The larger traps we use appear to be surrounded by a swarm of green bees all day long with beetles falling into container as they come in. The container can fill with beetles in about 2 days. Container volume is 35 gallons. Compare that to a feed sack volume. Then consider how many days it takes you to feed out a sack of feed in a typical pond stocked with Bluegill. Then consider same thing happening with 8 traps forming a perimeter on a 1-acre plot.
