Sunlight just does not seem to work for me...yes, it did delay the destruction but if it was to happen, it did anyway. 40 carried over hives gone, 30 attempted splits and not one survived. Cutouts I did would make it a week and would then abscond. I bought 20 new Queens this year and of them, one made it.
Homesteadergal, last year, I saw just a few beetles but everything I read said if the hives were healthy, probably not a big issue. My hives were ok, perhaps not booming but strong enough. I was not major worried. Then, in May (this year), once it was settled and warm...bam! Like within a couple weeks, near everything was destroyed. It was amazing (and awfull). I pulled frames that were actually squirming with those filthy larva. It looked like a garbage can left out on a summer day with rotting meat. Maggots just boiling.
I guess what I am trying to say is that if this is the first year you have seen them, be super ready next spring- they may hit you like a ton of bricks like they did this year with me. Like you, I am looking into what might be best as far as traps go, the oil ones ect. I have realized that unless I do something to control them, beekeeping is over for me!
One thing I have learned is to wait till the last minut to super them, a tight hive seems to be the only way to keep them from invading. I am pushing all my remaining hives down to one box this winter.
I am half tempted to let all the hives just die off this winter just to break the cycle of the beetles and start over with package bees- not my favorit but I think maybe less likely to bring beetles back. I was SHB free untill I bought some Nucs (from a guy in VZ county no less!, lol) last spring.
I am really going to have to re-think this whole thing! I have so much money tied up in it!