they like overripe peaches and figs, for sure.
maybe an "island" cut-fruit plate in a baking sheet full of oil to keep the ants at bay ? but wasps, stink bugs, and birds are still gonna come. Fruit juice still isn't really close to nectar, so I really don't see the point... and them liking it isn't really a test .. they like the sugar water just fine, after all. Don't see what it would hurt, though.
I've been wondering if feeding a mix of corn syrup and sugar water would be better than plain sugar water ... and decrease chance of crystallization in cold weather. ... and what about adding "bee vitamins" to the syrup?