Catching blue crabs is a difficult challenge when you don't have the proper bait. Noa bait trap is a pyramid net trap in which the bait is hung in the center of the trap that attracts the blue crabs toward it. $ 58.00 . Wire into entry holes. /* 300x250 32613 */ Prepare the Bait – If you’re unsure which bait to use you can check out our page on the best bait for crabs. You can construct a simple trap out of chicken wire.