I have thrown out Japanese beetles too, with few takers. The only way I can get the BG to eat them is to throw out a handful of beetles, then throw some pellets over the beetles. They will clean up beetles as they eat the pellets. They might spit them out under water, but i have not observed that. Maybe they have an acrid taste.

Thank you for posting this information. It could save some of us money if we were thinking of building a "feeder" trap like that.

I have caught bunches of those beetles off our crape myrtles to experiment with for feeding. The BG will almost instantly hit a grasshopper thrown in, but beetles, not so much.

Last edited by John Fitzgerald; 07/08/18 06:49 PM.