Wow - very interesting. So many studies of JBs that I wasn't aware of. Thanks for posting that! My goal has always been to catch them before they pair up (if you know what I mean). My sunniest bed doesn't get sun until afternoon - that's when they start coming in. If it gets too hot for them, they hide underneath leaves or even flowers to do their feasting. So far, no luck with using 4 o'clocks or zonal geraniums as bait. Seems like the pots are too low to the ground.
