
          XXI
[drawings]
Cotton. Rusted bolls. Plate 21.
1. Young boll rusted.  2. Old boll showing a red fungoid growth. by some planters
called the red rust.  3. The same boll at a more advanced stage of the disease.
& by many distinguished from No 2. as the Black boll rust. The caterpillar &
figured is frequently found in rusted & rotted bolls. & is also common in maize (as in
the figure). in all the stages of its existance it resembles Tinea granella of Europe.
Although these insects are almost invariably found in rotted bolls yet they may be considered
merely as the effect & not the cause of the disease, which probably is of fungoid origin. They
are also found common in South Carolina in Maize. which has been previously injured by the
Heliothis armiger. the Boll or bore worm. or the weather.
T Glover
        