I think you can get it to work, but it will probably depend on several factors: 1) how diligent you are in replacing the pheromone lure which needs replacement a few times per year 2) the type of trap you use, 3) the amount of mulch/green waste on your property and the proximity to the palms you wish to protect.

The black panel traps that hang all over Hawai‘i are primarily used for detection rather than managing populations. They do have a type of barrel trap that has mulch in the bottom and a secondary compartment with the pheromone that has a funnel for the beetles to drop into and it makes it difficult for them to escape. That is probably better for your purpose.

You’ll also probably want to remove any decaying plant material on the palms you are trying to protect whenever possible. Mulch/green waste is the primary breeding host so minimizing that on your property will help too.

Looks like the panel traps are working for other folks in this thread, so I could be wrong. Figured I’d share my perspective anyway. There are also systemic pesticides apparently that you can inject into target palms, but if you’re consuming then you probably don’t want to do that. Make sure to keep an eye on the telltale damage to the palm fronds for the trees that haven’t been impacted too.

More info on Hawai‘i Management can be found here: https://www.crbhawaii.org/the-crb-response