25/09/2025
Though the idea of hot water/ steam injection for fire ant nests is a good one. It’s certainly a longer process to kill off one nest than with traditional granules and the go to Fipronal. Typically each nest can take 15 minutes to completely destroy (one initially and then another in 7 days again - total around 30minutes for a medium sized nest).
However in a lot of cases when injecting into hard ground (not cultivated farm land), the main nest will have very small interconnecting satellite hubs coming off them, it really then is a cross you fingers and hope there were no alates in those little hubs. If you do a good job, and the one nest was it, you will find worker ants gathering their dead.. and then just wander aimlessly while native ants start invading their unviable nests.
The hot water/ steam is a very niche piece of equipment (dont get me wrong, it’s very effective) for use in environmentally sensitive areas, parks and sports fields.
For farmers though, it might not be the go to until the technology catches up. Look at it this way, farm land that have serious infestations of 50 nests an acre will potentially have up to 12.5hrs in just treating labour time (this does not include moving and refilling tanks). If a farm has multiple acres, and have to reinspect and retreat 7 days later, this in my opinion becomes “the farmers new job” as it will take some time to cover over 20 acre farm scenarios, especially when the farm next door has the same problem and is doing nothing about it.
It’s a rock and a hard place for it being a viable piece of equipment for farming.