Ok guys! We have a new addition to the Journal! I set up a trap over a local Formica pallidefullva colony, and when I checked today there was 3 queens and several dozen workers! I only took 2 queen, so as to let the colony continue on, and took around 1.5 dozen workers. I will make that an even 2 dozen tomorrow.
How do you set a trap for Formica?
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I've explained it a few times here, but I'll do it again.
The trap I used for this colony is the most simple I've developed so far. Basically place a flat stone over the mound, and on a warm and sunny day lift it up. If there's a queen, go ahead and collect her in one container, and her workers in the other. Repeat over the next few weeks or until there are no workers returning to the surface.