I've never had the problem in the past. At first I thought that the soap spray I recently started using attracted them, but why not all my other orchids?
All my plants are under 20/20 screening; southen exposure... and I'm in Palm Beach County, FL.... I water only once a week and my pots are mostly dry.
Greetings from St. Lucie County, John. Don't know how long you've been growing, but if you haven't had ants before, as one who also grows under screen I salute you. I doubt that the soap itself has anything to do with the ants suddenly adoring your Epis and Dends.
What were you using the soap spray for? I have to assume it was for some type of critters. If so, the critters could be what the ants are after.
Big ants? Little ants? Do they run like little miniature mad people? If so, they could be Caribbean crazy ants, which used to be confined to the far western areas but which made it east after the hurricanes of '04 and '05.
I think you're right; as I first started seeing them on the property just after the 04/05 season, but never on my orchids... or inside the house (at least not these guys).
I think I'll just start baiting (bait traps) in order to keep them under control.
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