So I don't believe any testing has been done for either of these, but two common rumors about Camponotus that I've picked up over the years are:
That they don't like crappy plastics
That wood-dwelling species may depend on botanical compounds or microbial ecosystems to keep an adequately clean nest.
I've been including pieces of dried pine resin (along with coconut fiber) in test tube setups, simply because I've heard that some ants (i.e. Formica rufa) are attracted to resin bits.
If you've enjoyed using my expertise and identifications, please do not create undue ecological risk by releasing your ants. The environment which we keep our pet insects is alien and oftentimes unsanitary, so ensure that wild populations stay safe by giving your ants the best care you can manage for the rest of their lives, as we must do with any other pet.
Exotic ants are for those who think that vibrant diversity is something you need to pay money to see. It is illegal to transport live ants across state lines.
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Black lives still matter.