I don't necessarily want to attract JBs but maybe redirect them to a plant that will make them drowsy enough to knock into a bucket of soapy water (my basic method). I did put a birdbath in my sunny garden area so hopefully visiting birds will make a meal out of the JBs. We put milky spore down twice a couple of years ago - just recently heard that late summer/early fall is the best time to do this. I have lots of birds back by the birdfeeder in the shade. The JBs tend to stay in the sun. They always fly in from the sunny, open west side of the subdivision. When it's really hot and sunny, they hide under leaves which makes it hard to find them. They also like tall azaleas (like my Northern Lights) and will do a little munching on climbing hydrangea but they don't bother Clematis (which I have several of, growing on trellises). Yeah - I've heard that about catching the first few beetles of the season but no, I'm not sitting out there guarding the garden.