Biology Reference
In-Depth Information
Furcaspora
Glomerella
Deuteromycetes, Coelomycetes
Anthracnose
.
Glomerella cingulata
Cyclamen Leaf
and
Bud
Blight Leaf
and
Shoot Blight
of poplar.
▶
Starlike botryoblastospores; acervuli become
erumpent at maturity and grade into sporodochia
and pycnidia.
Furcaspora pinicola
Needle Cast
of pine.
Gnomonia
Fusarium
Rots
.
Fusarium graminearum
Head Blight
of wild
rice.
Fusarium moniliforme var. subgluti-
nans
Blight
of slash pine and loblolly pine
seedlings.
Fusarium solani
Stem and Leaf Blight
on
Spanish moss.
Fusarium subglutinans
Foliar Blight
and
Collar
Rot
on Chinese evergreen.
Seedling Blight
on
pine.
Fusarium tabacinum
Stem Blight
of squash
and pumpkin.
▶
Hadrotrichum
Deuteromycetes, Hyphomycetes
Sporodochia cushion-shaped, dark; conidio-
phores dark, simple, forming a palisade and aris-
ing from a stroma-like layer; conidia dark, nearly
spherical, one-celled, borne singly; parasitic on
leaves.
Hadrotrichum globiferum
Leaf Blight
of
lupine.
Helminthosporium
Gibberella
Deuteromycetes, Hyphomycetes
Ascomycetes, Hypocreales,
Nectriaceae
Mycelium light to dark; conidiophores short or
long; septate, simple or branched, often protrud-
ing from stomata of host; more or less irregular or
bent, bearing conidia successively on new grow-
ing tips; conidia dark typically with more than
three cells, cylindrical or ellipsoid, sometimes
slightly curved or bent, ends rounded. Parasitic,
often causing leaf spots or blights of cereals and
grasses.
Helminthosporium catenarium (
Drechslera
catenaria
).
Leaf Blight
or
Crown Rot
on creeping
bentgrass; red leaf lesions and leaf tip dieback;
eventually entire plant becomes blighted to
crown.
Perithecia superficial, blue, violet, or greenish;
spores hyaline with several cells. Conidial stage
in genus
Fusarium
with fusoid curved spores,
several-septate. The species causing stalk rots of
corn and producing gibberellic acid are more
important than those causing blights.
Gibberella baccata (
Fusarium lateritium
).
Twig Blight
of ailanthus, citrus, cotoneaster, fig,
hibiscus, hornbeam, peach, and other plants in
warm climates, sometimes associated with other
diseases.
