Has flushing out an established nest of ants with a combination of lemon, distilled vinegar and water poured into the entrance been effective in obtaining queens, eggs and larvae?
I saw a video a while back, it might be the same one but I thought only lemon juice and water was used. It's worth pointing out that it was done to a nest in concrete and he chipped away to make sure that the liquid went into the nest properly. Sure enough though, the ants packed up and left. First workers found a new spot, then came workers carrying brood followed eventually by the Queen and her euntriage.
It did seem like a very passive way to collect a colony (or part thereof ).
Edit, I should also make it clear that it was just one average cup (200ml) of liquid, not enough to flood them out you'd think otherwise you could just use a hose.
Last year I had ants in a tomato pot and no way could I get them to move just using water, believe me I tried.
Edited by DaveJay, July 19 2018 - 2:31 AM.