White grubs
Scout Emerging Corn for Insects; Don't Assume Protection
Corn rootworms - Bugwoodwiki
Spodoptera frugiperda (corn) - Bugwoodwiki
Rhopalosiphum maidis (corn) - Bugwoodwiki
White grubs
Mites (corn) - Bugwoodwiki
Early Season Corn Insect Pests, VE to V8
White Grubs
Understanding White Grubs: A Complete Guide for Beautiful Boundaries
White grubs - Bugwoodwiki
Cutworms on corn - Bugwoodwiki
Grubs - Sweet Corn - Ontario CropIPM