You might contact your local county extension office to see if they have recommendations about non-chemical pest control methods. My brother was highly reactive to a lot of pesticides and herbicides, and our ag extension office was really helpful in recommending other things we might try - "home remedies" of sorts, some of which were more effective than others.
When I did a Google search for "flying ants non-chemical control," most of the recommendations have to do with keeping food contained where they can't get it, sealing cracks they're getting in through, washing all surfaces well so their chemical trails get destroyed, and locating and destroying the nest. You might also try localized chemical control methods like sticky traps or the Terro bait in areas where your younguns can't reach them.
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"If ten million people believe a foolish thing, it is still a foolish thing."
- Anatole France
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