Field Crop Insects, Pests & Diseases - Grain Sorghum
The sorghum webworm (Figure 1) is an occasional pest of sorghum in Tennessee. Grain sorghum that is planted in late June can become severely damaged by this insect. Heavy infestations of webworms may completely destroy a developing grain head.
"SP341-B-Sorghum Webworm in Grain Sorghum," The University of Tennessee Agricultural Extension Service, , http://trace.tennessee.edu/utk_agexdise/46