The trap has two larger compartments and a smaller center compartment.

I used a small spoon to add a small amount of agave nectar. I then close the small lid to this chamber to keep the beetles out of it.

Note that they can still smell it.

I use a small syringe to fill the larger chambers 1/3 full of vegetable oil.

The lids are then closed and its ready to install into the hive.

I had been using this 5ml syringe but have since moved to using these 10mm syringes.

The bottoms of the traps are flat so they will set upright but are a little tippy. For this reason, I stick them on top of an extra frame on my frame rack.

I stick one of the traps just off the main cluster in the middle section of the hive by sliding it over one of the frames. I push it back far enough so that the frame spacers on the rear screen will not come in contact with the trap.

Note that this one is a tight fit due to the slightly warped shelf above the frames. Once the rear screen is installed it will push the shelf back in-place.

Here I am installing one on the lower section of the hive.

After a month or so the traps can get pretty nasty and need to be cleaned.

I found the best way to do this is with a heated ultrasonic cleaner.

I’m just using water and some dish soap.

I purchased my cleaner here:

Ultrasonic Cleaner

While not spotless, the heated ultrasonic cleaner does to a good job. These are ready to be used again.