
).
Root Rot
on fir and
pine.
Verticicladiella abietina (see
Ustulina
Leptographium
abietinum
)
Root Rot
on white pine.
Verticicladiella
▶
Ascomycetes, Xylariales
penicillata
(see
Leptographium penicillata
).
Root Rot
on
white pine.
Leptographium
▶
Stroma globoid, cupulate to pulvinate; carbona-
ceous, black, somewhat hollow; spores dark, one-
celled.
Ustulina deusta
White Heart Rot
, a brittle white
rot with prominent black zones in butts of living
hardwoods; prevalent on sugar maple sprouts.
Black crusts appear on stumps, logs, and on flat
cankered areas of American beech.
procera (see
Verticicladiella procera
).
Root Rot
and
Decline
of eastern white pine, sand pine and red
pine.
Leptographium
▶
wagenerii (see
Verticicladiella wagenerii
).
Root Rot
on fir
and pine.
▶
Valsa
Xylaria
Ascomycetes, Xylariales
Cankers and Diebacks
.
Valsa ambiens subsp. leucostomoides Causing
decay around holes of tapped sugar maples.
▶
Stroma is upright, simple or branched; perithecia,
immersed laterally, are produced after conidia;
spores dark, one-celled.
Xylaria hypoxylon
Root Rot
of hawthorn and
gooseberry.
Xylaria mali
Black Root Rot
of apple, also
honey locust. Wood is soft, spongy, dirty white,
with narrow conspicuous black zones forming
fantastic patterns. Roots are covered with thin
compact white mycelium, which changes to
black incrustations. Fruiting bodies are dark
brown to black, club-shaped, 1 to several inches
high, united at the base, extending upward like
a fan. The disease is not common, and where it
does occur, only a few trees are killed.
Xylaria
Leptographium (Verticicladiella)
Deuteromycetes, Hyphomyceres
Conidiophores upright, tall, brown, branched
only near apex, penicillate; conidia
(sympodulospores) hyaline, one-celled, ovoid to
clavate, often curved, apical on sympodially
formed new growing points, in slime droplets.
Leptographium abietinum (formerly
Verticicladiella abietina
).
Root Rot
on white
pine.
Leptographium penicillata (formerly
Verticicladiella penicillata
.
Root Rot
on white
pine.
polymorpha On
decaying wood,
identified by cylindrical
thumblike
fruiting
bodies.
