September 2, 20160 found this helpful
I put Avon's Skin So Soft around the little indentations that hold jelly for the orioles. The big black and white bees give up in about 3 days. They need to stand on the feeder and don't like the oil. My feeders are the flat ones that hold nectar and jelly. The yellow striped wasps are still here, but the nasty black and whites ones are gone.