1d83ea69___Publications___UGA_Extension__Symptom_s__of_Damage
[Insect] Corn rootworms [Description of insect] Full grown larva is yellowish-white, about inch long, and has a brown head capsule and brown tail plate. [Symptom(s) of Damage] 
Brownish tunnels in roots, root chewing or pruning evident. Generally, more prevalent with corn planted after corn.
Georgia Corn Diagnostic Guide | Publications | UGA Extension
Symptom(s) of Damage