1d83ea69___Publications___UGA_Extension__Symptom_s__of_Damage
[Insect] Common stalk borer [Description of insect] Prominent longitudinal white stripes at the head end and posterior end of body interrupted by a dark purple area near "shoulders;" head yellowish. [Symptom(s) of Damage] 
Plants bent or twisted, suckers apparent; irregular holes in leaves; insect frass (excrement) obvious.
Georgia Corn Diagnostic Guide | Publications | UGA Extension
Symptom(s) of Damage