Bad now--4 got me the other day....They love to build under the hood of my small Kubota--so now that I need it every few days I am leaving it out from under the shed..shed is open on east and west ends--- anybody know of any build your own trap or anything that will really work to attract/trap/kill them? I hate getting stung.I have made the "trap" from a plastic bottle with the inverted top--never caught even one--maybe I don't put the right kind of sweet smelling attractant in the trap...Any suggestions--and no I don't have one of those electronic flyswatters from Harbor Freight--need one though for my bumble bees..(they weren't as bad this Spring..