1d83ea69___Publications___UGA_Extension__Symptom_s__of_Damage
[Insect] White grubs [Description of insect] The grub larva is about ¾ inch long when full grown, has a C-shaped white body, brown head, and three pairs of long legs; tip of the abdomen is usually dark because body contents show through the skin. [Symptom(s) of Damage] 
Plants wilted, stunted; purpling of leaves obvious; roots and root hairs chewed off.
Georgia Corn Diagnostic Guide | Publications | UGA Extension
Symptom(s) of Damage