The most common sign of ergot is the dark purple
to black sclerotia (ergot bodies) found replacing the
grain in the heads of cereals and grasses just prior to
harvest (Figure 1; a) rye field, b) wheat, c) various
grasses). The ergot bodies consist of a mass of vegetative
strands of the fungus. The interior of the sclerotia is
white or tannish-white. In some grains, ergot bodies are
larger than the normal grain kernels, while in other
grains, such as wheats, grain kernels and the ergot
bodies may be similar in size (Figure 2). A larger size
separation between the sclerotia and the grain kernel
simplifies the removal of ergot bodies during grain
cleaning.
Prior to development of the sclerotia bodies, the
fungus develops a stage in the open floret (flowering
head part) commonly called “honey dew.” The “honey
dew” consists of sticky, yellowish, sugary excretions of
the fungus which form droplets on the infected flower
parts.
The most common sign of ergot is the dark purpleto black sclerotia (ergot bodies) found replacing thegrain in the heads of cereals and grasses just prior toharvest (Figure 1; a) rye field, b) wheat, c) variousgrasses). The ergot bodies consist of a mass of vegetativestrands of the fungus. The interior of the sclerotia iswhite or tannish-white. In some grains, ergot bodies arelarger than the normal grain kernels, while in othergrains, such as wheats, grain kernels and the ergotbodies may be similar in size (Figure 2). A larger sizeseparation between the sclerotia and the grain kernelsimplifies the removal of ergot bodies during graincleaning.Prior to development of the sclerotia bodies, thefungus develops a stage in the open floret (floweringhead part) commonly called “honey dew.” The “honeydew” consists of sticky, yellowish, sugary excretions ofthe fungus which form droplets on the infected flowerparts.
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