A: Perch tend to be quick nippers rather than hard grabbers, meaning they strike short and miss the hook. Try using either a smaller jig or one with a shorter tail. Changing to a low-stretch braided line with a clear leader can help, too, by allowing a faster hookset than is possible with light monofilament, which stretches.
Outdoor Skills – Fishing Q&A
Q: Why do I seem to miss so many strikes when jigging for yellow perch? -Vic Thompson, Des Moines, Iowa